Product and application brief
Clevis pins are used in fork-and-eye or similar pivot connections. The shank passes through the mating parts; head and retention details distinguish the selected construction. They are not ordinary threaded bolts, and the cross-hole or retaining groove needs to be specified separately from the pin diameter.
Product forms and reference names
| Product form / field | Reference and distinguishing details |
|---|---|
| Headed clevis pin — ISO 2341 reference | ISO 2341:1986 identifies clevis pins with a head. Its official abstract distinguishes type A without a split-pin hole and type B with one; do not assume every headed form is cross-drilled. |
| Headless clevis pin — ISO 2340 reference | ISO 2340:1986 identifies clevis pins without a head. Its official abstract also distinguishes type A without split-pin holes and type B with them. Select the exact drawing and retention details, not only the family name. |
| Hole-retained construction | Pivot Point describes transverse shank holes for cotter-type retaining parts. Provide the hole diameter and its position from a stated datum, along with the separately identified retainer. |
| Groove-retained or drawing-defined construction | Pivot Point distinguishes machined retaining grooves from transverse holes. Groove geometry and clip selection follow the specific drawing; a groove is not automatically an ISO type B split-pin hole. |
Head, shank and retaining feature
Identify headed or headless form, head geometry where present and the smooth shank dimensions. A cross-drilled hole, a retaining groove and a ball-detent mechanism are different features. This page covers ordinary clevis-pin identification, not the separately listed quick-release family.
Usable length versus overall length
Provide overall length and the required assembled grip or usable length with their reference points. For a headed pin, show the head underside and the hole or groove position on the drawing. Clarify whether a quoted dimension ends at a hole centre, an edge or the tip; those measurements should not be substituted for one another.
Mating parts and retaining components
State the mating-part thicknesses, hole diameters and fit requirements, plus the intended retainer and any washer. Pin and retaining-part quantities should be separate line items unless an explicitly defined set is requested. No universal fit or installation procedure is prescribed here.
Standards and supply boundary
ISO references identify headed/headless families and hole forms, not actual supply conformity. Full normative dimensions, tolerances, material requirements and national-standard interchangeability have not been verified here. Confirm the exact standard and edition or controlled drawing before selecting a replacement.
Specification fields
| Product form / field | Reference and distinguishing details |
|---|---|
| Product identity | Headed/headless, exact standard and edition, type A/B where applicable, or controlled drawing/part number. |
| Shank and fit | Shank diameter and tolerance requirement; mating-hole dimensions and intended assembly fit separately. |
| Head and end | Head diameter/thickness and underside details where present; end chamfer or other drawing-defined features. |
| Length definitions | Overall, under-head or usable/grip length as required; label the datum and endpoint for every length. |
| Hole or groove | Feature count, diameter or groove geometry, location and relevant tolerances on the selected drawing. |
| Retainer and washers | Separate retaining-part and washer identity, size and quantity, or exact set composition if requested. |
| Material and finish | Exact material designation, required condition and surface requirements; appearance is not hardness or corrosion evidence. |
| Quantity and documents | Quantity in pieces for each pin size and retaining component, drawing revision, inspection/traceability and marking or packing requirements. |
Common product questions
Does every clevis pin have a head and a cross-hole?
No. ISO 2340 identifies headless forms and ISO 2341 identifies headed forms. The official abstracts distinguish forms without and with split-pin holes. State both head and retention details.
Is overall length the same as usable or grip length?
Not necessarily. Head thickness and the location of a retaining hole or groove affect the relevant assembly dimensions. Provide the drawing datum and endpoint for each requested length.
Can a groove-retained pin replace a hole-retained pin?
Not automatically. The retaining component and its geometry differ. Compare the pin drawing, clip or cotter requirements and mating assembly rather than replacing one feature by name alone.
Related specification resources
Product references
References checked 6 October 2026 explain product identity. Third-party model names and approvals are not FastenerBridge brand affiliation, stock or certification claims. Final geometry and requirements follow the selected specification.