STEVEMIT
steve/split-lock-washer
Split lock washer (spring washer), DIN 127 form B, M2 to M100.
steve/tab-washer
Tab washers, flat as delivered: DIN 93 (long tab) and DIN 463 (long and short tab), M3 to M52.
Isometric
Section analysis
Plane normal
Offset
| 1 | """Tab washer (lock washer with tabs), flat as delivered: DIN 93 (one long tab) or DIN 463 (a long and a short tab at |
| 2 | right angles), M3 to M52. |
| 3 | |
| 4 | A disc of outside diameter d2 with the hole d1 and thickness s; the long tab of width b reaches l (DIN 93) or l1 |
| 5 | (DIN 463) from the hole's centre along +X, DIN 463's short tab l2 along +Y. The tabs' corner radius r is not |
| 6 | modelled. The washer lies on the XY plane at the origin, its thickness along +Z. |
| 7 | """ |
| 8 | from steve import Model |
| 9 | |
| 10 | standard = "DIN 93" # Standard |
| 11 | size = "M10" # Thread size |
| 12 | material = "steel" # Material |
| 13 | |
| 14 | # DIN 93:1974-07 table (https://fasten.it/norms/norm/din_93; https://www.fasteners.eu/standards/DIN/93/ for M4 to M39). size: (d1, d2, b, l, s) |
| 15 | DIN_93 = { |
| 16 | "M3": (3.2, 12.0, 4.0, 13.0, 0.38), "M3.5": (3.7, 12.0, 4.0, 13.0, 0.38), "M4": (4.3, 14.0, 5.0, 14.0, 0.38), |
| 17 | "M5": (5.3, 17.0, 6.0, 16.0, 0.5), "M6": (6.4, 19.0, 7.0, 18.0, 0.5), "M7": (7.4, 19.0, 7.0, 18.0, 0.5), |
| 18 | "M8": (8.4, 22.0, 8.0, 20.0, 0.75), "M10": (10.5, 26.0, 10.0, 22.0, 0.75), "M12": (13.0, 30.0, 12.0, 28.0, 1.0), |
| 19 | "M14": (15.0, 33.0, 12.0, 28.0, 1.0), "M16": (17.0, 36.0, 15.0, 32.0, 1.0), "M18": (19.0, 40.0, 18.0, 36.0, 1.0), |
| 20 | "M20": (21.0, 42.0, 18.0, 36.0, 1.0), "M22": (23.0, 50.0, 20.0, 42.0, 1.0), "M24": (25.0, 50.0, 20.0, 42.0, 1.0), |
| 21 | "M27": (28.0, 58.0, 23.0, 48.0, 1.6), "M30": (31.0, 63.0, 26.0, 52.0, 1.6), "M33": (34.0, 68.0, 28.0, 56.0, 1.6), |
| 22 | "M36": (37.0, 75.0, 30.0, 60.0, 1.6), "M39": (40.0, 82.0, 32.0, 64.0, 1.6), "M42": (43.0, 88.0, 35.0, 70.0, 1.6), |
| 23 | "M45": (46.0, 95.0, 38.0, 75.0, 1.6), "M48": (50.0, 100.0, 40.0, 80.0, 1.6), "M52": (54.0, 105.0, 44.0, 85.0, 1.6), |
| 24 | } |
| 25 | # DIN 463:1974-07 table (https://fasten.it/norms/norm/din_463; https://www.fasteners.eu/standards/DIN/463/ for M4 to M39, without d2). size: (d1, d2, b, l1, l2, s) |
| 26 | DIN_463 = { |
| 27 | "M3": (3.2, 7.0, 4.0, 13.0, 5.0, 0.38), "M3.5": (3.7, 8.0, 4.0, 13.0, 5.5, 0.38), |
| 28 | "M4": (4.3, 9.0, 5.0, 14.0, 6.5, 0.38), "M5": (5.3, 10.0, 6.0, 16.0, 8.0, 0.5), "M6": (6.4, 12.5, 7.0, 18.0, 9.0, 0.5), |
| 29 | "M7": (7.4, 14.0, 7.0, 18.0, 10.0, 0.5), "M8": (8.4, 17.0, 8.0, 20.0, 11.0, 0.75), |
| 30 | "M10": (10.5, 21.0, 10.0, 22.0, 13.0, 0.75), "M12": (13.0, 24.0, 12.0, 28.0, 15.0, 1.0), |
| 31 | "M14": (15.0, 28.0, 12.0, 28.0, 16.0, 1.0), "M16": (17.0, 30.0, 15.0, 32.0, 18.0, 1.0), |
| 32 | "M18": (19.0, 34.0, 18.0, 36.0, 20.0, 1.0), "M20": (21.0, 37.0, 18.0, 36.0, 21.0, 1.0), |
| 33 | "M22": (23.0, 39.0, 20.0, 42.0, 23.0, 1.0), "M24": (25.0, 44.0, 20.0, 42.0, 25.0, 1.0), |
| 34 | "M27": (28.0, 50.0, 23.0, 48.0, 29.0, 1.6), "M30": (31.0, 56.0, 26.0, 52.0, 32.0, 1.6), |
| 35 | "M33": (34.0, 60.0, 28.0, 56.0, 34.0, 1.6), "M36": (37.0, 66.0, 30.0, 60.0, 38.0, 1.6), |
| 36 | "M39": (40.0, 72.0, 32.0, 64.0, 41.0, 1.6), "M42": (43.0, 78.0, 35.0, 70.0, 44.0, 1.6), |
| 37 | "M45": (46.0, 85.0, 38.0, 75.0, 48.0, 1.6), "M48": (50.0, 92.0, 40.0, 80.0, 50.0, 1.6), |
| 38 | "M52": (54.0, 98.0, 44.0, 85.0, 53.0, 1.6), |
| 39 | } |
| 40 | # material choice: (STEVE material library id, appearance colour) |
| 41 | MATERIALS = { |
| 42 | "steel": ("steel-dc01", "#b4b7bb"), # soft (formable) steel |
| 43 | "stainless-a2": ("stainless-304", "#c9ccd0"), |
| 44 | } |
| 45 | |
| 46 | table = DIN_93 if standard == "DIN 93" else DIN_463 |
| 47 | if size not in table: |
| 48 | raise ValueError(f"{standard} has no size {size}") |
| 49 | row = table[size] |
| 50 | d1, d2, b = row[0], row[1], row[2] |
| 51 | long_tab = row[3] |
| 52 | short_tab = row[4] if standard == "DIN 463" else 0 |
| 53 | s = row[-1] |
| 54 | material_id, colour = MATERIALS[material] |
| 55 | |
| 56 | model = Model() |
| 57 | with model.sketch("disc_sketch", on="XY", name="Disc") as sk: |
| 58 | sk.circle("disc", (0, 0), d2 / 2) |
| 59 | model.extrude("disc", "disc_sketch", distance=s, name="Disc") |
| 60 | with model.sketch("long_tab_sketch", on="XY", name="Long tab") as sk: |
| 61 | sk.rect("long_tab_outline", (0, -b / 2), (long_tab, b / 2)) |
| 62 | model.extrude("long_tab", "long_tab_sketch", distance=s, name="Long tab") |
| 63 | if standard == "DIN 463": |
| 64 | with model.sketch("short_tab_sketch", on="XY", name="Short tab") as sk: |
| 65 | sk.rect("short_tab_outline", (-b / 2, 0), (b / 2, short_tab)) |
| 66 | model.extrude("short_tab", "short_tab_sketch", distance=s, name="Short tab") |
| 67 | with model.sketch("hole_sketch", on="XY", name="Hole") as sk: |
| 68 | sk.circle("hole", (0, 0), d1 / 2) |
| 69 | model.extrude("hole", "hole_sketch", distance=s, op="cut", name="Hole") |
| 70 | model.material(material_id, color=colour) |
| 71 | result = model.result() |
| 72 |
| 1 | name = "steve/tab-washer" |
| 2 | version = "1.0.0" |
| 3 | runtime = "steve" |
| 4 | license = "MIT" |
| 5 | summary = "Tab washers, flat as delivered: DIN 93 (long tab) and DIN 463 (long and short tab), M3 to M52." |
| 6 | description = """Tab (lock) washers before bending: DIN 93 with one long tab, DIN 463 with a long and a short tab at \ |
| 7 | right angles, with catalogue sizes as presets. A disc d2 with the hole d1 and thickness s, tabs of width b to l / l1 \ |
| 8 | (along +X) and l2 (along +Y) from the hole's centre; the tab corner radius is not modelled. |
| 9 | |
| 10 | The washer lies on the XY plane at the origin, its thickness along +Z. Dimensions from DIN 93 and DIN 463 (see the \ |
| 11 | README).""" |
| 12 | tags = ["fastener", "washer", "tab-washer", "lock-washer", "din-93", "din-463", "metric"] |
| 13 | |
| 14 | [parameters.standard] |
| 15 | type = "choice" |
| 16 | default = "DIN 93" |
| 17 | choices = ["DIN 93", "DIN 463"] |
| 18 | label = "Standard" |
| 19 | description = "DIN 93: one long tab; DIN 463: a long and a short tab at right angles." |
| 20 | |
| 21 | [parameters.size] |
| 22 | type = "choice" |
| 23 | default = "M10" |
| 24 | choices = ["M3", "M3.5", "M4", "M5", "M6", "M7", "M8", "M10", "M12", "M14", "M16", "M18", "M20", "M22", "M24", "M27", "M30", "M33", "M36", "M39", "M42", "M45", "M48", "M52"] |
| 25 | label = "Thread size" |
| 26 | |
| 27 | [parameters.material] |
| 28 | type = "choice" |
| 29 | default = "steel" |
| 30 | choices = ["steel", "stainless-a2"] |
| 31 | label = "Material" |
| 32 |
| 1 | # Presets of this part (factory/PRESETS.md). Written by factory/gen.py. |
| 2 | |
| 3 | [[presets]] |
| 4 | id = "DIN93-M4" |
| 5 | title = "Tab washer M4, long tab (DIN 93)" |
| 6 | params = { standard = "DIN 93", size = "M4" } |
| 7 | aliases = ["DIN 93 M4", "tab washer M4", "DIN93 M4", "M4 washer"] |
| 8 | standard = "DIN 93" |
| 9 | |
| 10 | [[presets]] |
| 11 | id = "DIN93-M6" |
| 12 | title = "Tab washer M6, long tab (DIN 93)" |
| 13 | params = { standard = "DIN 93", size = "M6" } |
| 14 | aliases = ["DIN 93 M6", "tab washer M6", "DIN93 M6", "M6 washer"] |
| 15 | standard = "DIN 93" |
| 16 | |
| 17 | [[presets]] |
| 18 | id = "DIN93-M8" |
| 19 | title = "Tab washer M8, long tab (DIN 93)" |
| 20 | params = { standard = "DIN 93", size = "M8" } |
| 21 | aliases = ["DIN 93 M8", "tab washer M8", "DIN93 M8", "M8 washer"] |
| 22 | standard = "DIN 93" |
| 23 | |
| 24 | [[presets]] |
| 25 | id = "DIN93-M10" |
| 26 | title = "Tab washer M10, long tab (DIN 93)" |
| 27 | params = { standard = "DIN 93", size = "M10" } |
| 28 | aliases = ["DIN 93 M10", "tab washer M10", "DIN93 M10", "M10 washer"] |
| 29 | standard = "DIN 93" |
| 30 | |
| 31 | [[presets]] |
| 32 | id = "DIN93-M12" |
| 33 | title = "Tab washer M12, long tab (DIN 93)" |
| 34 | params = { standard = "DIN 93", size = "M12" } |
| 35 | aliases = ["DIN 93 M12", "tab washer M12", "DIN93 M12", "M12 washer"] |
| 36 | standard = "DIN 93" |
| 37 | |
| 38 | [[presets]] |
| 39 | id = "DIN93-M14" |
| 40 | title = "Tab washer M14, long tab (DIN 93)" |
| 41 | params = { standard = "DIN 93", size = "M14" } |
| 42 | aliases = ["DIN 93 M14", "tab washer M14", "DIN93 M14", "M14 washer"] |
| 43 | standard = "DIN 93" |
| 44 | |
| 45 | [[presets]] |
| 46 | id = "DIN93-M16" |
| 47 | title = "Tab washer M16, long tab (DIN 93)" |
| 48 | params = { standard = "DIN 93", size = "M16" } |
| 49 | aliases = ["DIN 93 M16", "tab washer M16", "DIN93 M16", "M16 washer"] |
| 50 | standard = "DIN 93" |
| 51 | |
| 52 | [[presets]] |
| 53 | id = "DIN93-M18" |
| 54 | title = "Tab washer M18, long tab (DIN 93)" |
| 55 | params = { standard = "DIN 93", size = "M18" } |
| 56 | aliases = ["DIN 93 M18", "tab washer M18", "DIN93 M18", "M18 washer"] |
| 57 | standard = "DIN 93" |
| 58 | |
| 59 | [[presets]] |
| 60 | id = "DIN93-M20" |
| 61 | title = "Tab washer M20, long tab (DIN 93)" |
| 62 | params = { standard = "DIN 93", size = "M20" } |
| 63 | aliases = ["DIN 93 M20", "tab washer M20", "DIN93 M20", "M20 washer"] |
| 64 | standard = "DIN 93" |
| 65 | |
| 66 | [[presets]] |
| 67 | id = "DIN93-M22" |
| 68 | title = "Tab washer M22, long tab (DIN 93)" |
| 69 | params = { standard = "DIN 93", size = "M22" } |
| 70 | aliases = ["DIN 93 M22", "tab washer M22", "DIN93 M22", "M22 washer"] |
| 71 | standard = "DIN 93" |
| 72 | |
| 73 | [[presets]] |
| 74 | id = "DIN93-M24" |
| 75 | title = "Tab washer M24, long tab (DIN 93)" |
| 76 | params = { standard = "DIN 93", size = "M24" } |
| 77 | aliases = ["DIN 93 M24", "tab washer M24", "DIN93 M24", "M24 washer"] |
| 78 | standard = "DIN 93" |
| 79 | |
| 80 | [[presets]] |
| 81 | id = "DIN93-M27" |
| 82 | title = "Tab washer M27, long tab (DIN 93)" |
| 83 | params = { standard = "DIN 93", size = "M27" } |
| 84 | aliases = ["DIN 93 M27", "tab washer M27", "DIN93 M27", "M27 washer"] |
| 85 | standard = "DIN 93" |
| 86 | |
| 87 | [[presets]] |
| 88 | id = "DIN93-M30" |
| 89 | title = "Tab washer M30, long tab (DIN 93)" |
| 90 | params = { standard = "DIN 93", size = "M30" } |
| 91 | aliases = ["DIN 93 M30", "tab washer M30", "DIN93 M30", "M30 washer"] |
| 92 | standard = "DIN 93" |
| 93 | |
| 94 | [[presets]] |
| 95 | id = "DIN93-M33" |
| 96 | title = "Tab washer M33, long tab (DIN 93)" |
| 97 | params = { standard = "DIN 93", size = "M33" } |
| 98 | aliases = ["DIN 93 M33", "tab washer M33", "DIN93 M33", "M33 washer"] |
| 99 | standard = "DIN 93" |
| 100 | |
| 101 | [[presets]] |
| 102 | id = "DIN463-M3" |
| 103 | title = "Tab washer M3, long and short tab (DIN 463)" |
| 104 | params = { standard = "DIN 463", size = "M3" } |
| 105 | aliases = ["DIN 463 M3", "tab washer M3", "DIN463 M3", "M3 washer"] |
| 106 | standard = "DIN 463" |
| 107 | |
| 108 | [[presets]] |
| 109 | id = "DIN463-M3.5" |
| 110 | title = "Tab washer M3.5, long and short tab (DIN 463)" |
| 111 | params = { standard = "DIN 463", size = "M3.5" } |
| 112 | aliases = ["DIN 463 M3.5", "tab washer M3.5", "DIN463 M3.5", "M3.5 washer"] |
| 113 | standard = "DIN 463" |
| 114 | |
| 115 | [[presets]] |
| 116 | id = "DIN463-M4" |
| 117 | title = "Tab washer M4, long and short tab (DIN 463)" |
| 118 | params = { standard = "DIN 463", size = "M4" } |
| 119 | aliases = ["DIN 463 M4", "tab washer M4", "DIN463 M4", "M4 washer"] |
| 120 | standard = "DIN 463" |
| 121 | |
| 122 | [[presets]] |
| 123 | id = "DIN463-M5" |
| 124 | title = "Tab washer M5, long and short tab (DIN 463)" |
| 125 | params = { standard = "DIN 463", size = "M5" } |
| 126 | aliases = ["DIN 463 M5", "tab washer M5", "DIN463 M5", "M5 washer"] |
| 127 | standard = "DIN 463" |
| 128 | |
| 129 | [[presets]] |
| 130 | id = "DIN463-M6" |
| 131 | title = "Tab washer M6, long and short tab (DIN 463)" |
| 132 | params = { standard = "DIN 463", size = "M6" } |
| 133 | aliases = ["DIN 463 M6", "tab washer M6", "DIN463 M6", "M6 washer"] |
| 134 | standard = "DIN 463" |
| 135 | |
| 136 | [[presets]] |
| 137 | id = "DIN463-M7" |
| 138 | title = "Tab washer M7, long and short tab (DIN 463)" |
| 139 | params = { standard = "DIN 463", size = "M7" } |
| 140 | aliases = ["DIN 463 M7", "tab washer M7", "DIN463 M7", "M7 washer"] |
| 141 | standard = "DIN 463" |
| 142 | |
| 143 | [[presets]] |
| 144 | id = "DIN463-M8" |
| 145 | title = "Tab washer M8, long and short tab (DIN 463)" |
| 146 | params = { standard = "DIN 463", size = "M8" } |
| 147 | aliases = ["DIN 463 M8", "tab washer M8", "DIN463 M8", "M8 washer"] |
| 148 | standard = "DIN 463" |
| 149 | |
| 150 | [[presets]] |
| 151 | id = "DIN463-M10" |
| 152 | title = "Tab washer M10, long and short tab (DIN 463)" |
| 153 | params = { standard = "DIN 463", size = "M10" } |
| 154 | aliases = ["DIN 463 M10", "tab washer M10", "M10 tab washer", "DIN463 M10"] |
| 155 | standard = "DIN 463" |
| 156 | |
| 157 | [[presets]] |
| 158 | id = "DIN463-M12" |
| 159 | title = "Tab washer M12, long and short tab (DIN 463)" |
| 160 | params = { standard = "DIN 463", size = "M12" } |
| 161 | aliases = ["DIN 463 M12", "tab washer M12", "M12 tab washer", "DIN463 M12"] |
| 162 | standard = "DIN 463" |
| 163 | |
| 164 | [[presets]] |
| 165 | id = "DIN463-M14" |
| 166 | title = "Tab washer M14, long and short tab (DIN 463)" |
| 167 | params = { standard = "DIN 463", size = "M14" } |
| 168 | aliases = ["DIN 463 M14", "tab washer M14", "M14 tab washer", "DIN463 M14"] |
| 169 | standard = "DIN 463" |
| 170 | |
| 171 | [[presets]] |
| 172 | id = "DIN463-M16" |
| 173 | title = "Tab washer M16, long and short tab (DIN 463)" |
| 174 | params = { standard = "DIN 463", size = "M16" } |
| 175 | aliases = ["DIN 463 M16", "tab washer M16", "M16 tab washer", "DIN463 M16"] |
| 176 | standard = "DIN 463" |
| 177 | |
| 178 | [[presets]] |
| 179 | id = "DIN463-M18" |
| 180 | title = "Tab washer M18, long and short tab (DIN 463)" |
| 181 | params = { standard = "DIN 463", size = "M18" } |
| 182 | aliases = ["DIN 463 M18", "tab washer M18", "DIN463 M18", "M18 washer"] |
| 183 | standard = "DIN 463" |
| 184 | |
| 185 | [[presets]] |
| 186 | id = "DIN463-M20" |
| 187 | title = "Tab washer M20, long and short tab (DIN 463)" |
| 188 | params = { standard = "DIN 463", size = "M20" } |
| 189 | aliases = ["DIN 463 M20", "tab washer M20", "DIN463 M20", "M20 washer"] |
| 190 | standard = "DIN 463" |
| 191 | |
| 192 | [[presets]] |
| 193 | id = "DIN463-M22" |
| 194 | title = "Tab washer M22, long and short tab (DIN 463)" |
| 195 | params = { standard = "DIN 463", size = "M22" } |
| 196 | aliases = ["DIN 463 M22", "tab washer M22", "DIN463 M22", "M22 washer"] |
| 197 | standard = "DIN 463" |
| 198 | |
| 199 | [[presets]] |
| 200 | id = "DIN463-M24" |
| 201 | title = "Tab washer M24, long and short tab (DIN 463)" |
| 202 | params = { standard = "DIN 463", size = "M24" } |
| 203 | aliases = ["DIN 463 M24", "tab washer M24", "DIN463 M24", "M24 washer"] |
| 204 | standard = "DIN 463" |
| 205 | |
| 206 | [[presets]] |
| 207 | id = "DIN463-M27" |
| 208 | title = "Tab washer M27, long and short tab (DIN 463)" |
| 209 | params = { standard = "DIN 463", size = "M27" } |
| 210 | aliases = ["DIN 463 M27", "tab washer M27", "DIN463 M27", "M27 washer"] |
| 211 | standard = "DIN 463" |
| 212 | |
| 213 | [[presets]] |
| 214 | id = "DIN463-M30" |
| 215 | title = "Tab washer M30, long and short tab (DIN 463)" |
| 216 | params = { standard = "DIN 463", size = "M30" } |
| 217 | aliases = ["DIN 463 M30", "tab washer M30", "DIN463 M30", "M30 washer"] |
| 218 | standard = "DIN 463" |
| 219 | |
| 220 | [[presets]] |
| 221 | id = "DIN463-M33" |
| 222 | title = "Tab washer M33, long and short tab (DIN 463)" |
| 223 | params = { standard = "DIN 463", size = "M33" } |
| 224 | aliases = ["DIN 463 M33", "tab washer M33", "DIN463 M33", "M33 washer"] |
| 225 | standard = "DIN 463" |
| 226 | |
| 227 | [[presets]] |
| 228 | id = "DIN463-M36" |
| 229 | title = "Tab washer M36, long and short tab (DIN 463)" |
| 230 | params = { standard = "DIN 463", size = "M36" } |
| 231 | aliases = ["DIN 463 M36", "tab washer M36", "DIN463 M36", "M36 washer"] |
| 232 | standard = "DIN 463" |
| 233 | |
| 234 | [[presets]] |
| 235 | id = "DIN463-M39" |
| 236 | title = "Tab washer M39, long and short tab (DIN 463)" |
| 237 | params = { standard = "DIN 463", size = "M39" } |
| 238 | aliases = ["DIN 463 M39", "tab washer M39", "DIN463 M39", "M39 washer"] |
| 239 | standard = "DIN 463" |
| 240 | |
| 241 | [[presets]] |
| 242 | id = "DIN463-M42" |
| 243 | title = "Tab washer M42, long and short tab (DIN 463)" |
| 244 | params = { standard = "DIN 463", size = "M42" } |
| 245 | aliases = ["DIN 463 M42", "tab washer M42", "DIN463 M42", "M42 washer"] |
| 246 | standard = "DIN 463" |
| 247 | |
| 248 | [[presets]] |
| 249 | id = "DIN463-M45" |
| 250 | title = "Tab washer M45, long and short tab (DIN 463)" |
| 251 | params = { standard = "DIN 463", size = "M45" } |
| 252 | aliases = ["DIN 463 M45", "tab washer M45", "DIN463 M45", "M45 washer"] |
| 253 | standard = "DIN 463" |
| 254 | |
| 255 | [[presets]] |
| 256 | id = "DIN463-M48" |
| 257 | title = "Tab washer M48, long and short tab (DIN 463)" |
| 258 | params = { standard = "DIN 463", size = "M48" } |
| 259 | aliases = ["DIN 463 M48", "tab washer M48", "DIN463 M48", "M48 washer"] |
| 260 | standard = "DIN 463" |
| 261 | |
| 262 | [[presets]] |
| 263 | id = "DIN463-M52" |
| 264 | title = "Tab washer M52, long and short tab (DIN 463)" |
| 265 | params = { standard = "DIN 463", size = "M52" } |
| 266 | aliases = ["DIN 463 M52", "tab washer M52", "DIN463 M52", "M52 washer"] |
| 267 | standard = "DIN 463" |
| 268 |
Tab washer (DIN 93, DIN 463)
Tab (lock) washers as delivered, flat: DIN 93 with one long tab, DIN 463 with a long and a short tab at right angles, M3 to M52, with catalogue sizes as presets.
Geometry
A disc of outside diameter d2 with the hole d1 and thickness s. The long tab, width b, reaches l (DIN 93) or l1 (DIN 463) from the hole's centre along +X; DIN 463's short tab, also width b, reaches l2 along +Y. The tabs' corner radius r is not modelled. The washer lies on the XY plane at the origin, its thickness along +Z.
Parameters
| Parameter | Meaning |
|---|---|
standard |
DIN 93 (long tab), DIN 463 (long and short tab) |
size |
Thread size, M3 to M52 |
material |
steel (soft, formable), stainless-a2 |
Sources
Tables read from the reproductions on fasten.it (mm), checked against fasteners.eu for M4 to M39.
DIN 93:1974-07, tab washers with long tab
https://fasten.it/norms/norm/din_93; https://www.fasteners.eu/standards/DIN/93/.
| Size | d1 | d2 | b | l | s |
|---|---|---|---|---|---|
| M3 | 3.2 | 12 | 4 | 13 | 0.38 |
| M3.5 | 3.7 | 12 | 4 | 13 | 0.38 |
| M4 | 4.3 | 14 | 5 | 14 | 0.38 |
| M5 | 5.3 | 17 | 6 | 16 | 0.5 |
| M6 | 6.4 | 19 | 7 | 18 | 0.5 |
| M7 | 7.4 | 19 | 7 | 18 | 0.5 |
| M8 | 8.4 | 22 | 8 | 20 | 0.75 |
| M10 | 10.5 | 26 | 10 | 22 | 0.75 |
| M12 | 13 | 30 | 12 | 28 | 1 |
| M14 | 15 | 33 | 12 | 28 | 1 |
| M16 | 17 | 36 | 15 | 32 | 1 |
| M18 | 19 | 40 | 18 | 36 | 1 |
| M20 | 21 | 42 | 18 | 36 | 1 |
| M22 | 23 | 50 | 20 | 42 | 1 |
| M24 | 25 | 50 | 20 | 42 | 1 |
| M27 | 28 | 58 | 23 | 48 | 1.6 |
| M30 | 31 | 63 | 26 | 52 | 1.6 |
| M33 | 34 | 68 | 28 | 56 | 1.6 |
| M36 | 37 | 75 | 30 | 60 | 1.6 |
| M39 | 40 | 82 | 32 | 64 | 1.6 |
| M42 | 43 | 88 | 35 | 70 | 1.6 |
| M45 | 46 | 95 | 38 | 75 | 1.6 |
| M48 | 50 | 100 | 40 | 80 | 1.6 |
| M52 | 54 | 105 | 44 | 85 | 1.6 |
DIN 463:1974-07, tab washers with long and short tab at right angles
https://fasten.it/norms/norm/din_463; https://www.fasteners.eu/standards/DIN/463/ (no d2).
| Size | d1 | d2 | b | l1 | l2 | s |
|---|---|---|---|---|---|---|
| M3 | 3.2 | 7 | 4 | 13 | 5 | 0.38 |
| M3.5 | 3.7 | 8 | 4 | 13 | 5.5 | 0.38 |
| M4 | 4.3 | 9 | 5 | 14 | 6.5 | 0.38 |
| M5 | 5.3 | 10 | 6 | 16 | 8 | 0.5 |
| M6 | 6.4 | 12.5 | 7 | 18 | 9 | 0.5 |
| M7 | 7.4 | 14 | 7 | 18 | 10 | 0.5 |
| M8 | 8.4 | 17 | 8 | 20 | 11 | 0.75 |
| M10 | 10.5 | 21 | 10 | 22 | 13 | 0.75 |
| M12 | 13 | 24 | 12 | 28 | 15 | 1 |
| M14 | 15 | 28 | 12 | 28 | 16 | 1 |
| M16 | 17 | 30 | 15 | 32 | 18 | 1 |
| M18 | 19 | 34 | 18 | 36 | 20 | 1 |
| M20 | 21 | 37 | 18 | 36 | 21 | 1 |
| M22 | 23 | 39 | 20 | 42 | 23 | 1 |
| M24 | 25 | 44 | 20 | 42 | 25 | 1 |
| M27 | 28 | 50 | 23 | 48 | 29 | 1.6 |
| M30 | 31 | 56 | 26 | 52 | 32 | 1.6 |
| M33 | 34 | 60 | 28 | 56 | 34 | 1.6 |
| M36 | 37 | 66 | 30 | 60 | 38 | 1.6 |
| M39 | 40 | 72 | 32 | 64 | 41 | 1.6 |
| M42 | 43 | 78 | 35 | 70 | 44 | 1.6 |
| M45 | 46 | 85 | 38 | 75 | 48 | 1.6 |
| M48 | 50 | 92 | 40 | 80 | 50 | 1.6 |
| M52 | 54 | 98 | 44 | 85 | 53 | 1.6 |
Preset list: sizes of the step.parts catalogue (MIT), see library/NOTICE.md.
| 1 | # Tab washer (DIN 93, DIN 463) |
| 2 | |
| 3 | Tab (lock) washers as delivered, flat: DIN 93 with one long tab, DIN 463 with a long and a short tab at right |
| 4 | angles, M3 to M52, with catalogue sizes as presets. |
| 5 | |
| 6 | ## Geometry |
| 7 | |
| 8 | A disc of outside diameter **d2** with the hole **d1** and thickness **s**. The long tab, width **b**, reaches **l** |
| 9 | (DIN 93) or **l1** (DIN 463) from the hole's centre along +X; DIN 463's short tab, also width b, reaches **l2** along |
| 10 | +Y. The tabs' corner radius **r** is not modelled. The washer lies on the XY plane at the origin, its thickness along |
| 11 | +Z. |
| 12 | |
| 13 | ## Parameters |
| 14 | |
| 15 | | Parameter | Meaning | |
| 16 | |---|---| |
| 17 | | `standard` | `DIN 93` (long tab), `DIN 463` (long and short tab) | |
| 18 | | `size` | Thread size, M3 to M52 | |
| 19 | | `material` | `steel` (soft, formable), `stainless-a2` | |
| 20 | |
| 21 | ## Sources |
| 22 | |
| 23 | Tables read from the reproductions on fasten.it (mm), checked against fasteners.eu for M4 to M39. |
| 24 | |
| 25 | ### DIN 93:1974-07, tab washers with long tab |
| 26 | |
| 27 | <https://fasten.it/norms/norm/din_93>; <https://www.fasteners.eu/standards/DIN/93/>. |
| 28 | |
| 29 | | Size | d1 | d2 | b | l | s | |
| 30 | |---|---|---|---|---|---| |
| 31 | | M3 | 3.2 | 12 | 4 | 13 | 0.38 | |
| 32 | | M3.5 | 3.7 | 12 | 4 | 13 | 0.38 | |
| 33 | | M4 | 4.3 | 14 | 5 | 14 | 0.38 | |
| 34 | | M5 | 5.3 | 17 | 6 | 16 | 0.5 | |
| 35 | | M6 | 6.4 | 19 | 7 | 18 | 0.5 | |
| 36 | | M7 | 7.4 | 19 | 7 | 18 | 0.5 | |
| 37 | | M8 | 8.4 | 22 | 8 | 20 | 0.75 | |
| 38 | | M10 | 10.5 | 26 | 10 | 22 | 0.75 | |
| 39 | | M12 | 13 | 30 | 12 | 28 | 1 | |
| 40 | | M14 | 15 | 33 | 12 | 28 | 1 | |
| 41 | | M16 | 17 | 36 | 15 | 32 | 1 | |
| 42 | | M18 | 19 | 40 | 18 | 36 | 1 | |
| 43 | | M20 | 21 | 42 | 18 | 36 | 1 | |
| 44 | | M22 | 23 | 50 | 20 | 42 | 1 | |
| 45 | | M24 | 25 | 50 | 20 | 42 | 1 | |
| 46 | | M27 | 28 | 58 | 23 | 48 | 1.6 | |
| 47 | | M30 | 31 | 63 | 26 | 52 | 1.6 | |
| 48 | | M33 | 34 | 68 | 28 | 56 | 1.6 | |
| 49 | | M36 | 37 | 75 | 30 | 60 | 1.6 | |
| 50 | | M39 | 40 | 82 | 32 | 64 | 1.6 | |
| 51 | | M42 | 43 | 88 | 35 | 70 | 1.6 | |
| 52 | | M45 | 46 | 95 | 38 | 75 | 1.6 | |
| 53 | | M48 | 50 | 100 | 40 | 80 | 1.6 | |
| 54 | | M52 | 54 | 105 | 44 | 85 | 1.6 | |
| 55 | |
| 56 | ### DIN 463:1974-07, tab washers with long and short tab at right angles |
| 57 | |
| 58 | <https://fasten.it/norms/norm/din_463>; <https://www.fasteners.eu/standards/DIN/463/> (no d2). |
| 59 | |
| 60 | | Size | d1 | d2 | b | l1 | l2 | s | |
| 61 | |---|---|---|---|---|---|---| |
| 62 | | M3 | 3.2 | 7 | 4 | 13 | 5 | 0.38 | |
| 63 | | M3.5 | 3.7 | 8 | 4 | 13 | 5.5 | 0.38 | |
| 64 | | M4 | 4.3 | 9 | 5 | 14 | 6.5 | 0.38 | |
| 65 | | M5 | 5.3 | 10 | 6 | 16 | 8 | 0.5 | |
| 66 | | M6 | 6.4 | 12.5 | 7 | 18 | 9 | 0.5 | |
| 67 | | M7 | 7.4 | 14 | 7 | 18 | 10 | 0.5 | |
| 68 | | M8 | 8.4 | 17 | 8 | 20 | 11 | 0.75 | |
| 69 | | M10 | 10.5 | 21 | 10 | 22 | 13 | 0.75 | |
| 70 | | M12 | 13 | 24 | 12 | 28 | 15 | 1 | |
| 71 | | M14 | 15 | 28 | 12 | 28 | 16 | 1 | |
| 72 | | M16 | 17 | 30 | 15 | 32 | 18 | 1 | |
| 73 | | M18 | 19 | 34 | 18 | 36 | 20 | 1 | |
| 74 | | M20 | 21 | 37 | 18 | 36 | 21 | 1 | |
| 75 | | M22 | 23 | 39 | 20 | 42 | 23 | 1 | |
| 76 | | M24 | 25 | 44 | 20 | 42 | 25 | 1 | |
| 77 | | M27 | 28 | 50 | 23 | 48 | 29 | 1.6 | |
| 78 | | M30 | 31 | 56 | 26 | 52 | 32 | 1.6 | |
| 79 | | M33 | 34 | 60 | 28 | 56 | 34 | 1.6 | |
| 80 | | M36 | 37 | 66 | 30 | 60 | 38 | 1.6 | |
| 81 | | M39 | 40 | 72 | 32 | 64 | 41 | 1.6 | |
| 82 | | M42 | 43 | 78 | 35 | 70 | 44 | 1.6 | |
| 83 | | M45 | 46 | 85 | 38 | 75 | 48 | 1.6 | |
| 84 | | M48 | 50 | 92 | 40 | 80 | 50 | 1.6 | |
| 85 | | M52 | 54 | 98 | 44 | 85 | 53 | 1.6 | |
| 86 | |
| 87 | Preset list: sizes of the step.parts catalogue (MIT), see `library/NOTICE.md`. |
| 88 |
Tab (lock) washers before bending: DIN 93 with one long tab, DIN 463 with a long and a short tab at right angles, with catalogue sizes as presets. A disc d2 with the hole d1 and thickness s, tabs of width b to l / l1 (along +X) and l2 (along +Y) from the hole's centre; the tab corner radius is not modelled. The washer lies on the XY plane at the origin, its thickness along +Z. Dimensions from DIN 93 and DIN 463 (see the README).
Tab washer (DIN 93, DIN 463)
Tab (lock) washers as delivered, flat: DIN 93 with one long tab, DIN 463 with a long and a short tab at right angles, M3 to M52, with catalogue sizes as presets.
Geometry
A disc of outside diameter d2 with the hole d1 and thickness s. The long tab, width b, reaches l (DIN 93) or l1 (DIN 463) from the hole's centre along +X; DIN 463's short tab, also width b, reaches l2 along +Y. The tabs' corner radius r is not modelled. The washer lies on the XY plane at the origin, its thickness along +Z.
Parameters
| Parameter | Meaning |
|---|---|
standard |
DIN 93 (long tab), DIN 463 (long and short tab) |
size |
Thread size, M3 to M52 |
material |
steel (soft, formable), stainless-a2 |
Sources
Tables read from the reproductions on fasten.it (mm), checked against fasteners.eu for M4 to M39.
DIN 93:1974-07, tab washers with long tab
https://fasten.it/norms/norm/din_93; https://www.fasteners.eu/standards/DIN/93/.
| Size | d1 | d2 | b | l | s |
|---|---|---|---|---|---|
| M3 | 3.2 | 12 | 4 | 13 | 0.38 |
| M3.5 | 3.7 | 12 | 4 | 13 | 0.38 |
| M4 | 4.3 | 14 | 5 | 14 | 0.38 |
| M5 | 5.3 | 17 | 6 | 16 | 0.5 |
| M6 | 6.4 | 19 | 7 | 18 | 0.5 |
| M7 | 7.4 | 19 | 7 | 18 | 0.5 |
| M8 | 8.4 | 22 | 8 | 20 | 0.75 |
| M10 | 10.5 | 26 | 10 | 22 | 0.75 |
| M12 | 13 | 30 | 12 | 28 | 1 |
| M14 | 15 | 33 | 12 | 28 | 1 |
| M16 | 17 | 36 | 15 | 32 | 1 |
| M18 | 19 | 40 | 18 | 36 | 1 |
| M20 | 21 | 42 | 18 | 36 | 1 |
| M22 | 23 | 50 | 20 | 42 | 1 |
| M24 | 25 | 50 | 20 | 42 | 1 |
| M27 | 28 | 58 | 23 | 48 | 1.6 |
| M30 | 31 | 63 | 26 | 52 | 1.6 |
| M33 | 34 | 68 | 28 | 56 | 1.6 |
| M36 | 37 | 75 | 30 | 60 | 1.6 |
| M39 | 40 | 82 | 32 | 64 | 1.6 |
| M42 | 43 | 88 | 35 | 70 | 1.6 |
| M45 | 46 | 95 | 38 | 75 | 1.6 |
| M48 | 50 | 100 | 40 | 80 | 1.6 |
| M52 | 54 | 105 | 44 | 85 | 1.6 |
DIN 463:1974-07, tab washers with long and short tab at right angles
https://fasten.it/norms/norm/din_463; https://www.fasteners.eu/standards/DIN/463/ (no d2).
| Size | d1 | d2 | b | l1 | l2 | s |
|---|---|---|---|---|---|---|
| M3 | 3.2 | 7 | 4 | 13 | 5 | 0.38 |
| M3.5 | 3.7 | 8 | 4 | 13 | 5.5 | 0.38 |
| M4 | 4.3 | 9 | 5 | 14 | 6.5 | 0.38 |
| M5 | 5.3 | 10 | 6 | 16 | 8 | 0.5 |
| M6 | 6.4 | 12.5 | 7 | 18 | 9 | 0.5 |
| M7 | 7.4 | 14 | 7 | 18 | 10 | 0.5 |
| M8 | 8.4 | 17 | 8 | 20 | 11 | 0.75 |
| M10 | 10.5 | 21 | 10 | 22 | 13 | 0.75 |
| M12 | 13 | 24 | 12 | 28 | 15 | 1 |
| M14 | 15 | 28 | 12 | 28 | 16 | 1 |
| M16 | 17 | 30 | 15 | 32 | 18 | 1 |
| M18 | 19 | 34 | 18 | 36 | 20 | 1 |
| M20 | 21 | 37 | 18 | 36 | 21 | 1 |
| M22 | 23 | 39 | 20 | 42 | 23 | 1 |
| M24 | 25 | 44 | 20 | 42 | 25 | 1 |
| M27 | 28 | 50 | 23 | 48 | 29 | 1.6 |
| M30 | 31 | 56 | 26 | 52 | 32 | 1.6 |
| M33 | 34 | 60 | 28 | 56 | 34 | 1.6 |
| M36 | 37 | 66 | 30 | 60 | 38 | 1.6 |
| M39 | 40 | 72 | 32 | 64 | 41 | 1.6 |
| M42 | 43 | 78 | 35 | 70 | 44 | 1.6 |
| M45 | 46 | 85 | 38 | 75 | 48 | 1.6 |
| M48 | 50 | 92 | 40 | 80 | 50 | 1.6 |
| M52 | 54 | 98 | 44 | 85 | 53 | 1.6 |
Preset list: sizes of the step.parts catalogue (MIT), see library/NOTICE.md.
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