Skip Content

Want to pay an invoice? Please call us at 1-800-GRAINGER (1-800-472-4643).

Filter Results By

Branch Availability
Material
Finish
Pin Dia.
Length
Brand
Price
Shop By

Cotter Pins

1,067 Results Found that Include 1,067 Products

Results per page:  16 | 32 | 48
Cotter Pin,Hairpin,1/8"Dx2-9/16" L,PK25
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 1/8"Dx2-9/16" L, PK25 Cotter Pin,Hairpin,1/8"Dx2-9/16" L,PK25
  • Item # 2UJP1
  • Mfr. Model # 2UJP1
  • Cotter Pin, Hairpin, Steel, Finish Zinc, Pin Dia. 0.125 In, Length 2 9/16 In, Fits Shaft Dia. 7/16 to 3/4 In,...More

Cotter Pin,Hairpin,1/32"Dx7/16" L,PK25
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 1/32"Dx7/16" L, PK25 Cotter Pin,Hairpin,1/32"Dx7/16" L,PK25
  • Item # 2UJK2
  • Mfr. Model # 2UJK2
  • Cotter Pin, Hairpin, Steel, Finish Zinc, Pin Dia. 0.032 In, Length 7/16 In, Fits Shaft Dia. 7/64 to 9/64 In,...More

Cotter Pin,Hairpin,1/16"Dx1-5/16" L,PK25
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 1/16"Dx1-5/16" L, PK25 Cotter Pin,Hairpin,1/16"Dx1-5/16" L,PK25
  • Item # 2UJL1
  • Mfr. Model # 2UJL1
  • Cotter Pin, Hairpin, Steel, Finish Zinc, Pin Dia. 0.062 In, Length 1 5/16 In, Fits Shaft Dia. 1/4 to 1/2 In,...More

Cotter Pin,Hairpin,11/64"Dx3-1/2" L,PK10
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 11/64"Dx3-1/2" L, PK10 Cotter Pin,Hairpin,11/64"Dx3-1/2" L,PK10
  • Item # 2UJR3
  • Mfr. Model # 2UJR3
  • Cotter Pin, Hairpin, Steel, Finish Zinc, Pin Dia. 0.177 In, Length 3 1/2 In, Fits Shaft Dia. 7/8 to 1 In,...More

Cotter Pin,Hairpin,3/64"Dx3/4" L,PK25
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 3/64"Dx3/4" L, PK25 Cotter Pin,Hairpin,3/64"Dx3/4" L,PK25
  • Item # 2UJK7
  • Mfr. Model # 2UJK7
  • Cotter Pin, Hairpin, Steel, Finish Zinc, Pin Dia. 0.054 In, Length 3/4 In, Fits Shaft Dia. 3/16 to 1/4 In,...More

Cotter Pin,Hairpin,0.178"Dx3-3/4" L,PK25
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 0.178"Dx3-3/4" L, PK25 Cotter Pin,Hairpin,0.178"Dx3-3/4" L,PK25
  • Item # 2MVK1
  • Mfr. Model # 21-08
  • Finish Zinc, Hairpin, Length 3-3/4 In., Package Quantity 25, Fits Shaft Dia. 7/8 to 1 In., Meets/Exceeds...More

Cotter Pin,Hairpin,11/64"Dx3-3/4" L,PK10
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 11/64"Dx3-3/4" L, PK10 Cotter Pin,Hairpin,11/64"Dx3-3/4" L,PK10
  • Item # 2UJR4
  • Mfr. Model # 2UJR4
  • Cotter Pin, Hairpin, Steel, Finish Zinc, Pin Dia. 0.177 In, Length 3 3/4 In, Fits Shaft Dia. 7/8 to 1-1/4 In,...More

Cotter Pin,Hairpin,5/64"Dx1-3/16" L,PK25
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 5/64"Dx1-3/16" L, PK25 Cotter Pin,Hairpin,5/64"Dx1-3/16" L,PK25
  • Item # 2UJL6
  • Mfr. Model # 2UJL6
  • Cotter Pin, Hairpin, Steel, Finish Zinc, Pin Dia. 0.080 In, Length 1 3/16 In, Fits Shaft Dia. 1/4 to 3/8 In,...More

Cotter Pin,Hairpin,9/64"Dx3-5/16" L,PK10
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 9/64"Dx3-5/16" L, PK10 Cotter Pin,Hairpin,9/64"Dx3-5/16" L,PK10
  • Item # 1BBF2
  • Mfr. Model # WWG-BPS-209
  • Cotter Pin, Hairpin, 18-8 Stainless Steel, Plain Finish, Pin Dia 0.148 In, Length 3 5/16 In, Fits Shaft Dia...More

Cotter Pin,Hairpin,11/64"Dx3" L,PK10
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 11/64"Dx3" L, PK10 Cotter Pin,Hairpin,11/64"Dx3" L,PK10
  • Item # 2UJP8
  • Mfr. Model # 2UJP8
  • Cotter Pin, Hairpin, Steel, Finish Zinc, Pin Dia. 0.162 In, Length 3 In, Fits Shaft Dia. 1/2 to 1 In,...More

Cotter Pin,Hairpin,1/8"Dx2-3/8" L,PK25
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 1/8"Dx2-3/8" L, PK25 Cotter Pin,Hairpin,1/8"Dx2-3/8" L,PK25
  • Item # 2MVK7
  • Mfr. Model # 22-071
  • Cotter Pin, Hairpin, 18-8 Stainless Steel, Finish Plain, Pin Dia. 0.120 In, Length 2 3/8 In, Fits Shaft Dia....More

Cotter Pin,Ext Prong,42377Dx3" L,PK500
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Ext Prong, 42377Dx3" L, PK500 Cotter Pin,Ext Prong,42377Dx3" L,PK500
  • Item # 2UHR2
  • Mfr. Model # 2UHR2
  • Cotter Pin, Extended Prong, Carbon Steel, Finish Zinc, Pin Dia. 0.125 In, Length 3 In, Meets/Exceeds...More

Cotter Pin,Ext Prong,1/4"Dx4" L,PK25
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Ext Prong, 1/4"Dx4" L, PK25 Cotter Pin,Ext Prong,1/4"Dx4" L,PK25
  • Item # 41JY83
  • Mfr. Model # U51700.025.0400
  • Extended Prong, Length 4 In., Package Quantity 25, Meets/Exceeds ASME B18.8.1, Pin Dia. 1/4 In., Cotter Pin,...More

Cotter Pin,Ext Prong,1/8"Dx1" L,PK100
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Ext Prong, 1/8"Dx1" L, PK100 Cotter Pin,Ext Prong,1/8"Dx1" L,PK100
  • Item # 2WZR6
  • Mfr. Model # 03-125-1000
  • Cotter Pin, Extended Prong, 18-8 Stainless Steel, Finish Plain, Pin Dia. 1/8 In, Length 1 In, Meets/Exceeds...More

Cotter Pin,Ext Prong,5/32"Dx2" L,PK100
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Ext Prong, 5/32"Dx2" L, PK100 Cotter Pin,Ext Prong,5/32"Dx2" L,PK100
  • Item # 2WZJ6
  • Mfr. Model # 00-156-2000-P
  • Cotter Pin, Extended Prong, Low Carbon Steel, Finish Zinc Plated, Pin Dia. 5/32 In, Length 2 In,...More

Cotter Pin,HammLock,1/8"Dx1-1/2" L,PK100
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, HammLock, 1/8"Dx1-1/2" L, PK100 Cotter Pin,HammLock,1/8"Dx1-1/2" L,PK100
  • Item # 2WZX4
  • Mfr. Model # 2WZX4
  • Cotter Pin, Hammerlock, Low Carbon Steel, Finish Zinc Plated, Pin Dia. 1/8 In, Length 1 1/2 In, Meets/Exceeds...More

Cotter Pin,Hairpin,1/32"Dx19/32" L,PK100
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 1/32"Dx19/32" L, PK100 Cotter Pin,Hairpin,1/32"Dx19/32" L,PK100
  • Item # 2MVJ3
  • Mfr. Model # 21-01
  • Finish Zinc, Hairpin, Length 19/32 In., Package Quantity 100, Fits Shaft Dia. 1/8 In., Meets/Exceeds...More

Cotter Pin,1.6mmDx10mm L,SS A2,PK25
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, 1.6mmDx10mm L, SS A2, PK25 Cotter Pin,1.6mmDx10mm L,SS A2,PK25
  • Item # 41KT04
  • Mfr. Model # M51700.016.0010
  • Pin, Cotter, Stainless Steel A2, Finish Plain, Dia. 1.6mm, Length (In.) 10mm, Number of Sizes 1, Number of...More

Cotter Pin,Ext Prong,7/64"Dx3/4" L,PK100
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Ext Prong, 7/64"Dx3/4" L, PK100 Cotter Pin,Ext Prong,7/64"Dx3/4" L,PK100
  • Item # 41JY35
  • Mfr. Model # U51700.010.0075
  • Extended Prong, Length 3/4 In., Package Quantity 100, Meets/Exceeds ASME B18.8.1, Pin Dia. 7/64 In., Cotter...More

Cotter Pin,Ext Prong,3/32"Dx3/4" L,PK100
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Ext Prong, 3/32"Dx3/4" L, PK100 Cotter Pin,Ext Prong,3/32"Dx3/4" L,PK100
  • Item # 2UHL7
  • Mfr. Model # 2UHL7
  • Cotter Pin, Extended Prong, Carbon Steel, Finish Zinc, Pin Dia. 0.094 In, Length 3/4 In, Meets/Exceeds...More

Cotter Pin,Ext Png,3/32"Dx1-1/2" L,PK100
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Ext Png, 3/32"Dx1-1/2" L, PK100 Cotter Pin,Ext Png,3/32"Dx1-1/2" L,PK100
  • Item # 2UHN2
  • Mfr. Model # 2UHN2
  • Cotter Pin, Extended Prong, Carbon Steel, Finish Zinc, Pin Dia. 0.094 In, Length 1 1/2 In, Meets/Exceeds...More

Cotter Pin,Ext Prong,1/4"Dx4" L,PK25
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Ext Prong, 1/4"Dx4" L, PK25 Cotter Pin,Ext Prong,1/4"Dx4" L,PK25
  • Item # 2WZN1
  • Mfr. Model # 00-250-4000-P
  • Cotter Pin, Extended Prong, Low Carbon Steel, Finish Zinc Plated, Pin Dia. 1/4 In, Length 4 In, Meets/Exceeds...More

Cotter Pin,Hairpin,1/4"Dx4" L,PK10
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 1/4"Dx4" L, PK10 Cotter Pin,Hairpin,1/4"Dx4" L,PK10
  • Item # 2UJR5
  • Mfr. Model # 2UJR5
  • Cotter Pin, Hairpin, Steel, Finish Zinc, Pin Dia. 0.243 In, Length 4 In, Fits Shaft Dia. 3/4 to 1 In,...More

Cotter Pin,Ext Prong,1/4"Dx4" L,PK50
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Ext Prong, 1/4"Dx4" L, PK50 Cotter Pin,Ext Prong,1/4"Dx4" L,PK50
  • Item # 2WZN2
  • Mfr. Model # 2WZN2
  • Cotter Pin, Extended Prong, Low Carbon Steel, Finish Zinc Plated, Pin Dia. 1/4 In, Length 4 In, Meets/Exceeds...More

Cotter Pin,Hairpin,1/8"Dx2-3/8" L,PK50
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 1/8"Dx2-3/8" L, PK50 Cotter Pin,Hairpin,1/8"Dx2-3/8" L,PK50
  • Item # 2MVJ8
  • Mfr. Model # 21-06
  • Finish Zinc, Hairpin, Length 2-3/8 In., Package Quantity 50, Fits Shaft Dia. 1/2 to 5/8 In., Meets/Exceeds...More

Cotter Pin,Ext Prong,5/16"Dx2" L,PK50
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Ext Prong, 5/16"Dx2" L, PK50 Cotter Pin,Ext Prong,5/16"Dx2" L,PK50
  • Item # 2WZN3
  • Mfr. Model # 00-312-2000-P
  • Cotter Pin, Extended Prong, Low Carbon Steel, Finish Zinc Plated, Pin Dia. 5/16 In, Length 2 In,...More

Cotter Pin,Hairpin,0.125Dx2-9/16" L,PK10
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 0.125Dx2-9/16" L, PK10 Cotter Pin,Hairpin,0.125Dx2-9/16" L,PK10
  • Item # 3DYT5
  • Mfr. Model # 3DYT5
  • Cotter Pin, Hairpin, 316 Stainless, Finish Plain, Pin Dia. 0.125 In, Length 2.562 In, Fits Shaft Dia. 7/16 In...More

Cotter Pin,Hairpin,11/64"Dx3-1/4 L,PK10
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 11/64"Dx3-1/4 L, PK10 Cotter Pin,Hairpin,11/64"Dx3-1/4 L,PK10
  • Item # 2UJR1
  • Mfr. Model # 2UJR1
  • Cotter Pin, Hairpin, Steel, Finish Zinc, Pin Dia. 0.177 In, Length 3 1/4, Fits Shaft Dia. 5/8 to 1 In,...More

Cotter Pin,Hairpin,3/64"Dx1" L,PK25
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Hairpin, 3/64"Dx1" L, PK25 Cotter Pin,Hairpin,3/64"Dx1" L,PK25
  • Item # 2UJK4
  • Mfr. Model # 2UJK4
  • Cotter Pin, Hairpin, Steel, Finish Zinc, Pin Dia. 0.042 In, Length 1 In, Fits Shaft Dia. 3/16 to 1/4 In,...More

Cotter Pin,Ext Png,3/16"Dx1-1/2" L,PK250
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Ext Png, 3/16"Dx1-1/2" L, PK250 Cotter Pin,Ext Png,3/16"Dx1-1/2" L,PK250
  • Item # 2WZK2
  • Mfr. Model # 00-187-1500-P
  • Cotter Pin, Extended Prong, Low Carbon Steel, Finish Zinc Plated, Pin Dia. 3/16 In, Length 1 1/2 In,...More

Cotter Pin,Ext Png,3/16"Dx1-1/2" L,PK100
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Ext Png, 3/16"Dx1-1/2" L, PK100 Cotter Pin,Ext Png,3/16"Dx1-1/2" L,PK100
  • Item # 2WZT7
  • Mfr. Model # 03-187-1500
  • Cotter Pin, Extended Prong, 18-8 Stainless Steel, Finish Plain, Pin Dia. 3/16 In, Length 1 1/2 In,...More

Cotter Pin,Extended Prong,1/2"Dx4" L,PK5
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Cotter Pin, Extended Prong, 1/2"Dx4" L, PK5 Cotter Pin,Extended Prong,1/2"Dx4" L,PK5
  • Item # 2UHV8
  • Mfr. Model # 2UHV8
  • Cotter Pin, Extended Prong, Carbon Steel, Finish Zinc, Pin Dia. 0.500 In, Length 4 In, Meets/Exceeds...More

Results per page:  16 | 32 | 48

Use cotter pins to lock a castle nut or secure a clevis pin. A cotter pin is easy to install and remove and is commonly used to secure a wheel or machine component on an axle. A split pin has two long tines that are bent to hold it in place. Hairpin clips, also called r clips, are designed to slip on with no bending required. Keep Grainger cotter pins on hand for speedy maintenance and repair of wheels and rotary machinery.

Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order. More