Library › Hardware › Camera tripod thread bosses: 1/4-20 UNC and 3/8-16 UNC
3/8-16 UNC female boss section, Unified basic profile
3/8-16 UNC female boss section, Unified basic profile: minor Ø7.806, pitch Ø8.494, major Ø9.525, 12.700 long (8 turns), outside Ø22 (same as the core-hole boss)
Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.
STEP STL free, Xem Studio Design License — Xem Studio
Dimensions
| thread | 3/8-16 UNC |
|---|---|
| major Ø (mm) | 9.52 |
| core hole Ø (mm) | 8.25 |
| boss (my design) | Ø22 × 12, hole 10 deep |
| from | DIN 4503-1 / ISO 1222 (Threading Tools Guide) |
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Camera tripod thread bosses: 1/4-20 UNC and 3/8-16 UNC: every size, notes, mating features and sources. What thread is a camera tripod screw?