Pins, Clips & Retaining Rings
400+ products
Expected delivery: Wed, Nov 18
Pins, clips and retaining rings locate parts, hold shafts in place and keep linkages together on trailers, farm equipment, conveyors, gearboxes and machine guards. This section includes cotter pins, clevis pins, hitch pins, hair pin (R) clips, quick release pins, dowel pins, slotted and coiled spring (roll) pins, lynch pins, and internal and external retaining rings, sometimes called snap rings or circlips.
What to check before you order
- Diameter and length. Pins are sized by nominal diameter and usable length. Measure the hole and the grip length through all parts.
- Pin type. Dowel pins are precision ground for exact location. Roll pins compress to hold by spring tension in a drilled hole and tolerate a looser fit.
- Retaining ring style. External rings fit a groove on a shaft and internal rings fit a groove in a bore. Check the groove diameter, not just the shaft size.
- Tools. Most ring styles need retaining ring pliers with the correct tip size to install and remove them safely.
- Material. Zinc-plated steel is common. Stainless suits outdoor and washdown equipment.
Common questions
Can I reuse a cotter pin?
It is good practice to use a new cotter pin each time. Bending the legs fatigues the metal, and a reused pin can break.
Browse the full fasteners category, washers, or hooks, shackles and eye bolts.
Popular pins, clips & retaining rings
- Approved Vendor 1/16"x1" 18-8 Stainless Steel Dowel Pins SKU 1996 $0.45
- Approved Vendor 1/16"x1" Dowel Pins Thru Hardened Alloy, Plain SKU 13840 $0.72
- Approved Vendor 1/16"x1-1/2" Dowel Pins Thru Hardened Alloy, Plain SKU 13841 $1.38
- Approved Vendor 1/16"x1-1/8" Dowel Pins Thru Hardened Alloy, Plain SKU 13842 $1.24
- Approved Vendor 1/16"x1/2" 18-8 Stainless Steel Dowel Pins SKU 1992 $0.36
- Approved Vendor 1/16"x1/2" Dowel Pins Thru Hardened Alloy, Plain SKU 13843 $0.56
- Approved Vendor 1/16"x1/4" 18-8 Stainless Steel Dowel Pins SKU 1988 $0.34
- Approved Vendor 1/16"x1/4" Dowel Pins Thru Hardened Alloy, Plain SKU 13844 $0.46
- Approved Vendor 1/16"x3/16" 18-8 Stainless Steel Dowel Pins SKU 1987 $0.33
- Approved Vendor 1/16"x3/16" Dowel Pins Thru Hardened Alloy, Plain SKU 13845 $0.52
- Approved Vendor 1/16"x3/4" 18-8 Stainless Steel Dowel Pins SKU 1994 $0.40
- Approved Vendor 1/16"x3/4" Dowel Pins Thru Hardened Alloy, Plain SKU 13846 $0.63
- Approved Vendor 1/16"x3/8" 18-8 Stainless Steel Dowel Pins SKU 1990 $0.35
- Approved Vendor 1/16"x3/8" Dowel Pins Thru Hardened Alloy, Plain SKU 13847 $0.51
- Approved Vendor 1/16"x5/16" 18-8 Stainless Steel Dowel Pins SKU 1989 $0.34
- Approved Vendor 1/16"x5/16" Dowel Pins Thru Hardened Alloy, Plain SKU 13848 $0.47
- Approved Vendor 1/16"x5/8" 18-8 Stainless Steel Dowel Pins SKU 1993 $0.37
- Approved Vendor 1/16"x5/8" Dowel Pins Thru Hardened Alloy, Plain SKU 13849 $0.60
- Approved Vendor 1/16"x7/16" 18-8 Stainless Steel Dowel Pins SKU 1991 $0.35
- Approved Vendor 1/16"x7/16" Dowel Pins Thru Hardened Alloy, Plain SKU 13850 $0.54
- Approved Vendor 1/16"x7/8" 18-8 Stainless Steel Dowel Pins SKU 1995 $0.43
- Approved Vendor 1/16"x7/8" Dowel Pins Thru Hardened Alloy, Plain SKU 13851 $0.69
- Approved Vendor 1/16x1" Stainless Steel Extended Prong Cotter Pin SKU 858 $0.13
- Approved Vendor 1/16x1" Steel Extended Prong Cotter Pin Zinc SKU 13854 $0.04
- Approved Vendor 1/16x1-1/2" Stainless Steel Extended Prong Cotter Pin SKU 859 $0.15
- Approved Vendor 1/16x1-1/2" Steel Extended Prong Cotter Pin Zinc SKU 13855 $0.12
- Approved Vendor 1/16x1/2" Stainless Steel Extended Prong Cotter Pin SKU 856 $0.08
- Approved Vendor 1/16x1/2" Steel Extended Prong Cotter Pin Zinc SKU 13856 $0.09
- Approved Vendor 1/16x3/4" Stainless Steel Extended Prong Cotter Pin SKU 857 $0.09
- Approved Vendor 1/16x3/4" Steel Extended Prong Cotter Pin Zinc SKU 13857 $0.04
- Approved Vendor 1/2" X 1-1/2" Clevis Pin Low Carbon Steel Plain SKU 14596 $5.31
- Approved Vendor 1/2" X 1-1/2" Clevis Pin Low Carbon Steel Zinc SKU 14597 $6.32
- Approved Vendor 1/2" X 1-1/2" Clevis Pin Stainless Steel SKU 14598 $28.24
- Approved Vendor 1/2" X 1-3/4" Clevis Pin Low Carbon Steel Zinc SKU 14604 $6.54
- Approved Vendor 1/2" X 1/16" HSS Shank Type Keyeat Woodruff Cutter SKU 14607 $35.99
- Approved Vendor 1/2" X 1/8" HSS Shank Type Keyeat Woodruff Cutter SKU 14627 $35.99
- Approved Vendor 1/2" X 2" Clevis Pin Low Carbon Steel Plain SKU 14649 $6.33
- Approved Vendor 1/2" X 2" Clevis Pin Low Carbon Steel Zinc SKU 14650 $7.27
- Approved Vendor 1/2" X 2-1/2" Clevis Pin Stainless Steel SKU 14655 $40.41
- Approved Vendor 1/2" X 3/32" HSS Shank Type Keyeat Woodruff Cutter SKU 14667 $35.99
- Approved Vendor 1/2"x1" .001 Oversize Dowel Pins, Alloy Steel, Plain SKU 15111 $7.19
- Approved Vendor 1/2"x1" 18-8 Stainless Steel Dowel Pins SKU 2059 $7.28
- Approved Vendor 1/2"x1" Dowel Pins Thru Hardened Alloy, Plain SKU 15112 $4.36
- Approved Vendor 1/2"x1" Pull-out Dowel Pins, Alloy Steel, Plain SKU 15113 $6.84
- Approved Vendor 1/2"x1-1/2" .001 Oversize Dowel Pins, Alloy Steel, Plain SKU 15115 $8.67
- Approved Vendor 1/2"x1-1/2" 18-8 Stainless Steel Dowel Pins SKU 2061 $9.11
- Approved Vendor 1/2"x1-1/4" 18-8 Stainless Steel Dowel Pins SKU 2060 $8.30
- Approved Vendor 1/2"x1-1/4" Pull-out Dowel Pins, Alloy Steel, Plain SKU 15120 $7.24