Clevises with M3 tapped shank: Ø3, Ø5 and Ø6 pins, 5 to 12 mm gaps — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/clevises/  (CC BY 4.0)
Basis: Fork with a cross pin hole at the pin Ø and a gap equal to the link thickness; Ø8 shank boss tapped M3 (Ø2.5 tap drill)
Catalog version: 2026-10-20

Sizes: see table below
- A fork 18 long × 12 tall with two 4 mm tines; the gap between the tines is the link thickness and the cross hole is the pin Ø, 6 mm in from the open end at mid-height.
- A Ø8 × 10 shank boss on the closed end carries a Ø2.5 hole 10 deep, the M3 tap drill, for a threaded pushrod. Every file is 28 long overall.
- Sizes: Ø3 pin with a 5 or 8 mm gap; Ø5 pin with 8 or 10; Ø6 pin with 12. Width across the tines is gap + 8 (13, 16, 16, 18, 20).

file  pin hole Ø  gap  width  length  height  shank
clevis-3-gap5  3  5  13  28  12  Ø8, M3 tap Ø2.5 × 10
clevis-3-gap8  3  8  16  28  12  Ø8, M3 tap Ø2.5 × 10
clevis-5-gap8  5  8  16  28  12  Ø8, M3 tap Ø2.5 × 10
clevis-5-gap10  5  10  18  28  12  Ø8, M3 tap Ø2.5 × 10
clevis-6-gap12  6  12  20  28  12  Ø8, M3 tap Ø2.5 × 10

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Wikipedia: Clevis fastener — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Clevis_fastener
- Wikipedia: Universal joint — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Universal_joint
- Wikipedia: Rod end bearing — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/Rod_end_bearing
- McMaster-Carr: Clevis pins (free STEP per part, for your own design use; no redistribution) — STEP, PDF — McMaster-Carr site terms [verify license at link] — https://www.mcmaster.com/products/clevis-pins/
- McMaster-Carr: Rod ends (free STEP per part, for your own design use; no redistribution) — STEP, PDF — McMaster-Carr site terms [verify license at link] — https://www.mcmaster.com/products/ball-joint-rod-ends/
- Long Earth Society: Engine and rig builds — web, video — LES site — https://longearthsociety.com/engineering/

Free files (CC BY 4.0, Xem Studio; STEP + STL, 5 parts): https://xemstudio.com/files/hardware/clevises/index.json
API: https://xemstudio.com/api/geometry?object=clevises