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3/8-16 Hex Cap Screws

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.

177,170 Hex Head Cap Screw, showing 200, (click on any line for more information)

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
MESAFASTCAHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 2 1/4hex c/s gr5 steel50.0
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LibertyILHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 5 1/23/8-16x5-1/2 c/s135
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LibertyILHex Head Cap ScrewASTM A354 Grade BDZinc/Clear3/8-16 x 13/8-16 unc-2ax1 c/s astm 354 grade bd .0625 thick per astm b633-19153
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LibertyILHex Head Cap ScrewASTM A354 Grade BDZinc/Clear3/8-16 x 1 3/43/8-16x1-3/4 c/s astm a354-17 grade bd per astm b633-19 1/16 thck162
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LibertyILHex Head Cap ScrewASTM A354 Grade BDZinc/Yellow3/8-16 x 13/8-16x1 c/s astm 354 grade bd &514
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LibertyILHex Head Cap ScrewDuplex Stainless (2205, Ferralium etc.)Plain3/8-16 x 1c/s duplex s32205 1/16 hole through hex with certs1
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MFSKSHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1/27
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MFSKSHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 7/8drilled head84
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MFSKSHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 17
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MFSKSHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 13/4101
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MFSKSHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 31/21
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MFSKSHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 51
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MFSKSHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 41/42
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MFSKSHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 636
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MFSKSHex Head Cap ScrewSteelPlain3/8-16 x 1 1/216
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MFSKSHex Head Cap ScrewNylon (Polyamide)Plain3/8-16 x 3/4510
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MFSKSHex Head Cap ScrewNylon (Polyamide)Plain3/8-16 x 21/2197
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MFSKSHex Head Cap ScrewNylon (Polyamide)Plain3/8-16 x 336
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IRFNJHex Head Cap ScrewGrade 2Plain3/8-16 x 13/8-16x1 hex cap scr grade 2 pln s3716ch2p1,200
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MidStatesMIHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 18hex cap screw 4-1/4 thread length330
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ISSCOMOHex Head Cap ScrewGrade 5Plain3/8-16 x 5hex head cap screw4200
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ISSCOMOHex Head Cap ScrewGrade 2Plain3/8-16 x 7 1/2hex head cap screw750
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SpencerOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 4 1/218-8 SST1700
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SISAZHex Head Cap Screw316, 317, A4 StainlessPlain3/8-16 x 1hex c/s 316 stainless50
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SISAZHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 3/4c/s50
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3/4hex c/s 18-8 304200
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SISAZHex Head Cap ScrewGrade 5Galvanized3/8-16 x 3/4c/s grd 5 mechanical10000
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SISAZHex Head Cap Screw316, 317, A4 StainlessPlain3/8-16 x 3/4c/s 316 ss50
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SISAZHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 1c/s972
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide3/8-16 x 3/4c/s 18-8 3046000
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SISAZHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 3/4hex c/s grade 22440
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3c/s 18-8 30450
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SISAZHex Head Cap ScrewSteelZinc/Clear3/8-16 x 1hex c/s2647
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SISAZHex Head Cap Screw316, 317, A4 StainlessPlain3/8-16 x 1 1/4hex c/s 316 stainless75
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SISAZHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 1 3/4hex c/s40
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SISAZHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 1 1/2hex c/s370
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 6c/s st. st.50
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SISAZHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3 3/4hex c/s23
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SISAZHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 5hex c/s25
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SISAZHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 5 1/23/8-16x5-1/2 c/s25
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SISAZHex Head Cap ScrewGrade 8Plain3/8-16 x 6c/s25
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SISAZHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3 1/2hex c/s175
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IRFNJHex Head Cap ScrewSteelPlain3/8-16 x 1 1/23/8-16x1-1/2 hhcs61
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IRFNJHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 53/8-16x5 hex cap scr grade 2 zinc s3780ch2z135
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IRFNJHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 1 3/83/8-16x1 3/8 hex cap scr grade 5 zinc s3722ch5z1,150
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IRFNJHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 3 3/43/8-16x3 3/4 hex cap scr grade 2 zinc3,099
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IRFNJHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 13/8-16x1 hex cap scr grade 5 zinc s3716ch5z800
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IRFNJHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 3 1/23/8-16x3 1/2 hex cap scr grade 8 z/yelw s3756ch8y54
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IRFNJHex Head Cap ScrewGrade 8Zinc/Clear3/8-16 x 3/43/8-16x3/4 hex cap scr grade 8 zinc196
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IRFNJHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 3/43/8-16x3/4 hex cap scr grade 2 zinc s3712ch2z10,182
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IRFNJHex Head Cap ScrewGrade 8Zinc/Clear3/8-16 x 1 1/43/8-16x1 1/4 hex cap scr grade 8 zinc s3720ch8z839
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IRFNJHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 1/23/8-16x1/2 hex cap scr grade 5 zinc s3708ch5z1,200
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IRFNJHex Head Cap ScrewGrade 8Zinc/Clear3/8-16 x 13/8-16x1 hex cap scr grade 8 zinc587
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IRFNJHex Head Cap ScrewGrade 2Plain3/8-16 x 2 1/23/8-16x2 1/2 hex cap scr grade 2 pln s3740ch2p1,268
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IRFNJHex Head Cap ScrewGrade 2Plain3/8-16 x 5/83/8-16x5/8 hex cap scr grade 2 pln s3710ch2p2,900
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IRFNJHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 23/8-16x2 hex cap scr 18-8 s/s pln 8500-2272,460
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IRFNJHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 1 1/43/8-16x1 1/4 hex cap scr grade 2 zinc s3720ch2z4,683
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IRFNJHex Head Cap ScrewGrade 8Zinc/Clear3/8-16 x 2 1/23/8-16x2 1/2 hex cap scr grade 8 zinc308
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IRFNJHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 23/8-16x2 hex cap scr grade 5 zinc450
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IRFNJHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 23/8-16x2 hex cap scr grade 2 zinc s3732ch2z100
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IRFNJHex Head Cap ScrewGrade 8Zinc/Clear3/8-16 x 1 1/23/8-16x1 1/2 hex cap scr grade 8 zinc575
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IRFNJHex Head Cap ScrewGrade 8Zinc/Clear3/8-16 x 23/8-16x2 hex cap scr grade 8 zinc444
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Marine FastenersFLHex Head Cap ScrewSilicon BronzePlain3/8-16 x 43/8-16 x 4 hex hd cs sil/brz b18.2.11092
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Marine FastenersFLHex Head Cap ScrewBrassPlain3/8-16 x 2 1/23/8-16x2-1/2 hex head cs brass b18.2.11035
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Marine FastenersFLHex Head Cap ScrewBrassPlain3/8-16 x 33/8-16x3 hex head cs brass b18.2.11115
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General FMIHex Head Cap ScrewSteelZinc/Yellow3/8-16 x 1 3/83/8-16 x 1.375 hhcs 5 zn ylw b18.2.11545
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General FMIHex Head Cap ScrewGrade 8Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)3/8-16 x 2.75hf 3/8-16 x 2.75 hhcs 8 magni 5656825
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General FMIHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 1 1/23/8-16 x 1.5 hhcs gr2 zn b18.2.12625
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General FMIHex Head Cap ScrewGrade 5Plain3/8-16 x 3 1/23/8-16 x 3.5 sems hhcs gr 5 lw b18.2.127900
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General FMIHex Head Cap ScrewGrade 5Plain3/8-16 x 3 3/43/8-16 x 3.75 sem hhcs gr5 med b18.2.112300
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SRFALHex Head Cap ScrewGrade 8Plain3/8-16 x 1 1/2hcs-
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SRFALHex Head Cap ScrewGrade 9Zinc/Yellow3/8-16 x 1 1/2hcs l91
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SRFALHex Head Cap ScrewSilicon BronzePainted3/8-16 x 1 1/2hcs sil bronze78
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SRFALHex Head Cap ScrewGrade 9Zinc/Yellow3/8-16 x 1 3/4hcs l957
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SRFALHex Head Cap ScrewGrade 8Plain3/8-16 x 1 3/4hcs129
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SRFALHex Head Cap ScrewBrassPlain3/8-16 x 1 3/4hcs5
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SRFALHex Head Cap ScrewGrade 2Plain3/8-16 x 1 3/4hcs-
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SRFALHex Head Cap ScrewGrade 2Galvanized3/8-16 x 2hcs3,385
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SRFALHex Head Cap ScrewGrade 5Plain3/8-16 x 2hcs96
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SRFALHex Head Cap ScrewGrade 2Plain3/8-16 x 2 1/4hcs-
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SRFALHex Head Cap ScrewBrassPlain3/8-16 x 2hcs3
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SRFALHex Head Cap ScrewGrade 9Zinc/Yellow3/8-16 x 2hcs l9475
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SRFALHex Head Cap Screw316, 317, A4 StainlessPlain3/8-16 x 2 1/4hcs 316 s/s20
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SRFALHex Head Cap ScrewGrade 5Plain3/8-16 x 2 1/4hcs78
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SRFALHex Head Cap ScrewGrade 8Plain3/8-16 x 2 1/4hcs29
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SRFALHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 2 1/2hcs-
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SRFALHex Head Cap ScrewGrade 8Plain3/8-16 x 2 1/2hcs42
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SRFALHex Head Cap ScrewGrade 9Zinc/Yellow3/8-16 x 2 1/2hcs l930
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SRFALHex Head Cap ScrewGrade 5Plain3/8-16 x 2 1/2hcs-
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SRFALHex Head Cap Screw316, 317, A4 StainlessPlain3/8-16 x 2 3/4hcs 316 s/s11
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3/8c/s 18-8 s/s100
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1hex c/s 18-8 30450
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 2 1/2c/s 18-8 304450
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 2 1/4hex c/s 18-8 30450
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 2c/s 18-8 3041235
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SISAZHex Head Cap ScrewSteelZinc/Clear3/8-16 x 7hex c/s222
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SISAZHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 6c/s35
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3 1/2c/s 18-8 30425
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Coburn Myers Fastening SystemsPAHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 2 3/4hex cap screw grade 5 zinc b18.2.11850
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