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Hairpin Cotter Pin

Retaining pins keep a shaft or clevis pin from sliding out. Cotter pins are bent open after fitting, R-clips and hairpin cotters snap over a groove for tool-free removal.

  • 218 sizes・201 in stock
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Hairpin Cotter Pin

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Zinc Plated Carbon Steel Cotter PinZinc Plated Carbon Steel Cotter Pin87 sizes・81 in stockSS304 Cotter PinSS304 Cotter Pin93 sizes・85 in stockSS316 Cotter PinSS316 Cotter Pin2 sizes・1 in stockZinc Plated Carbon Steel R-ClipZinc Plated Carbon Steel R-Clip16 sizes・16 in stockSS304 R-ClipSS304 R-Clip11 sizes・10 in stockStainless Steel Hairpin Cotter Pin (Curved Leg)Stainless Steel Hairpin Cotter Pin (Curved Leg)9 sizes・8 in stock

How to choose

Zinc-plated steel Low cost, the default for machinery and trailers.
304 stainless Rust free outdoors.
316 stainless Chloride resistant, marine use.
SS304 Cotter Pin size chart (93 sizes)Zinc Plated Cotter Pin size chart (86 sizes)Zinc Plated R-Clip size chart (16 sizes)SS304 R-Clip size chart (11 sizes)SS304 Hairpin Cotter Pin size chart (9 sizes)

All items

218 items, grouped by type. Tap a group to expand.

Zinc Plated Carbon Steel Cotter Pin87 items
Zinc Plated Cotter Pin 1*10Zinc Plated Cotter Pin 1.5*10 (1/16"*3/8")Zinc Plated Cotter Pin 1.5*12 (1/16"*1/2")Zinc Plated Cotter Pin 1.5*15 (1/16"*5/8")Zinc Plated Cotter Pin 1.5*20 (1/16"*3/4")Zinc Plated Cotter Pin 1.5*25 (1/16"*1")Zinc Plated Cotter Pin 1.5*30 (1/16"*1-1/4")Zinc Plated Cotter Pin 1.5*38 (1/16"*1-1/2")Zinc Plated Cotter Pin 1.5*45 (1/16"*1-3/4")Zinc Plated Cotter Pin 1.5*50 (1/16"*2")Zinc Plated Cotter Pin 10*100 (3/8"*4")Zinc Plated Cotter Pin 10*125 (3/8"*5")Zinc Plated Cotter Pin 10*150 (3/8"*6")Zinc Plated Cotter Pin 10*38 (3/8"*1-1/2")Zinc Plated Cotter Pin 10*50 (3/8"*2")Zinc Plated Cotter Pin 10*65 (3/8"*2-1/2")Zinc Plated Cotter Pin 10*75 (3/8"*3")Zinc Plated Cotter Pin 12*100 (1/2"*4")Zinc Plated Cotter Pin 12*125 (1/2"*5")Zinc Plated Cotter Pin 12*150 (1/2"*6")Zinc Plated Cotter Pin 12*200 (1/2"*8")Zinc Plated Cotter Pin 2*12Zinc Plated Cotter Pin 2*20Zinc Plated Cotter Pin 2*25Zinc Plated Cotter Pin 2*30Zinc Plated Cotter Pin 2.3*12 (3/32"*1/2")Zinc Plated Cotter Pin 2.3*15 (3/32"*5/8")Zinc Plated Cotter Pin 2.3*20 (3/32"*3/4")Zinc Plated Cotter Pin 2.3*25 (3/32"*1")Zinc Plated Cotter Pin 2.3*30 (3/32"*1-1/4")Zinc Plated Cotter Pin 2.3*38 (3/32"*1-1/2")Zinc Plated Cotter Pin 2.3*45 (3/32"*1-3/4")Zinc Plated Cotter Pin 2.3*50 (3/32"*2")Zinc Plated Cotter Pin 2.3*65 (3/32"*2-1/2")Color Zinc Plated Cotter Pin 20*130Zinc Plated Cotter Pin 3*12 (1/8"*1/2")Zinc Plated Cotter Pin 3*15 (1/8"*5/8")Zinc Plated Cotter Pin 3*20 (1/8"*3/4")Zinc Plated Cotter Pin 3*25 (1/8"*1")Zinc Plated Cotter Pin 3*30 (1/8"*1-1/4")Zinc Plated Cotter Pin 3*38 (1/8"*1-1/2")Zinc Plated Cotter Pin 3*45 (1/8"*1-3/4")Zinc Plated Cotter Pin 3*50 (1/8"*2")Zinc Plated Cotter Pin 3*65 (1/8"*2-1/2")Zinc Plated Cotter Pin 3*75 (1/8"*3")Zinc Plated Cotter Pin 4*100 (5/32"*4")Zinc Plated Cotter Pin 4*20 (5/32"*3/4")Zinc Plated Cotter Pin 4*25 (5/32"*1")Zinc Plated Cotter Pin 4*30 (5/32"*1-1/4")Zinc Plated Cotter Pin 4*38 (5/32"*1-1/2")Zinc Plated Cotter Pin 4*45 (5/32"*1-3/4")Zinc Plated Cotter Pin 4*50 (5/32"*2")Zinc Plated Cotter Pin 4*65 (5/32"*2-1/2")Zinc Plated Cotter Pin 4*75 (5/32"*3")Zinc Plated Cotter Pin 4*90 (5/32"*3-1/2")Zinc Plated Cotter Pin 5*100 (3/16"*4")Zinc Plated Cotter Pin 5*20 (3/16"*3/4")Zinc Plated Cotter Pin 5*25 (3/16"*1")Zinc Plated Cotter Pin 5*30 (3/16"*1-1/4")Zinc Plated Cotter Pin 5*38 (3/16"*1-1/2")…see all 87 items →
SS304 Cotter Pin93 items
SS304 Cotter Pin 1*10SS304 Cotter Pin 1*12SS304 Cotter Pin 1*15SS304 Cotter Pin 1*20SS304 Cotter Pin 1*25SS304 Cotter Pin 1*6SS304 Cotter Pin 1*8SS304 Cotter Pin 1.5*10 (1/16"*3/8")SS304 Cotter Pin 1.5*12 (1/16"*1/2")SS304 Cotter Pin 1.5*15 (1/16"*5/8")SS304 Cotter Pin 1.5*20 (1/16"*3/4")SS304 Cotter Pin 1.5*25 (1/16"*1")SS304 Cotter Pin 1.5*30 (1/16"*1-1/4")SS304 Cotter Pin 1.5*38 (1/16"*1-1/2")SS304 Cotter Pin 1.5*50 (1/16"*2")SS304 Cotter Pin 1.5*8 (1/16"*5/16")SS304 Cotter Pin 10*100 (3/8"*4")SS304 Cotter Pin 10*125 (3/8"5")SS304 Cotter Pin 10*150 (3/8"6")SS304 Cotter Pin 10*175 (3/8"*7")SS304 Cotter Pin 10*38(3/8"*1-1/2")SS304 Cotter Pin 10*50 (3/8"*2")SS304 Cotter Pin 10*65 (3/8"*2-1/2")SS304 Cotter Pin 10*75 (3/8"*3")SS304 Cotter Pin 10*90(3/8"*3-1/2")SS304 Cotter Pin 12*120SS304 Cotter Pin 12*140SS304 Cotter Pin 16*160SS304 Cotter Pin 16*90SS304 Cotter Pin 2.3*12 (3/32"*1/2")SS304 Cotter Pin 2.3*15 (3/32"*5/8")SS304 Cotter Pin 2.3*20 (3/32"*3/4")SS304 Cotter Pin 2.3*25 (3/32"*1")SS304 Cotter Pin 2.3*30 (3/32"*1-1/4")SS304 Cotter Pin 2.3*38 (3/32"*1-1/2")SS304 Cotter Pin 2.3*45 (3/32"*1-3/4")SS304 Cotter Pin 2.3*50 (3/32"*2")SS304 Cotter Pin 2.3*65 (3/32"*2-1/2")SS304 Cotter Pin 20*160SS304 Cotter Pin 20*180SS304 Cotter Pin 20*200SS304 Cotter Pin 3*12 (1/8"*1/2")SS304 Cotter Pin 3*15 (1/8"*5/8")SS304 Cotter Pin 3*20 (1/8"*3/4")SS304 Cotter Pin 3*25 (1/8"*1")SS304 Cotter Pin 3*30 (1/8"*1-1/4")SS304 Cotter Pin 3*38 (1/8"*1-1/2")SS304 Cotter Pin 3*45 (1/8"*1-3/4")SS304 Cotter Pin 3*50 (1/8"*2")SS304 Cotter Pin 3*65 (1/8"*2-1/2")SS304 Cotter Pin 3*75 (1/8"*3")SS304 Cotter Pin 3.5*30SS304 Cotter Pin 3.5*35SS304 Cotter Pin 4*20 (5/32"*3/4")SS304 Cotter Pin 4*25 (5/32"*1")SS304 Cotter Pin 4*30 (5/32"*1-1/4")SS304 Cotter Pin 4*38 (5/32"*1-1/2")SS304 Cotter Pin 4*45 (5/32"*1-3/4")SS304 Cotter Pin 4*50 (5/32"*2")SS304 Cotter Pin 4*65 (5/32"*2-1/2")…see all 93 items →
SS316 Cotter Pin2 items
SS316 Cotter Pin 4*75 (5/32"*3")SS316 Cotter Pin 5*80 (3/16"*3-1/4")Open the full page for this type →
Zinc Plated Carbon Steel R-Clip16 items
Zinc Plated R-Clip 1*16 (R-4)Zinc Plated R-Clip 1*19 (R-5)Zinc Plated R-Clip 1.2*21 (R-6)Zinc Plated R-Clip 1.6*28 (R-8)Zinc Plated R-Clip 1.8*32 (R-10)Zinc Plated R-Clip 1.8*36 (R-12)Zinc Plated R-Clip 2*43 (R-16)Zinc Plated R-Clip 2*43.8 (SSP-16)Zinc Plated R-Clip 2.3*42 (R-18)Zinc Plated R-Clip 3*75 (R-6#)Zinc Plated R-Clip 3.2*50 (R-20)Zinc Plated R-Clip 3.5*75Zinc Plated R-Clip 3.8*75 (R-25)Zinc Plated R-Clip 4.5*98 (R-35)Zinc Plated R-Clip 5*112 (R-45)Zinc Plated R-Clip 6*123 (R-55)Open the full page for this type →
SS304 R-Clip11 items
SS304 R-Clip 1*16 (R-4)SS304 R-Clip 1*19 (R-5)SS304 R-Clip 1.2*21 (R-6)SS304 R-Clip 1.6*28 (R-8)SS304 R-Clip 1.8*32 (R-10)SS304 R-Clip 1.8*36 (R-12)SS304 R-Clip 2*43 (R-16)SS304 R-Clip 2.3*42 (R-18)SS304 R-Clip 3.2*50 (R-20)SS304 R-Clip 4.5*98 (R-35)SS304 R-Clip 6*123Open the full page for this type →
Stainless Steel Hairpin Cotter Pin (Curved Leg)9 items
SS304 Hairpin Cotter Pin M10SS304 Hairpin Cotter Pin M12SS304 Hairpin Cotter Pin M3SS304 Hairpin Cotter Pin M4SS304 Hairpin Cotter Pin M5SS304 Hairpin Cotter Pin M6SS304 Hairpin Cotter Pin M7SS304 Hairpin Cotter Pin M8SS304 Hairpin Cotter Pin M9Open the full page for this type →

Also known as / standards: Hairpin Cotter · Hitch Pin · Bridge Pin · ISO1234 · DIN94 · SPLIT PIN · JIS B 1351 · CNS 398 · ASME B18.8.200M · R CLIP · SPRING COTTER · DIN 11024 · JIS B 1360 · HAIRPIN CLIP

Standards: ISO 1234 · DIN 94 · JIS B 1351 · CNS 398 · ASME B18.8.200M · DIN 11024 · JIS B 1360