Clevis Pin
Pins · clevis bolt · headed pin
Definition: A clevis pin is a headed, unthreaded pin with a cross-hole for a cotter pin, used to make a simple pivoting or fixed joint in a clevis.
Anatomy
■ Shank■ Chamfered ends
Governing standards: ASME B18.8.1
Common Sizes
| Inch | Metric | Head width | Head height |
|---|---|---|---|
| 1/4 | M6 | 7/16 head | 1–4 usable |
| 3/8 | M10 | 5/8 head | 1–5 usable |
| 1/2 | M12 | 13/16 head | 1–6 usable |
Representative sizes. Full dimensional data lives in the standards listed below.
Grades & Strength
| Grade | Material | Tensile (psi) | Marking |
|---|---|---|---|
| Steel | zinc-plated steel | — | None |
| Stainless | 304 stainless | — | None |
Materials
- Zinc-plated steel
- Stainless steel
Pros & Cons
Pros
- Simple, strong shear capacity
- Quick to remove with a cotter pin
- Inexpensive
Cons
- Retainer (cotter pin) can be lost
- Slop/wear in the joint over time
- Not for axial (pull-out) loads
Typical Uses
- Linkages and control rods
- Trailer and towing connections
- Agricultural machinery
- Pivot joints
Alternatives & Related
- Cotter Pin — The retainer that secures the clevis pin
- Shoulder Bolt — Precision pivot with a threaded retainer
Where to Buy
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FAQ
What is a clevis pin used for?
Pivot and linkage connections — hitches, control linkages, and machinery where you want a simple, removable pin joint retained by a cotter pin.
How do you measure a clevis pin?
Measure the shank diameter and the usable length under the head. The cross-hole takes a cotter pin matched to the hole diameter.