docs/CC-DIN315-DS-M4.pdf

Datasheet — M4 Wing Nut (Butterfly Nut), DIN 315 by Milo

CC-DIN315-DS-M4 revA Size datasheet - M4

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DIN 315 M4 wing nut, rounded wings

Size datasheet: this size's values with their levels, conventions and sources.

Thread M4 x 0.7, ISO metric coarse, right hand Part key din315-m4 = Files 2 STEP AP214 (simplified + iy iE i tended) Simplified - M4, front view, 2:1 Threaded - M4, front view, 2:1 Sym. Dimension Value Level

P Thread pitch 0.7 L1- 3

e Wing span 19 La - 3 18-20

h Overall height 9.5 L1- 3 8.5-10.5

m Boss height 3.9 L1- 3 3.2-4.6

d2 Boss foot diameter 7 L1- 3 6-8

d3 Boss top diameter 6.25 L1- 2 5.5-7

gl Wing thickness at the top 1.5 La - 3 1.1-1.9

g2 Wing thickness at the root 2.0 L1- 2 1.7-2.3

ri Wing lobe radius 3 ref L1- 2

r3 Wing root radius (front) 0.5 ref L1- 2

ra Wing root radius (plan) 2 ref La + 2

D1 Basic minor diameter (crests) 3.2422 L1-2

Modeled value: nominal, else the midpoint of min-max. ref: the standard's approximate radius, modeled as given. * amber: one source (LO). c: a source value was corrected. Level - independent sources. The wing outline joins the values by a house construction (sheet DO2).

DIN 315:1998 - ISO 68-1/ ISO 261 (thread) Page 1/2 Wing nut - M4 - both detail levels - Dimensions in mm - CC-BY 4.0, lronPixel Labs LLC spec acdf428c50c2166d020400a0cbdcc023c2d1118e

Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.

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CC-DIN315-DS-M4 revA Size datasheet - M4

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Conventions

¢ Boss: a straight cone from d2 at the bearing face to d3 at m, flat on top.

« Wing outline: lobes of r1 touching e/2 and h; outer flanks tangent from the boss's foot, inner flanks from the top of the boss with r3 at the flat. Not specified by the standard.

+ Wing faces: planes, g2 at the bearing face to g1 at h. Plan-view blends r4 at the boss, illustrative. Not specified by the standard.

« Wing edges sharp (r2: 'rounded', no value at this size; pending the owner).

« Bore: plain at D through the boss (simplified); ISO 68-1 basic internal thread over the full boss height (threaded). No countersink.

« No markings. Features the standard does not dimension are house conventions.

Sources

Source Publisher Retrieved sha256

amesweb-tap-drill AMESweb 2026-10-23 e6501cc1414a

pule-basic-minor CommunityCAD 2026-10-23 00329692204

fasten-it-din315 fasten.it 2026-11-04 e9297F1d86b3

fasteners-eu-din315 fasteners.eu 2026-11-04 3484efb42413

krepcom-din315 Krepcom (translation by MALUKPEME)K) 2026-11-04 3416687e78a8 (kept outside the repo)

The whole series (verification map, drawings): CC-DIN315-Ds.

DIN 315:1998 - ISO 68-1/ ISO 261 (thread) Page 2/2 Wing nut - M4 - both detail levels - Dimensions in mm - CC-BY 4.0, lronPixel Labs LLC spec acdf428c50c2166d020400a0cbdcc023c2d1118e

Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.

Original PDF

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