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4 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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GLFOHHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 4 1/41/2-13x4-1/4 hhcs grade 8 stl zy asme b18.2.1 b18.2.1 () () ()4199,000
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GLFOHHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 4 1/43/4-10x4-1/4 hhcs grade 5 stl zc b18.2.1 () () ()65,000
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GLFOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 4 1/43/8-16x4-1/4 hhcs grade 5 stl zc b18.2.1 () () ()166,000
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GLFOHHex Head Cap ScrewGrade 8Zinc/Yellow5/8-11 x 4 1/45/8-11x4-1/4 hhcs grade 8 stl zy b18.2.1 () () ()8054,000
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Alma BoltMIHex Head Cap ScrewGrade 5Zinc/Clear7/8-9 x 4 1/47/8-9 X 4 1/4 GRADE 5 HCS ZP b18.2.146
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OptimasILHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 4 1/41/2-13x4-1/4 asme b18.2.1 hex cap screw grade 5 zinc triv rohs compliant8500
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OptimasILHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 4 1/43/8-16x4-1/4 asme b18.2.1 hex cap screw grade 5 zinklad 250 (p)22139
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BIG BOLTILHex Head Cap ScrewGrade BPlain1 1/2-6 x 4 1/4bolt & c/s heavy h/b (b7 b8 a307b etc.)b18.2.1393
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AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 4 1/41/2-13 x 4 1/4 h/c gr 8 yellow zinc b18.2.113
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AbabaCAHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 4 1/41/2-13 x 4 1/4 h/c gr 5 znc b18.2.1105
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AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow1/4-28 x 4 1/41/4-28 x 4 1/4 inch h/c dom gr 8 yel znc b18.2.13
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AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 4 1/43/8-16 x 4 1/4 inch h/c dom gr 8 yel znc b18.2.1167
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AbabaCAHex Head Cap ScrewGrade 8Plain3/8-16 x 4 1/43/8-16 x 4 1/4 h/c gr 8 zii b18.2.14
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AbabaCAHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 4 1/43/8-16 x 4 1/4 h/c gr 5 znc b18.2.175
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ASMCILHex Head Cap Screw316, 317, A4 StainlessPlain3/8-16 x 4 1/43/8-16x4 1/4 (pt) unc hex cap screw ss316 b18.2.125
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ASMCILHex Head Cap ScrewGrade 8Zinc/Yellow5/8-11 x 4 1/45/8-11x4 1/4 (pt) coarse gr8 hex cap screw-usa alloy yz b18.2.1175
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AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 4 1/43/8-16 x 4 1/4 inch h/c dom gr 8 yel znc b18.2.175
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XL ScrewGAHex Head Cap ScrewGrade 5Zinc/Clear1 1/4-7 x 4 1/4hex c/s SAE j429 zp asme b18.2.120
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XL ScrewGAHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 4 1/4hex c/s SAE j429 zyd asme b18.2.1180
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XL ScrewGAHex Head Cap ScrewGrade 5Zinc/Clear1-8 x 4 1/4hex c/s SAE j429 zp asme b18.2.135
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XL ScrewGAHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 4 1/4hex c/s SAE j429 zp asme b18.2.170
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XL ScrewGAHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 4 1/4hex c/s SAE j429 zyd asme b18.2.1300
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XL ScrewGAHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 4 1/4hex c/s SAE j429 zp asme b18.2.1300
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XL ScrewGAHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 4 1/4hex c/s SAE j429 zyd asme b18.2.1450
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XL ScrewGAHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 4 1/4hex c/s SAE j429 zp asme b18.2.1450
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XL ScrewGAHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 4 1/4hex c/s SAE j429 zp asme b18.2.1100
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XL ScrewGAHex Head Cap ScrewGrade 5Zinc/Clear7/8-9 x 4 1/4hex c/s SAE j429 zp asme b18.2.150
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Wink FastVAHex Head Cap Screw316, 317, A4 StainlessPlain5/8-11 x 4 1/4316 (a4) ss hex c/s 5/8-11x4-1/4 per asme b18.2.1115
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StandardMAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 4 1/41/2-13x4-1/4 hex cap screw 18-8 stainless steel b18.2.11143
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General FMIHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 4 1/45/8-11x4.25 hhcs grade 5 zn b18.2.11530
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General FMIHex Head Cap ScrewGrade 8Zinc/Yellow5/8-11 x 4 1/45/8-11x4.25 hhcs grade 8 zidi b18.2.13690
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QFCTXHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 4 1/41/2-13x4 1/4 hex c/s gr8 y/zinc b18.2.171
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QFCTXHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 4 1/41/2-13x4 1/4 hex c/s gr5 zinc b18.2.125
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QFCTXHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 4 1/41/2-13x4 1/4 hex c/s gr5 zinc b18.2.141
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QFCTXHex Head Cap ScrewGrade 5Plain1/2-13 x 4 1/41/2-13x4 1/4 hex cap screw grade 5 copper b18.2.126
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QFCTXHex Head Cap ScrewSteelGalvanized1 x 4 1/41x4-1/4 a325-1 hvy hex cap screw hdg dom. b18.2.1250
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QFCTXHex Head Cap ScrewSteelGalvanized1 x 4 1/41x4-1/4 a325-1 hvy hex cap screw hdg dom. b18.2.1110
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QFCTXHex Head Cap ScrewSteelGalvanized1 x 4 1/41x4-1/4 a325-1 hvy hex cap screw hdg dom. b18.2.1566
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QFCTXHex Head Cap ScrewSteelGalvanized1 x 4 1/41x4-1/4 a325-1 hvy hex cap screw hdg dom. b18.2.15
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QFCTXHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 4 1/43/8-16x4 1/4 hex c/s gr8 y/zinc b18.2.1175
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QFCTXHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 4 1/43/8-16x4 1/4 hex c/s gr5 zinc b18.2.1209
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QFCTXHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 4 1/45/16-18x4 1/4 hex c/s gr8 y/zinc b18.2.1292
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QFCTXHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 4 1/45/16-18x4 1/4 hex c/s 18-8 b18.2.112
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QFCTXHex Head Cap ScrewGrade 5Plain5/16-18 x 4 1/45/16-18x4 1/4 hex cap screw grade 5 b18.2.1205
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow1 1/2-6 x 4 1/41 1/2-6 x 4 1/4 hex cap screws gr 8 z yellow b18.2.11
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow1 1/8-7 x 4 1/41 1/8-7 x 4 1/4 hex cap screws gr 8 zinc/yellow b18.2.11
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 4 1/41/2-13 x 4 1/4 hex cap screws gr 8 z yellow b18.2.177
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 4 1/41/2-13 x 4 1/4 hex cap screws gr 5 zinc b18.2.14
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B & K FASTPAHex Head Cap ScrewGrade 2Plain1/2-13 x 4 1/41/2-13 x 4 1/4 hex cap screws gr 2 plain b18.2.120
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B & K FASTPAHex Head Cap ScrewGrade 2Zinc/Clear1-8 x 4 1/41-8 x 4 1/4 hex cap screws gr 2 zinc b18.2.11
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B & K FASTPAHex Head Cap ScrewGrade 2Plain1-8 x 4 1/41-8 x 4 1/4 hex cap screws gr 2 plain b18.2.12
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow3/4-10 x 4 1/43/4-10 x 4 1/4 hex cap screws gr 8 z yellow b18.2.141
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 4 1/43/4-10 x 4 1/4 hex cap screws gr 5 zinc b18.2.136
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B & K FASTPAHex Head Cap ScrewGrade 5Plain3/4-10 x 4 1/43/4-10 x 4 1/4 hex cap screws gr5 plain b18.2.111
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B & K FASTPAHex Head Cap ScrewGrade 2Zinc/Clear3/4-10 x 4 1/43/4-10 x 4 1/4 hex cap screws gr 2 zinc b18.2.18
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow3/4-16 x 4 1/43/4-16 x 4 1/4 hex cap screws gr 8 z yellow b18.2.11
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear3/8-24 x 4 1/43/8-24 x 4 1/4 hex cap screws gr 5 zinc b18.2.121
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B & K FASTPAHex Head Cap ScrewGrade 2Zinc/Yellow5/8-11 x 4 1/45/8-11 x 4 1/4 hex cap screws gr 2 z yellow b18.2.1151
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B & K FASTPAHex Head Cap ScrewGrade 8Plain5/8-11 x 4 1/45/8-11 x 4 1/4 hex cap screws gr 8 plain b18.2.16
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B & K FASTPAHex Head Cap ScrewGrade 5Plain5/8-11 x 4 1/45/8-11 x 4 1/4 hex cap screws gr 5 plain b18.2.1342
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B & K FASTPAHex Head Cap ScrewGrade 2Zinc/Clear5/8-11 x 4 1/45/8-11 x 4 1/4 hex cap screws gr 2 zinc b18.2.15
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B & K FASTPAHex Head Cap ScrewGrade 2Plain5/8-11 x 4 1/45/8-11 x 4 1/4 hex cap screws gr 2 plain b18.2.13
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B & K FASTPAHex Head Cap ScrewGrade 5Plain5/8-18 x 4 1/45/8-18 x 4 1/4 hex cap screws gr 5 plain b18.2.11
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BHAMALHex Head Cap Screw316, 317, A4 StainlessPlain3/4-10 x 4 1/43/4-10x4 1/4 hex c/s 316 s/s b18.2.116
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BHAMALHex Head Cap ScrewGrade 5Galvanized5/8-11 x 4 1/45/8-11x4-1/4 hdg gr5 hex c/s full thread b18.2.118
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OSSCORIHex Head Cap ScrewGrade B7Plain3/4-10 x 4 1/43/4-10x4 1/4 hex cap screw b-7 b18.2.170
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OSSCORIHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 4 1/45/16-18x4 1/4 hex cap screw grade 5 plated b18.2.1660
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OSSCORIHex Head Cap ScrewGrade B7Plain5/8-11 x 4 1/45/8-11x4 1/4 hex cap screw b-7 b18.2.18
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OSSCORIHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/8-9 x 4 1/47/8-9x4 1/4 hex cap screw 18-8 304 b18.2.16
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QFCTXHex Head Cap ScrewGrade 5Plain1/4-20 x 4 1/41/4-20 x 4-1/4 hex cap screw grade 5 plain b18.2.1450
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QFCTXHex Head Cap ScrewSteelGalvanized1 x 4 1/41 x 4-1/4 a325-1 hvy hex cap screw hdg dom. rocap b18.2.12
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QFCTXHex Head Cap ScrewGrade 8Zinc/Yellow3/4-10 x 4 1/43/4-10x4 1/4 hex c/s gr8 y/zinc b18.2.110
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QFCTXHex Head Cap ScrewSteelGalvanized3/4-10 x 4 1/43/4-10x4-1/4 a325 hvy hex bolt hdg domestic rocap b18.2.141
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Mid-ValleyCAHex Head Cap ScrewGrade 5Zinc/Clear5/16-24 x 4 1/4hex head cap screw b18.2.1inquire
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APIIAHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 4 1/4screw hhc p/t gr5 zncl ansi b18.2.1714
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Pac FasTXHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 4 1/41/2-13 x 4 1/4 hex cap scerw grade 8 (sae j429) coarse zinc yellow (import) b18.2.125
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Pac FasTXHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 4 1/41/2-13 x 4-1/4 hex cap screw grade 8 (sae j429) coarse zinc yellow b18.2.136
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Pac FasTXHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 4 1/41/2-13 x 4-1/4 hex cap screw grade 5 (sae j429) coarse zinc (import) b18.2.1inquire
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Pac FasTXHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 4 1/41/2-13 x 4-1/4 hex cap screw grade 5 (sae j429) coarse zinc usa /canada b18.2.1135
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Pac FasTXHex Head Cap ScrewGrade 8Zinc/Yellow3/4-10 x 4 1/43/4-10 x 4-1/4 hex cap screw grade 8 (sae j429) coarse zinc yellow b18.2.1140
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Pac FasTXHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 4 1/43/4-10 x 4-1/4 hex cap screw grade 5 (sae j429) coarse zinc b18.2.125
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Pac FasTXHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 4 1/43/4-10 x 4-1/4 hex cap screw grade 5 (sae j429) coarse zinc (import) b18.2.155
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Pac FasTXHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 4 1/43/8-16 x 4-1/4 hex cap screw grade 8 (sae j429) coarse zinc yellow b18.2.1299
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Pac FasTXHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 4 1/43/8-16 x 4-1/4 hex cap screw grade 5 (sae j429) coarse zinc b18.2.1221
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Pac FasTXHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 4 1/45/16-18 x 4-1/4 hex cap screw grade 5 (sae j429) coarse zinc b18.2.1280
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Pac FasTXHex Head Cap ScrewGrade 8Zinc/Yellow5/8-11 x 4 1/45/8-11 x 4-1/4 hex cap screw grade 8 (sae j429) coarse zinc yellow b18.2.1151
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Pac FasTXHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 4 1/45/8-11 x 4-1/4 hex cap screw grade 5 (sae j429) coarse zinc b18.2.1161
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Pac FasTXHex Head Cap ScrewGrade 8Zinc/Yellow7/8-9 x 4 1/47/8-9 x 4-1/4 hex cap screw grade 8 (sae j429) coarse zinc yellow (import) b18.2.114
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Pac FasTXHex Head Cap ScrewGrade 8Zinc/Yellow9/16-12 x 4 1/49/16-12 x 4-1/4 hex cap screw grade 8 (sae j429) coarse zinc yellow b18.2.1inquire
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THRDFASTOKHex Head Cap ScrewGrade 2Plain1 1/4-7 x 4 1/4gr2 hex c/s b18.2.13
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THRDFASTOKHex Head Cap ScrewGrade 8Zinc/Yellow1 1/8-7 x 4 1/4gr8 hex c/s z&y domestic b18.2.118
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THRDFASTALHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 4 1/4gr8 hex c/s z&y b18.2.1125
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THRDFASTALHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/4-10 x 4 1/418-8 ss hex c/s b18.2.1160
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THRDFASTALHex Head Cap ScrewGrade 5Plain3/4-10 x 4 1/4gr5 hex c/s b18.2.115
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THRDFASTTNHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 4 1/4gr5 hex c/s b18.2.135
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THRDFASTTNHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/4-10 x 4 1/418-8 ss hex c/s b18.2.157
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THRDFASTFLHex Head Cap ScrewGrade 5Plain3/4-10 x 4 1/4gr5 hex c/s b18.2.139
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THRDFASTFLHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 4 1/4gr5 hex c/sr b18.2.12
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THRDFASTOKHex Head Cap ScrewGrade 5Plain3/8-16 x 4 1/4gr5 hex c/sr b18.2.1217
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KBSTNHex Head Cap ScrewGrade 8Plain3/8-16 x 4 1/43/8-16 x 4 1/4 hex cap/s alloy gr-8 b18.2.1956
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THRDFASTMSHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 4 1/418-8 ss hex c/s b18.2.160
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THRDFASTMSHex Head Cap Screw316, 317, A4 StainlessPlain5/8-11 x 4 1/4t-316 ss hex c/s b18.2.139
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THRDFASTFLHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 4 1/4gr5 hex c/s b18.2.118
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THRDFASTALHex Head Cap ScrewGrade 5Plain7/8-9 x 4 1/4gr5 hex c/s b18.2.111
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THRDFASTALHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain7/8-9 x 4 1/418-8 ss hex c/s b18.2.12
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THRDFASTMSHex Head Cap ScrewGrade 5Zinc/Clear7/8-9 x 4 1/4gr5 hex c/s b18.2.125
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THRDFASTOKHex Head Cap ScrewGrade 5Zinc/Clear7/8-9 x 4 1/4gr5 hex c/s b18.2.120
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WSBKYHex Head Cap ScrewASTM A320 L7, L7MZinc/Yellowq/ cap screw heavy hex l7 zy 1-8x4 1/4 b18.2.15
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WSBKYHex Head Cap ScrewGrade 5Plain1/4-20 x 4 1/4screw hcs gr5 zt 1/4-20x4 1/4 b18.2.1300
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WSBKYHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-11 x 4 1/4screw hcs (18-8) 5/8-11x4 1/4 b18.2.1260
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