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3/4 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.

Hex Head Cap Screw (b18.2.1), showing 200, (click on any line for more information)
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GLFOHHex Head Cap Screw316, 317, A4 StainlessPlain3/8-16 x 3/43/8-16x3/4 hhcs 316 s/s b18.2.1 () ()5,000
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GLFOHHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 3/41/2-13x3/4 hhcs grade 8 stl zy b18.2.1 () () ()459,000
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GLFOHHex Head Cap ScrewSilicon BronzePlain1/2-13 x 3/41/2-13x3/4 hhcs sil brz b18.2.1 () () ()2,000
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GLFOHHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 3/41/2-13x3/4 hhcs grade 5 stl zc b18.2.1 () () ()431,000
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GLFOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3/41/2-13x3/4 hhcs 18-8 s/s b18.2.1 () () ()65,000
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Irwin IndOntHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 3/41/4-20 x 3/4 hex capscrew gr 8 zinc trivalent yellow b18.2.1385
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Irwin IndOntHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#10-32 x 3/410-32 x 3/4 hex head cap screw 18.8 stainless steel b18.2.1800
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Irwin IndOntHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3/41/4-20 x 3/4 unc hhcs 18.8 stainless steel b18.2.12
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Irwin IndOntHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3/41/4-20 x 3/4 unc hhcs 18.8 stainless stl astm f593c b18.2.1180
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Irwin IndOntHex Head Cap Screw316, 317, A4 StainlessPlain1/4-20 x 3/41/4-20 x 3/4 hex capscrew 316 stainless steel b18.2.1119
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Irwin IndOntHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3/45/16-18 x 3/4 unc hex hd. capscrew 18.8 stainless steel b18.2.1 3547
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Irwin IndOntHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3/43/8-16 x 3/4 unc hex head capscrew stainless steel b18.2.1 7192
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Irwin IndOntHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3/41/4-20 x 3/4 unc gr 5 hhcs steel zinc trivalent clear b18.2.1 3422
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Irwin IndOntHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 3/45/16-18 x 3/4 steel gr 5 hhcs znc triv clr w/ 3m scotchgrip b18.2.1250
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Irwin IndOntHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 3/45/16-18 x 3/4 steel grade 5 hex hd cap screw znc trivalent b18.2.1 400
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AbabaCAHex Head Cap ScrewGrade 5Plain1/4-20 x 3/41/4-20 x 3/4 h/c al-2000 (black) gr 5 b18.2.1395
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AbabaCAHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3/41/4-20 x 3/4 h/c gr 5 znc b18.2.13822
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AbabaCAHex Head Cap Screw316, 317, A4 StainlessPlain1/4-20 x 3/41/4-20 x 3/4 h/c 316 s/s b18.2.11110
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AbabaCAHex Head Cap ScrewGrade 9Zinc/Yellow1/4-20 x 3/41/4-20 x 3/4 h/c gr.9 yel znc b18.2.1200
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AbabaCAHex Head Cap ScrewAluminumPlain1/4-20 x 3/41/4-20 x 3/4 h/c alum b18.2.124
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AbabaCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3/41/4-20 x 3/4 h/c s/s b18.2.12500
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AbabaCAHex Head Cap ScrewGrade 5Zinc/Clear1/4-28 x 3/41/4-28 x 3/4 h/c gr 5 znc b18.2.11845
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AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow1/4-28 x 3/41/4-28 x 3/4 h/c dom gr 8 yel znc b18.2.1836
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AbabaCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28 x 3/41/4-28 x 3/4 h/c s/s b18.2.1131
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AbabaCAHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 3/45/16-18 x 3/4 h/c gr 5 znc b18.2.16400
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AbabaCAHex Head Cap Screw316, 317, A4 StainlessPlain5/16-18 x 3/45/16-18 x 3/4 h/c 316 s/s b18.2.1122
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AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 3/45/16-18 x 3/4 h/c dom gr 8 yel znc b18.2.1375
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AbabaCAHex Head Cap ScrewGrade 9Zinc/Yellow5/16-18 x 3/45/16-18 x 3/4 h/c gr.9 yel znc b18.2.1180
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AbabaCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3/45/16-18 x 3/4 h/c s/s b18.2.12625
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AbabaCAHex Head Cap ScrewGrade 5Zinc/Clear5/16-24 x 3/45/16-24 x 3/4 h/c gr 5 znc b18.2.1805
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AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow5/16-24 x 3/45/16-24 x 3/4 h/c dom gr 8 yel znc b18.2.11600
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AbabaCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-24 x 3/45/16-24 x 3/4 h/c s/s b18.2.13
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AbabaCAHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3/43/8-16 x 3/4 h/c gr 5 znc b18.2.12394
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AbabaCAHex Head Cap Screw316, 317, A4 StainlessPlain3/8-16 x 3/43/8-16 x 3/4 h/c 316 s/s b18.2.1547
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AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 3/43/8-16 x 3/4 h/c dom gr 8 yel znc b18.2.11104
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SIIINHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 3/41/4-20 x 3/4 grd8 yellow zinc hex cap screw) b18.2.1562
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SIIINHex Head Cap ScrewGrade 2Zinc/Clear1/4-20 x 3/41/4-20 x 3/4 g2 zinc hex cap screw b18.2.14868
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SIIINHex Head Cap ScrewGrade 8Zinc/Yellow5/16-24 x 3/45/16-24 x 3/4 grd8 yellow zinc hex cap screw) b18.2.11330
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SIIINHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3/43/8-16 x 3/4 grd5 zinc hex cap screw usa) b18.2.11006
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SIIINHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3/41/4-20 x 3/4 18-8 stainless steel hex cap screw) b18.2.1800
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SIIINHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3/43/8-16x3/4 (ft) unc hex cap screws coarse stain a2 (18-8) b18.2.125
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QFCTXHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3/41/4-20x3/4 hex cap screw 18-8 304 steel domestic b18.2.1904
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QFCTXHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3/41/4-20x3/4 hex cap screw 18-8 304 steel domestic b18.2.1325
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QFCTXHex Head Cap ScrewGrade 2Zinc/Clear1/4-28 x 3/41/4-28x3/4 hex cap screw grade 2 zinc b18.2.11870
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QFCTXHex Head Cap ScrewGrade 2Zinc/Clear1/4-28 x 3/41/4-28x3/4 hex cap screw grade 2 zinc b18.2.11868
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QFCTXHex Head Cap ScrewGrade 5Zinc/Clear1/4-28 x 3/41/4-28x3/4 hex cap screw grade 5 zinc b18.2.1800
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QFCTXHex Head Cap ScrewGrade 5Plain5/16-18 x 3/45/16-18x3/4 hex cap screw grade 5 b18.2.13282
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QFCTXHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3/45/16-18x3/4 hex cap screw 304 s/s domestic b18.2.183
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QFCTXHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3/45/16-18x3/4 hcs s/s w/drilled head b18.2.11411
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QFCTXHex Head Cap ScrewGrade 5Plain5/16-24 x 3/45/16-24x3/4 hhcs grade 5 plain b18.2.12096
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QFCTXHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3/41/2-13x3/4 hex cap screw ss domestic b18.2.11463
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QFCTXHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3/41/2-13x3/4 hex cap screw ss domestic b18.2.1275
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QFCTXHex Head Cap ScrewBrassPlain1/2-13 x 3/41/2-13x3/4 hex c/s brass b18.2.1200
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QFCTXHex Head Cap ScrewBrassPlain1/2-13 x 3/41/2-13x3/4 hex c/s brass b18.2.1610
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QFCTXHex Head Cap ScrewGrade AGalvanized1/2-13 x 3/41/2-13x3/4 hex c/s a307 hdg 100% domestic b18.2.1650
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QFCTXHex Head Cap ScrewGrade AGalvanized1/2-13 x 3/41/2-13x3/4 hex c/s a307 hdg 100% domestic b18.2.1399
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QFCTXHex Head Cap ScrewGrade AGalvanized1/2-13 x 3/41/2-13x3/4 hex c/s a307 hdg 100% domestic b18.2.11414
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QFCTXHex Head Cap ScrewGrade AGalvanized1/2-13 x 3/41/2-13x3/4 hex c/s a307 hdg 100% domestic b18.2.16009
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QFCTXHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3/41/4-20x3/4 hex c/s 304 s/s domestic b18.2.1432
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QFCTXHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3/41/4-20x3/4 hex c/s 304 s/s domestic b18.2.1283
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QFCTXHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3/41/4-20x3/4 hex c/s 304 s/s domestic b18.2.1452
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B & K FASTPAHex Head Cap ScrewSilicon BronzePainted1/2-13 x 3/41/2-13 x 3/4 hex cap screws sil bronze b18.2.112
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B & K FASTPAHex Head Cap ScrewGrade 2Plain7/16-14 x 3/47/16-14 x 3/4 hex cap screws gr 2 plain b18.2.141
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B & K FASTPAHex Head Cap ScrewGrade 2Zinc/Clear7/16-14 x 3/47/16-14 x 3/4 hex cap screws gr 2 zinc b18.2.161
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B & K FASTPAHex Head Cap ScrewGrade 2Zinc/Yellow7/16-20 x 3/47/16-20 x 3/4 hex cap screws gr 2 z yellow b18.2.115
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B & K FASTPAHex Head Cap ScrewGrade 9Zinc/Clear7/16-20 x 3/47/16-20 x 3/4 hex cap screws gr 9 (mc12) zinc b18.2.123
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear1/2-20 x 3/41/2-20 x 3/4 hex cap screws gr 5 zinc b18.2.13022
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B & K FASTPAHex Head Cap ScrewGrade 8Plain1/2-20 x 3/41/2-20 x 3/4 hex cap screws gr 8 plain b18.2.1100
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear3/4-16 x 3/43/4-16 x 3/4 hex cap screws gr 5 zinc b18.2.11
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B & K FASTPAHex Head Cap ScrewBrassPlain1/4-20 x 3/41/4-20 x 3/4 hex cap screws brass b18.2.11606
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B & K FASTPAHex Head Cap ScrewSilicon BronzePainted1/4-20 x 3/41/4-20 x 3/4 hex cap screws sil bronze b18.2.1300
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B & K FASTPAHex Head Cap ScrewSilicon BronzePainted5/16-18 x 3/45/16-18 x 3/4 hex cap screws sil bronze b18.2.1187
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B & K FASTPAHex Head Cap ScrewBrassPlain3/8-16 x 3/43/8-16 x 3/4 hex cap screws brass b18.2.1209
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B & K FASTPAHex Head Cap ScrewGrade 2Zinc/Clear1/4-20 x 3/41/4-20 x 3/4 hex cap screws gr 2 zinc b18.2.11798
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B & K FASTPAHex Head Cap ScrewGrade 5Plain1/4-20 x 3/41/4-20 x 3/4 hex cap screws gr 5 plain b18.2.18363
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3/41/4-20 x 3/4 hex cap screws gr 5 zinc b18.2.13066
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 3/41/4-20 x 3/4 hex cap screws gr 8 z yellow b18.2.11651
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Yellow1/4-28 x 3/41/4-28 x 3/4 hex cap screws gr 5 z yellow b18.2.11633
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B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 3/45/16-18 x 3/4 hex cap screws gr 5 zinc b18.2.12082
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 3/45/16-18 x 3/4 hex cap screws gr 8 z yellow b18.2.14351
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B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow5/16-24 x 3/45/16-24 x 3/4 hex cap screws gr 8 z yellow b18.2.110010
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WurthOntHex Head Cap ScrewGrade 5Plain3/8-16 x 3/4scr hcs gr5 (pl) 3/8-16x3/4 b18.2.15632
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WurthOntHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3/4scr hcs (18-8) 3/8-16x3/4 b18.2.1301
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