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5 1/4 inch length Hex Cap Screws (ASME B18. 2.1)

Hex Cap Screws are hex headed fasteners with external machine screw threads and differ from hex machine bolts by having a washer surface on the underside or bearing side of the head and a chamfered thread end. Hex cap screws have tighter dimensional tolerances than bolts. Metric hex cap screws are specified by various DIN, ISO and JIS standards, and US/Imperial hex cap screws are dimensionally specified by the ASME B18.2.1 specification.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
Irwin IndOntHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 5 1/43/8-16 x 5-1/4 steel grade 5 hhcs zinc trivalent clear b18.2.1150
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OptimasILHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 5 1/45/8-11x5-1/4 asme b18.2.1 hex cap screw grade 5 zinc triv 120/144hr ss rohs(p)7420
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GLFOHHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 5 1/45/8-11x5-1/4 hhcs grade 5 stl zc b18.2.1 () () ()9
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BIG BOLTILHex Head Cap ScrewGrade 5Plain1-14 x 5 1/4bolt & c/s hex str/b (a325 a490 )b18.2.11170
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GLFOHHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 5 1/41/2-13x5-1/4 hhcs grade 5 stl zc b18.2.1 () () ()75
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BIG BOLTILHex Head Cap ScrewGrade BPlain3/4-10 x 5 1/4bolt & c/s heavy h/b (b7 b8 a307b etc.)square b18.2.11510
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GLFOHHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 5 1/43/4-10x5-1/4 hhcs grade 5 stl zc b18.2.1 () () ()8
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AbabaCAHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 5 1/41/2-13 x 5-1/4 h/c gr 5 znc b18.2.120
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ASMCILHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 5 1/4(pt) coarse hex c/s ss18-8 b18.2.120
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ASMCILHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 5 1/43/8-16x5 1/4 (pt) coarse gr8 hex cap screw-usa alloy yz b18.2.1175
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XL ScrewGAHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 5 1/4hex c/s SAE j429 zyd asme b18.2.1130
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XL ScrewGAHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 5 1/4hex c/s SAE j429 zp asme b18.2.1130
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XL ScrewGAHex Head Cap ScrewGrade 5Zinc/Clear1-8 x 5 1/4hex c/s SAE j429 zp asme b18.2.130
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XL ScrewGAHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 5 1/4hex c/s SAE j429 zyd asme b18.2.1250
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XL ScrewGAHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 5 1/4hex c/s SAE j429 zp asme b18.2.1250
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XL ScrewGAHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 5 1/4hex c/s SAE j429 zp asme b18.2.180
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QFCTXHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 5 1/43/8-16x5 1/4 hex c/s gr5 zinc b18.2.128
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QFCTXHex Head Cap ScrewGrade 5Plain3/8-16 x 5 1/43/8-16x5-1/4 hex cap screw grade 5 plain b18.2.12769
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B & K FASTPAHex Head Cap ScrewGrade 5Plain1/2-20 x 5 1/41/2-20 x 5 1/4 hex cap screws gr 5 plain b18.2.145
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B & K FASTPAHex Head Cap ScrewGrade 5Plain1-8 x 5 1/41-8 x 5 1/4 hex cap screws gr 5 plain b18.2.13
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B & K FASTPAHex Head Cap ScrewGrade 8Plain3/4-16 x 5 1/43/4-16 x 5 1/4 hex cap screws gr 8 plain b18.2.113
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Clear5/8-11 x 5 1/45/8-11 x 5 1/4 hex cap screws gr 8 zinc b18.2.12
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 5 1/45/8-11 x 5 1/4 hex cap screws gr 5 zinc b18.2.11
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear7/16-20 x 5 1/47/16-20 x 5 1/4 hex cap screws gr 5 zinc b18.2.18
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OSSCORIHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 5 1/45/16-18x5-1/4 hex cap screw grade 5 plated b18.2.123
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OSSCORIHex Head Cap ScrewGrade B7Plain7/8-9 x 5 1/47/8-9x5-1/4 hex cap screw b-7 b18.2.13
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QFCTXHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 5 1/43/8-16 x 5-1/4 hex cap screw grade 8 zinc yellow b18.2.13
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Bostwick INHex Head Cap Screw316, 317, A4 StainlessPlain5/8-11 x 5 1/45/8-11 x 5 1/4 hex cap screw 316 stainless b18.2.19
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APIIAHex Head Cap ScrewGrade 8Zinc/Clear1/2-13 x 5 1/4screw hhc p/t gr8 zncl ansi b18.2.1965
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APIIAHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 5 1/4screw hhc p/t zncl gr5 ansi b18.2.1777
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Pac FasTXHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 5 1/41/2-13 x 5-1/4 hex cap screw grade 8 (sae j429) coarse zinc yellow b18.2.1inquire
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Pac FasTXHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 5 1/41/2-13 x 5-1/4 hex cap screw grade 5 (sae j429) coarse zinc b18.2.1inquire
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Pac FasTXHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 5 1/43/8-16 x 5-1/4 hex cap screw grade 8 (sae j429) coarse zinc yellow b18.2.1201
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Pac FasTXHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 5 1/43/8-16 x 5-1/4 hex cap screw grade 5 (sae j429) coarse zinc b18.2.13
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Pac FasTXHex Head Cap ScrewGrade 8Zinc/Yellow5/8-11 x 5 1/45/8-11 x 5-1/4 hex cap screw grade 8 (sae j429) coarse zinc yellow b18.2.126
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THRDFASTOKHex Head Cap ScrewGrade 2Plain1 1/4-7 x 5 1/4gr2 hex c/s b18.2.14
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THRDFASTALHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 5 1/4gr5 hex c/s b18.2.153
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KBSTNHex Head Cap ScrewGrade 8Plain1/2-13 x 5 1/41/2-13 x 5 1/4 hex cap/s alloy gr-8 b18.2.1410
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THRDFASTMSHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 5 1/4gr8 hex c/s z&y b18.2.127
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KBSTNHex Head Cap ScrewGrade 8Plain1/4-20 x 5 1/41/4-20 x 5 1/4 hex cap/s alloy gr-8 b18.2.1598
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THRDFASTMSHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 5 1/4gr5 hex c/s b18.2.12
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THRDFASTFLHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 5 1/4gr5 hex c/s b18.2.17
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KBSTNHex Head Cap ScrewGrade 8Plain3/8-16 x 5 1/43/8-16 x 5 1/4 hex cap/s alloy gr-8 b18.2.1451
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