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.

178,031 Hex Head Cap Screw, showing 200, (click on any line for more information)

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
Spring BoTXHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 2 1/83/8(16) x 2-1/8 hex cap screw 303 b18.2.1 b18.2.1 usainquire
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Spring BoTXHex Head Cap ScrewNi-Cu Alloy (Monel, K-Monel, etc.)Plain3/8-16 x 23/8(16) x 2 hex cap screw k500 aged b18.2.1 b18.2.1 usainquire
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Spring BoTXHex Head Cap ScrewBrassPlain3/8-16 x 1 1/43/8 (16) x 1-1/4 hex cap screw F468 Alloy 630 (Aluminum Bronze) b18.2.1 b18.2.1 usainquire
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Spring BoTXHex Head Cap ScrewDuplex Stainless (2205, Ferralium etc.)Plain3/8-16 x 2 1/43/8 (16) x 2-1/4 hex cap screw zeron 100 b18.2.1 b18.2.1 usainquire
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Buy Hex Cap Screws from one of our FCH Network Partners
Zoro Tools Inc.Hex Head Cap ScrewSteelPlain3/8-16self aligning die hcs right 3/8-16 nc
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Zoro Tools Inc.Hex Head Cap ScrewGrade 8Plain3/8-163/8-16 grade 8 hex head cap screw steel pk 25
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Ace Hardware Inc.Hex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1hillman 3/8-16 in. dia. x 1 in. l stainless steel hex head cap screw 50 pk
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Ace Hardware Inc.Hex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3hillman 3/8-16 in. dia. x 3 in. l stainless steel hex head cap screw 25 pk
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Buy Hex Cap Screws from one of our FCH Network Members
SWACOOHHex Head Cap ScrewSteelPlain3/8-16 x 1.943/8-16 x 1.94 trim hex hd stl pln/oil21430
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SWACOOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 43/8-16 x 4 hhcs gr5 stl zi400
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SWACOOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 5/83/8-16 x 5/8 hhcs 18-84665
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SWACOOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3/43/8-16 x 3/4 hhcs 18-87134
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SWACOOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3 1/23/8-16 x 3 1/2 hhcs gr5 st zinc293
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SWACOOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3/43/8-16 x 3/4 hhcs f/t gr5 stl zinc cr37547
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SWACOOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 13/8-16 x 1 hhcs f/t gr5 stl zinc cr31650
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SWACOOHHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 1 1/43/8-16 x 1 1/4 ft hhcs gr8 z&y184
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SWACOOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 33/8-16 x 3 hhcs stl gr5 zinc375
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SWACOOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 1 3/43/8-16 x 1 3/4 hhcs gr5 zinc815
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SWACOOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 23/8-16 x 2 hhcs p/t gr5 stl zi cr32312
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SWACOOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 1 1/23/8-16 x 1 1/2 hhcs gr5 st zinc1887
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SWACOOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1 1/43/8-16 x 1 1/4 hhcs 18-8266
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SWACOOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 2 1/43/8-16 x 2 1/4 hhcs gr5 st zinc971
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SWACOOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 1 1/43/8-16 x 1 1/4 hhcs f/t gr5 st zinc cr350
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SWACOOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 5/83/8-16 x 5/8 hhcs gr5 st zinc1916
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HodellOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 4 1/2hex c/s 18-8 s/s288
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HodellOHHex Head Cap ScrewGrade 5Plain3/8-16 x 4hex c/s import150
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HodellOHHex Head Cap ScrewGrade 5Zinc/Yellow3/8-16 x 1 1/8hex c/s zy import66
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HodellOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3 3/4hex c/s import100
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OlanderCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 4 1/43/8-16 x 4 1/4 hex hd sst rohs28
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ECCILHex Head Cap ScrewGrade 5Plain3/8-16 x 7/8c/s36,200
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ECCILHex Head Cap ScrewGrade 5Zinc/Yellow3/8-16 x 1 3/8c/s23,602
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ECCILHex Head Cap ScrewGrade 5Plain3/8-16 x 3/4c/s16,800
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ECCILHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3/4c/s138,352
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ECCILHex Head Cap ScrewGrade 5Zinc/Yellow3/8-16 x 1 1/2c/s87,264
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ECCILHex Head Cap ScrewGrade 5Plain3/8-16 x 1 5/8c/s5,972
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ECCILHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3 3/4c/s45,000
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ECCILHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 6c/s6,000
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ECCILHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 4c/s21,000
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ECCILHex Head Cap ScrewGrade 5Plain3/8-16 x 3c/s26,120
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ECCILHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 3c/s10,800
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ECCILHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3 1/4c/s335
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ECCILHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3 1/2c/s23,600
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ECCILHex Head Cap ScrewGrade 5Plain3/8-16 x 2 3/4c/s17,658
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ECCILHex Head Cap ScrewGrade 5Plain3/8-16 x 4 3/4c/s2,925
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ECCILHex Head Cap ScrewGrade 5Plain3/8-16 x 6 1/2c/s11,550
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AccutiteCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1/2hex cap 18-8 304100
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AccutiteCAHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 1/2hex cap i200
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AccutiteCAHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3/4hex cap i2200
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AccutiteCAHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 3/4hex c/s g8971
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AccutiteCAHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 7/8hex c/s g5 i1,600
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AccutiteCAHex Head Cap ScrewSteelZinc/Clear3/8-16 x 3/4hex cap i1,598
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AccutiteCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3/4c/s s/s with drylok 202537
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AccutiteCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3/4hex cap 18-8 3042750
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AccutiteCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 7/8c/s s/s with drylok2021250
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AccutiteCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide3/8-16 x 7/8c/s 18-8 304850
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AccutiteCAHex Head Cap ScrewGrade 5Black Oxide3/8-16 x 1c/s gr.5 with nylon patch1675
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AccutiteCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1c/s s/s with drylok 202400
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AccutiteCAHex Head Cap ScrewGrade 5Aluminum zinc flake (Dacromet, Magnigard, Doerken)3/8-16 x 1c/s gr.5 coated magni 565 silver67
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AccutiteCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1hex cap 18-8 304 f/t rohs compliant1050
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AccutiteCAHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 1hex cap i1750
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AccutiteCAHex Head Cap ScrewGrade 8Zinc/Clear3/8-16 x 1hex cap ii792
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AALLNJHex Head Cap ScrewSteelZinc/Yellow3/8-16 x 1b1821bh038c100l, 3/8-16 x 1 astm a354 bd c/s , w/ locking element116
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AALLNJHex Head Cap ScrewSteelZinc/Yellow3/8-16 x 1 3/8c/s , astm a354 grade bd,289
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AALLNJHex Head Cap ScrewSteelZinc/Yellow3/8-16 x 1b1821bh038c100n, 3/8-16 x 1 astm a354 bd c/s ,369
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AALLNJHex Head Cap ScrewSteelPlain3/8-16 x 1flat saocket c/s , with nylon patch1360
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AALLNJHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3/4c/s , ,650
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AALLNJHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 3/4c/s , ,391
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AALLNJHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 1/2c/s , ,23
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AALLNJHex Head Cap ScrewGrade 5Plain3/8-16 x 7/8c/s , ,1000
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AALLNJHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3/4c/s , 18-8 30426
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AALLNJHex Head Cap ScrewNylonPlain3/8-16 x 3/4c/s ,212
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AALLNJHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 1/2c/s , 18-8 304209
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AALLNJHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 1 1/4c/s , ,450
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AALLNJHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 1c/s , ,10000
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AALLNJHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 1c/s , ,3000
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AALLNJHex Head Cap ScrewGrade 5Plain3/8-16 x 1 1/4c/s , ,3200
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AALLNJHex Head Cap Screw316, 317, A4 StainlessPlain3/8-16 x 1 1/4c/s , 316 stainless50
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