Cotter Pins

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Cotter pins are designed to act as a locking mechanism in nuts & bolts (with a hole) for a secure fit, even if the nut loosens. Raptor Supplies offers a wide range of cotter hairpins in...Read more

APPROVED VENDOR -

Retaining Cotter Pins

StyleModelPin Dia.MaterialFinishFor Shaft Dia.Price (inc. VAT)Pkg. Qty.
AWWG-BPS-2191/4"Stainless SteelPlain3/4" to 1"£7.551
BWWG-BP-2351/4"Carbon SteelZinc Plated1 1/4" to 1 1/2"£52.9810
AWWG-BPS-2161/8"Stainless SteelPlain1/2" to 3/4"£21.7625
B1PVN31/8"Carbon SteelZinc Plated1/2" to 5/8"£7.0425
AWWG-BPS-2271/8"Stainless SteelPlain5/8" to 7/8"£16.4810
AWWG-BPS6-2161/8"Stainless SteelPlain1/2" to 3/4"£16.2010
AWWG-BPS6-2271/8"Stainless SteelPlain5/8" to 7/8"£24.7910
AWWG-BPS-2111/8"Stainless SteelPlain7/16" to 3/4"£31.9825
AWWG-BPS6-2221/16"Stainless SteelPlain1/4" to 1/2"£20.4525
AWWG-BPS-2221/16"Stainless SteelPlain1/4" to 1/2"£26.5350
AWWG-BPS-2311/32"Stainless SteelPlain1/8" to 5/32"£12.6550
AWWG-BPS-2033/32"Stainless SteelPlain1/4" to 1/2"£25.6550
AWWG-BPS-2073/32"Stainless SteelPlain1/4" to 5/8"£29.6550
AWWG-BPS-2143/32"Stainless SteelPlain3/8" to 3/4"£18.3125
AWWG-BPS6-2033/32"Stainless SteelPlain1/4" to 1/2"£14.1925
AWWG-BPS-2233/64"Stainless SteelPlain3/16" to 1/4"£18.5450
AWWG-BPS-2323/64"Stainless SteelPlain1/16" to 1/8"£15.96100
AWWG-BPS-2243/64"Stainless SteelPlain1/4" to 3/8"£40.5750
AWWG-BPS-2215/16"Stainless SteelPlain1/8" to 3/16"£11.1150
AWWG-BPS6-2175/64"Stainless SteelPlain3/8" to 1/2"£17.3725
AWWG-BPS-2135/64"Stainless SteelPlain1/4" to 3/8"£19.7850
AWWG-BPS6-2135/64"Stainless SteelPlain1/4" to 3/8"£13.5425
AWWG-BPS-2175/64"Stainless SteelPlain3/8" to 1/2"£29.8250
AWWG-BPS-2099/64"Stainless SteelPlain3/4" to 1 1/8"£18.6210
AWWG-BPS6-20611/64"Stainless SteelPlain5/8" to 1"£19.755
ITW BEE LEITZKE -

Extended Prong Cotter Pins

StyleModelPin TypePin Dia.MaterialFinishFor Shaft Dia.Price (inc. VAT)Pkg. Qty.
AU51700.018.0400-3/16"Stainless SteelPlain-£67.9725
BWWG-CPS-033-5/32"Stainless SteelPlain-£27.19100
BWWG-CPS-044-1/4"Stainless SteelPlain-£27.7425
B2UJF5-5/16"BrassPlain-£136.6025
BWWG-CPS-041-1/4"Stainless SteelPlain-£39.1750
B2UJF2-1/4"BrassPlain-£50.0110
BWWG-CPS-039-3/16"Stainless SteelPlain-£30.0250
B2UJE9-1/4"BrassZinc Plated-£69.8225
BWWG-CPS-037-3/16"Stainless SteelPlain-£20.1650
B2UJE6-3/16"BrassZinc Plated-£46.9225
BWWG-CPP-028-1/2"Low Carbon SteelPlain-£15.535
B2UJE3-3/16"BrassZinc Plated-£30.5425
B2UJG2-3/8"BrassPlain-£249.3325
BWWG-CPS-031-5/32"Stainless SteelPlain-£23.31100
B2UJD9-5/32"BrassZinc Plated-£55.7150
BWWG-CPS-029-1/8"Stainless SteelPlain-£26.16100
B2UJD7-5/32"BrassZinc Plated-£64.8750
BWWG-CPP-023-3/8"Low Carbon SteelPlain-£19.4625
BWWG-CPS-023-3/32"Stainless SteelPlain-£9.92100
BWWG-CPP-021-5/16"Low Carbon SteelPlain-£18.5825
B2UJC7-1/8"BrassZinc Plated-£39.12100
BWWG-CPS-019-1/16"Stainless SteelPlain-£6.11100
B2UJA2-1/16"BrassZinc Plated-£30.88100
B2UJG1-3/8"BrassZinc Plated-£271.0525
CWWG-CPHZ-008-3/32"Low Carbon SteelZinc Plated-£4.62100
APPROVED VENDOR -

Hairpin Cotter Pins

StyleModelPin Dia.MaterialFinishFor Shaft Dia.Pin TypePrice (inc. VAT)Pkg. Qty.
A3DYT20.091"Stainless SteelZinc Plated5/16" to 1/2"-£8.2325
B2UJR51/4"SteelZinc Plated3/4" to 1"-£24.2410
CWWG-BP-21091/4"SteelZinc Plated1 1/8" to 1 1/2"-£23.3910
D3DYT51/8"Stainless SteelPlain7/16" to 3/4"-£26.5410
B2UJP21/8"SteelZinc Plated3/4" to 1 1/8"-£13.5325
B2UJN71/8"SteelZinc Plated1/2" to 3/4"-£9.5425
B2UJP11/8"SteelZinc Plated7/16" to 3/4"-£11.2525
B2UJN81/8"SteelZinc Plated1/2" to 3/4"-£8.4325
B2UJP31/8"SteelZinc Plated3/4" to 1 1/8"-£7.6410
B2UJN91/8"SteelZinc Plated5/8" to 7/8"-£12.9125
B2UJL11/16"SteelZinc Plated1/4" to 1/2"-£5.6725
B2UJL21/16"SteelZinc Plated3/8" to 1/2"-£7.1625
B2UJK11/32"SteelZinc Plated1/8" to 5/32"-£2.9625
E2UJR61/32"Stainless SteelZinc Plated1/4"-£42.45100
B2UJK21/32"SteelZinc Plated7/64" to 9/64"-£2.7025
FWWG-BPXZ-23093/32"SteelZinc Plated3/4"-£25.64100
D3DYT33/32"Stainless SteelZinc Plated1/4" to 5/8"-£29.2225
B2UJL93/32"SteelZinc Plated3/8" to 1/2"-£7.8225
B2UJN43/32"SteelZinc Plated1/4" to 5/8"-£6.1225
B2UJN23/32"SteelZinc Plated1/4" to 1/2"-£5.2825
B2UJL83/32"SteelZinc Plated5/16" to 3/8"-£4.7425
B2UJN13/32"SteelZinc Plated1/4" to 1/2"-£5.7825
B2UJN33/32"SteelZinc Plated1/4" to 1/2"-£8.5325
B2UJN53/32"SteelZinc Plated3/8" to 3/4"-£7.6225
B2UJK83/64"SteelZinc Plated1/4" to 3/8"-£5.0025
APPROVED VENDOR -

Hammerlock Cotter Pins

StyleModelPin Dia.MaterialFinishPin TypePrice (inc. VAT)Pkg. Qty.
AU39351.012.00501/8"Low Carbon SteelZinc Plated-£4.06100
AWWG-CPHZ-023-LZ1/8"Low Carbon SteelZinc Plated-£158.506
BM55970.032.00012.8 mmStainless SteelPlainHairpin£27.085
BM39630.030.00013 mmSteelZinc PlatedHairpin£11.5010
BM55970.040.00013.6 mmStainless SteelPlainHairpin£47.365
A2UJJ43/16"SteelZinc Plated-£239.27100
AWWG-CPHZ-0123/32"Low Carbon SteelZinc Plated-£6.06100
BM55970.050.00014.5 mmStainless SteelPlainHairpin£76.265
AB39351.015.01755/32"Low Carbon SteelZinc Plated-£672.342
A2UJH87/64"SteelZinc Plated-£123.01100
BM39630.090.00018 mmSteelZinc PlatedHairpin£10.651
REMCO -

Cotter Pin

ModelItemPrice (inc. VAT)Pkg. Qty.
RP6953CM7RCD£0.301
See Details

Cotter Pins

Cotter pins are designed to act as a locking mechanism in nuts & bolts (with a hole) for a secure fit, even if the nut loosens. Raptor Supplies offers a wide range of cotter hairpins in plain and zinc finish variants, from brands like ITW Bee Leitzke, GL Huyett and Texas Pneumatic Tools.

Frequently Asked Questions

What is the difference between split pins and cotter pins?

  • Cotter pins are constructed of mild steel and are suitable for locking nuts at their position. These pins are inserted into the hole of the bolt and are then bent into various shapes to stop the nut from falling out.
  • Split pins are constructed of heavy-duty steel and are inserted once into the hole to lock the nut.

How can we install a cotter pin?

  • Connect the castle nut to the bolt and tighten it into position.
  • Mark the bolt or leave the castle pin in position.
  • Drill a hole straight through the bolt's cross-section with a drill bit at the marked point. A metal punch can be used to create a starting point.
  • Insert the cotter pin after removing any metal filings from the hole.
  • Bend the cotter pin ends away from each other with pliers so that the cotter pin does not come out of the hole.

How can we remove cotter pins?

It is extremely simple to remove a cotter pin. Use pliers to bend the pin's arms back straight enough to fit through the hole. If the pin is worn out, these arms might simply snap off and the rounded eye portion can be easily removed and replaced with a new one.

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