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1 1/4 inch length Cotter Pins (ASME B18. 8.1)

Split Pins, also known as Cotter Keys, or Cotter Pins, are “U” shaped metal engineered fasteners with two tines that are inserted into a hole during installation and bent to stop the cotter pin from coming out of the hole.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
BHAMALCotter Pin (Split Pin)BrassPlain3/16 x 1 1/43/16x1 1/4 brass cotter pin b18.8.12498
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AbabaCACotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/41/8 x 1 1/4 cotter pin stl znc b18.8.1870
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AbabaCACotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/41/8 x 1 1/4 hammerlock cotter pins stl znc b18.8.13391
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AbabaCACotter Pin (Split Pin)SteelPlain3/16 x 1 1/43/16 x 1 1/4 cotter pin stl pln b18.8.1243
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AbabaCACotter Pin (Split Pin)SteelZinc/Clear1/4 x 1 1/41/4 x 1 1/4 cotter pin stl znc b18.8.1150
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AbabaCACotter Pin (Split Pin)SteelZinc/Clear3/32 x 1 1/43/32 x 1 1/4 cotter pin stl znc b18.8.1555
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AbabaCACotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/8 x 1 1/41/8 x 1 1/4 cotter pin s/s b18.8.1309
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AbabaCACotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/32 x 1 1/45/32 x 1 1/4 cotter pin s/s b18.8.1200
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GLFOHCotter Pin (Split Pin)SteelZinc/Clear3/32 x 1 1/43/32x1-1/4 cotter pin stl zc b18.8.1 () () ()1540
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GLFOHCotter Pin (Split Pin)316, 317, A4 StainlessPlain1/8 x 1 1/41/8x1-1/4 cotter pin 316 s/s b18.8.1 () () ()25
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GLFOHCotter Pin (Split Pin)316, 317, A4 StainlessPlain3/32 x 1 1/43/32x1-1/4 cotter pin 316 s/s b18.8.1 () () ()150
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GLFOHCotter Pin (Split Pin)SteelPlain1/8 x 1 1/4cotter pin MS24665-372 b18.8.1 () () ()365
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GLFOHCotter Pin (Split Pin)SteelPlain1/16 x 1 1/4cotter pin MS24665-157 b18.8.1 () () ()653
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GLFOHCotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/41/8x1-1/4 cotter pin stl zc b18.8.1 () () ()412
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GLFOHCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/8 x 1 1/41/8x1-1/4 cotter pin s/s b18.8.1 () () ()746
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GLFOHCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/32 x 1 1/43/32x1-1/4 cotter pin s/s b18.8.1 () () ()2834
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AbabaCACotter Pin (Split Pin)SteelZinc/Clear3/16 x 1 1/43/16 x 1 1/4 cotter pin steel zinc b18.8.1150
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Irwin IndOntCotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/41/8 x 1 1/4 cotter pins steel zinc trivalent clear b18.8.11477
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ASMCILCotter Pin (Split Pin)SteelZinc/Clear5/32 x 1 1/45/32x1 1/4 cotter pin low carb zp b18.8.1700
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SIIINCotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/41/8 x1-1/4 zinc cotter pin) b18.8.11361
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JET FITTINGCACotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/8 x 1 1/41/8x1 1/4 cotter pin 18-8 ss 1-CP-12-125 b18.8.13137
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JET FITTINGCACotter Pin (Split Pin)SteelPlain3/32 x 1 1/43/32x1 1/4 cotter pins extended pr 260220 b18.8.11800
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JET FITTINGCACotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/41/8x1 1/4 cotter pin stl zinc b18.8.11761
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StandardMACotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/16 x 1 1/43/16x1-1/4 cotter pin 18-8 stainless steel b18.8.119773
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StandardMACotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/32 x 1 1/43/32x1-1/4 cotter pin 18-8 stainless steel b18.8.18300
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StandardMACotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/64 x 1 1/47/64x1-1/4 cotter pin 18-8 stainless steel b18.8.17115
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StandardMACotter Pin (Split Pin)Silicon BronzePlain5/32 x 1 1/45/32x1-1/4 cotter pin silicon bronze b18.8.1250
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StandardMACotter Pin (Split Pin)BrassPlain3/32 x 1 1/43/32x1-1/4 cotter pin brass b18.8.12645
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StandardMACotter Pin (Split Pin)Silicon BronzePlain1/8 x 1 1/41/8x1-1/4 cotter pin silicon bronze b18.8.1933
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StandardMACotter Pin (Split Pin)Ni-Cu Alloy (Monel, K-Monel, etc.)Plain5/32 x 1 1/45/32x1-1/4 cotter pin monel b18.8.1235
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StandardMACotter Pin (Split Pin)BrassPlain1/16 x 1 1/41/16x1-1/4 cotter pin brass b18.8.11548
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StandardMACotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 1 1/41/4x1-1/4 cotter pin 18-8 stainless steel b18.8.1168
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StandardMACotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/16 x 1 1/41/16x1-1/4 cotter pin 18-8 stainless steel b18.8.122029
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StandardMACotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/64 x 1 1/43/64x1-1/4 cotter pin 18-8 stainless steel b18.8.1700
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StandardMACotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/64 x 1 1/45/64x1-1/4 cotter pin 18-8 stainless steel b18.8.110200
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StandardMACotter Pin (Split Pin)BrassPlain5/32 x 1 1/45/32x1-1/4 cotter pin brass b18.8.1268
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QFCTXCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/8 x 1 1/41/8x1 1/4 cotter pin 18-8 b18.8.1191
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QFCTXCotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/41/8x1 1/4 cotter pin zinc b18.8.1457
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QFCTXCotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/41/8x1 1/4 cotter pin zinc b18.8.12700
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QFCTXCotter Pin (Split Pin)SteelZinc/Clear5/32 x 1 1/45/32x1 1/4 cotter pin zinc b18.8.150
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B & K FASTPACotter Pin (Split Pin)AluminumPlain1/8 x 1 1/41/8 x 1 1/4 cotter pins alum b18.8.12088
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B & K FASTPACotter Pin (Split Pin)SteelPlain1/8 x 1 1/41/8 x 1 1/4 cotter pins plain b18.8.16234
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B & K FASTPACotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/32 x 1 1/45/32 x 1 1/4 cotter pins 18-8 stainless b18.8.1252
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B & K FASTPACotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/16 x 1 1/43/16 x 1 1/4 cotter pins 18-8 stainless b18.8.1123
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Marine FastenersFLCotter Pin (Split Pin)316, 317, A4 StainlessPlain1/8 x 1 1/41/8x1 1/4 cotter pin 316 ss 316ss b18.8.14900
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Marine FastenersFLCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/32 x 1 1/45/32x1-1/4 cotter pin s/s b18.8.125990
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Marine FastenersFLCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/8 x 1 1/41/8x1-1/4 cotter pin 18-8 ss 100 per small bag 5 small bags per master pack-generic brand b18.8.112500
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Marine FastenersFLCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/32 x 1 1/45/32x1-1/4 cotter pin 18-8 ss 50 per small bag 5 small bags per master pack-generic brand b18.8.19400
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Marine FastenersFLCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/32 x 1 1/43/32x1-1/4 cotter pin 18-8 ss 100 per small bag 5 small bags per master pack-generic brand b18.8.114000
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Marine FastenersFLCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/16 x 1 1/41/16x1-1/4 cotter pin 18-8 ss 100 per small bag 5 small bags per master pack-generic brand b18.8.130700
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Marine FastenersFLCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/16 x 1 1/41/16 x 1-1/4 cotter pin ss b18.8.117700
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OSSCORICotter Pin (Split Pin)SteelPlain1/8 x 1 1/41/8x1 1/4 cotter pin b18.8.1209
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OSSCORICotter Pin (Split Pin)SteelPlain5/32 x 1 1/45/32x1 1/4 cotter pin b18.8.110,366
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OSSCORICotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/16 x 1 1/43/16x1 1/4 cotter pin 18-8 304 b18.8.154
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OSSCORICotter Pin (Split Pin)SteelZinc/Clear3/16 x 1 1/43/16x1 1/4 cotter pin plated b18.8.1130
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OSSCORICotter Pin (Split Pin)SteelZinc/Clear1/4 x 1 1/41/4x1 1/4 cotter pin plated b18.8.115
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OSSCORICotter Pin (Split Pin)SteelPlain1/16 x 1 1/41/16x1 1/4 cotter pin b18.8.11,525
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OSSCORICotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/32 x 1 1/43/32x1 1/4 cotter pin 18-8 304 b18.8.12,929
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OSSCORICotter Pin (Split Pin)SteelZinc/Clear1/32 x 1 1/41/32x1 1/4 cotter pin plated b18.8.1455
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QFCTXCotter Pin (Split Pin)SteelPlain1/8 x 1 1/41/8x1 1/4 cotter pin plain b18.8.145
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QFCTXCotter Pin (Split Pin)SteelZinc/Clear3/32 x 1 1/43/32x1 1/4 cotter pin zinc b18.8.11700
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Bostwick INCotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/41/8 x 1 1/4 cotter pin hammer lock zinc b18.8.1424
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JET FITTINGCACotter Pin (Split Pin)SteelCadmium/Yellow1/16 x 1 1/41/16x1-1/4 cotter pin steel cadmium ii yellow b18.8.11265
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JET FITTINGCACotter Pin (Split Pin)SteelZinc/Clear3/32 x 1 1/4pin cotter 3/32x1-1/4 steel zinc plated b18.8.11300
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WurthOntCotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/4pin cot st (zn) 1/8x1 1/4 b18.8.1500
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JET FITTINGCACotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/41/8x1 1/4 cotter pins extended prong-chisel point low carbon steel zinc plated quantity 2000 b18.8.11900
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JET FITTINGCACotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/8 x 1 1/4pin cotter 1/8x1-1/4 ss rohs compliant asme b18.8.1 b18.8.1620
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THRDFASTFLCotter Pin (Split Pin)SteelZinc/Clear5/16 x 1 1/4 b18.8.11,179
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THRDFASTFLCotter Pin (Split Pin)BrassPlain1/16 x 1 1/4 b18.8.1600
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THRDFASTFLCotter Pin (Split Pin)BrassPlain1/8 x 1 1/4 b18.8.1486
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THRDFASTFLCotter Pin (Split Pin)SteelPlain3/16 x 1 1/4 b18.8.1456
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THRDFASTFLCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 1 1/418-8 ss b18.8.178
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THRDFASTFLCotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/4 b18.8.125
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THRDFASTFLCotter Pin (Split Pin)SteelZinc/Clear3/32 x 1 1/4 b18.8.1156
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THRDFASTTNCotter Pin (Split Pin)SteelZinc/Clear3/16 x 1 1/4 b18.8.1100
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THRDFASTMSCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/16 x 1 1/418-8 ss b18.8.136
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KBSTNCotter Pin (Split Pin)SteelZinc/Clear1/32 x 1 1/41/32 x 1 1/4 cotter pin plated b18.8.1200
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THRDFASTFLCotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/4 b18.8.1100
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THRDFASTMSCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/8 x 1 1/418-8 ss b18.8.136
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THRDFASTMSCotter Pin (Split Pin)SteelZinc/Clear3/32 x 1 1/4 b18.8.143
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THRDFASTMSCotter Pin (Split Pin)SteelZinc/Clear1/8 x 1 1/4 b18.8.140
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THRDFASTALCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/16 x 1 1/418-8 ss b18.8.158
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THRDFASTALCotter Pin (Split Pin)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4 x 1 1/418-8 ss b18.8.1166
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THRDFASTMSCotter Pin (Split Pin)SteelZinc/Clear1/16 x 1 1/4 b18.8.180
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WSBKYCotter Pin (Split Pin)SteelPlain1/8 x 1 1/4pin cot st (pl) 1/8x1 1/4 b18.8.11,815
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All SizeTXCotter Pin (Split Pin)SteelPlain5/64 x 1 1/45/64 x 1-1/4 cotter pin b18.8.1990
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All SizeTXCotter Pin (Split Pin)SteelPlain1/4 x 1 1/41/4 x 1 1/4 cotter pin b18.8.1122
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All SizeTXCotter Pin (Split Pin)SteelPlain5/32 x 1 1/45/32 x 1 1/4 cotter pin b18.8.11,100
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