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3 1/2 inch length 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.

189,388 Hex Head Cap Screw, showing 200, (click on any line for more information)

1 1/2-6 x 3 1/2
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SupplierLocTypeMaterialFinishSizeDescriptionQty 
BrikksenINHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 3 1/21/2-20 x 3-1/2 hex head cap screw 18-8 ss 5 per small bag 5 small bags per master pack-generic brand400
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BrikksenFLHex Head Cap Screw316, 317, A4 StainlessPlain3/4-10 x 3 1/23/4-10 x 3-1/2 hex hd cs 316ss20
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BrikksenFLHex Head Cap Screw316, 317, A4 StainlessPlain1/2-13 x 3 1/21/2-13 x 3-1/2 hex hd cs 316ss1000
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BrikksenFLHex Head Cap Screw316, 317, A4 StainlessPlain5/8-11 x 3 1/25/8-11 x 3-1/2 hex hd cs 316ss900
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BrikksenINHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3 1/21/2-13 x 3-1/2 hex head cap screw 18-8 ss 5 per small bag 5 small bags per master pack-generic brandinquire
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BrikksenFLHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3 1/21/2-13 x 3 1/2 hx hd cs ss full thread f593c900
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BrikksenINHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3 1/25/16-18 x 3-1/2 hex head cap screw 18-8 ss 10 per small bag 5 small bags per master pack-generic brandinquire
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BrikksenFLHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3 1/21/4-20 x 3-1/2 hex head cs ss f593c11000
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BrikksenFLHex Head Cap Screw316, 317, A4 StainlessPlain7/16-14 x 3 1/27/16-14 x 3-1/2 hx hd cs 316ssinquire
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BrikksenFLHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain9/16-12 x 3 1/29/16-12 x 3-1/2 hex head cs ss f593cinquire
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BrikksenFLHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3 1/21/4-20 x 3-1/2 hex head cs ss/full thread f593c800
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BrikksenINHex Head Cap Screw316, 317, A4 StainlessPlain1/2-13 x 3 1/21/2-13 x 3-1/2 hex head cap screw 316 ss 5 per small bag 5 small bags per master pack-generic brandinquire
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BrikksenFLHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3 1/25/16-18 x 3-1/2 hx hd cs ss/ft f593c9000
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BrikksenFLHex Head Cap ScrewGrade 8Plain9/16-12 x 3 1/29/16-12 x 3-1/2 hex head gr8 stl/zdinquire
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BrikksenINHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-11 x 3 1/25/8-11 x 3 1/2 hex cap screw 18-8 ss 1 per small bag 5 small bags per master pack-generic brandinquire
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BrikksenFLHex Head Cap Screw316, 317, A4 StainlessPlain1/2-20 x 3 1/21/2-20 x 3-1/2 hex hd cs 316ssinquire
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BrikksenFLHex Head Cap ScrewSilicon BronzePlain5/8-11 x 3 1/25/8-11 x 3-1/2 hex head cs silicon bronzeinquire
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BrikksenFLHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-11 x 3 1/25/8-11 x 3-1/2 hx hd cs ft ss f593c1000
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BrikksenFLHex Head Cap ScrewSteelGalvanized5/16-18 x 3 1/25/16-18 x 3-1/2 hex head cs hdginquire
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BrikksenFLHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3 1/25/16-18 x 3-1/2 hx hd cs ss/ft f593c3000
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EmpireWAHex Head Cap ScrewGrade 8Zinc/Yellow7/8-9 x 3 1/27/8-9 x 3-1/2 gr.8 hex c/s yzp12
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EmpireWAHex Head Cap ScrewGrade 8Plain3/4 x 3 1/23/4 x 3 1/2 nc gr. 8 cap scre11
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EmpireWAHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3 1/21/4-20 x 3-1/2 gr5 hex c/s zp25
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EmpireWAHex Head Cap ScrewSteelPlain5/8-11 x 3 1/25/8-11 x 3-1/2 hex c/s40
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CenturyFLHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3 1/21/4-20x3 1/2 hex head cap screw grade 5 trivalent zinc clear 350
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Field FasILHex Head Cap ScrewGrade 8Zinc/Yellow1/4-7 x 3 1/21 1/4-7 x 3 1/2 hex cap screw gr 8 zc/yellow manufactured to asme b18.2.1 and sae j429 specifications28
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Field FasILHex Head Cap ScrewGrade B8Plain5/8-11 x 3 1/25/8-11 x 3 1/2 hex cap screw 304 ss astm a193 gr b8 class 2 strain hardened4
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Field FasILHex Head Cap Screw316, 317, A4 StainlessPlain7/8-9 x 3 1/27/8-9 x 3 1/2 hex cap screw 316 ss f59320
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Field FasILHex Head Cap ScrewGrade 5Zinc/Black3/8-16 x 3 1/23/8-16 x 3 1/2 hex cap screw gr 5 zc/blk rohs1460
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KomarILHex Head Cap ScrewGrade 8Zinc/Yellow7/16-20 x 3 1/27/16-20x3 1/2 hex cap screw grade 8 zinc yellow
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KomarILHex Head Cap Screw316, 317, A4 StainlessPlain5/16-18 x 3 1/25/16-18x3 1/2 hex head cap screw 316 ss
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American WIHex Head Cap ScrewSuperalloy (Inconel, Hastelloy, Alloy 20)Plain1/2-13 x 3 1/21/2-13x3-1/2 nc hex hd c/s 17-4 ph h1150 stainless steel8
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American WIHex Head Cap ScrewGrade 5Zinc/Yellow5/8-11 x 3 1/25/8-11x3-1/2 nc hex hd c/s gr 5 zinc yellow359
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American WIHex Head Cap ScrewGrade 8Zinc/Yellow9/16-12 x 3 1/29/16-12x3-1/2 nc hex hd c/s gr 8 zinc yellow1205
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LonghornTXHex Head Cap ScrewGrade 8Plain5/8-18 x 3 1/25/8-18 x 3-1/2 hex cap screw gr 8 plain38
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LonghornTXHex Head Cap ScrewGrade 2Galvanized1-8 x 3 1/21-8 x 3-1/2 hex cap screw gr 2 hdg3
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LonghornTXHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3 1/21/4-20 x 3-1/2 hex cap screw gr 5 z481
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LonghornTXHex Head Cap ScrewGrade 2Galvanized5/16-18 x 3 1/25/16-18 x 3-1/2 hex cap gr 2 hdg38
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LonghornTXHex Head Cap ScrewGrade 2Plain3/4-10 x 3 1/23/4-10 x 3-1/2 hex cap screw gr 2 h43
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Raw ProduNJHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28 x 3 1/2hex cap screws 304 ss 1/4-28 x 3-1/2894
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Raw ProduNJHex Head Cap ScrewGrade 8Plain7/16-20 x 3 1/2hex cap screws grade 8 7/16-20 x 3-1/2 pt218
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Raw ProduNJHex Head Cap Screw316, 317, A4 StainlessPlain9/16-18 x 3 1/2hex cap screws 316 ss 9/16-18 x 3-1/2 pt81
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Raw ProduNJHex Head Cap ScrewSteelGalvanized1/2-13 x 3 1/2hex cap screws hdg 1/2-13 x 3-1/2 pt151
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Raw ProduNJHex Head Cap Screw316, 317, A4 StainlessPlain5/16-18 x 3 1/2hex cap screws 316 ss 5/16-18 x 3-1/2 pt53
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Raw ProduNJHex Head Cap ScrewGrade 5Zinc/Clear7/16-14 x 3 1/2hex cap screws grade 5 zinc 7/16-14 x 3-1/2 pt622
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Raw ProduNJHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3 1/2hex cap screws 304 ss 1/4-20 x 3-1/2 pt335
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Raw ProduNJHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 3 1/2hex cap screws 304 ss 1/2-20 x 3-1/278
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Raw ProduNJHex Head Cap ScrewGrade 8Plain1 1/4-7 x 3 1/2hex cap screws grade 8 1-1/4-7 x 3-1/2 ft500
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QCSORHex Head Cap ScrewGrade 2Galvanized3/8-16 x 3 1/23/8-16x3-1/2 hex cap screw gr.2 hot dip galvanized384
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QCSORHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/4-10 x 3 1/23/4-10x3-1/2 hex cap screw stainless50
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QCSORHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3 1/23/8-16x3-1/2 hex cap screw gr.5 zinc250
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Fastener OHHex Head Cap ScrewGrade 5Zinc/Clear7/8-14 x 3 1/2hex head cap screw 7/8-14(unf)x3-1/2 grade 5 steel zinc plated 45
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Wurth IndINHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 3 1/2hex cap screw grade 5 zn 5/8-11x3 1/2 zinc/clear74.131707
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Wurth IndINHex Head Cap ScrewGrade 8Electrolytic Zinc Basecoat + Topcoats (Climacoat, Climaseal, etc.)3/8-24 x 3 1/2hex cap screw grade 8 zfshr 3/8-24x3 1/2 non-electrolytic zinc & aluminum flakes + matrix900
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SWACOOHHex Head Cap ScrewGrade 2Zinc/Clear1/4-20 x 3 1/21/4-20 x 3 1/2 hhcs gr2 stl zinc500
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SWACOOHHex Head Cap ScrewGrade 5Plain1 1/2-12 x 3 1/21 1/2-12x3 1/2 hex cap sc grade 5 stl p1
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CentenniaCOHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3 1/23/8-16 x 3 1/2 hex c/s 18.8ss719
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CentenniaCOHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 3 1/21/2-13 x 3 1/2 hex c/s gr5 nc dom zinc212
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CentenniaCOHex Head Cap ScrewGrade 5Plain5/16-18 x 3 1/25/16-18 x 3 1/2 hex c/s gr5 nc dom86
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WINAMNHex Head Cap ScrewAluminumZinc/Clear1/4-20 x 3 1/2hex cap screw gr2 zn 1/4-20x3 1/2975
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ManscoMIHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 3 1/21/4-20 x 3-1/2 hex cap gr8 znc yellow partial thread25
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ManscoMIHex Head Cap ScrewGrade 2Zinc/Clear1/4-20 x 3 1/21/4-20 x 3-1/2 hex cap gr2 triv znc274
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ManscoMIHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 3 1/21/2-13x3-1/2 hex cap gr8 znc yellow 25/box240
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CIFILHex Head Cap ScrewGrade 8Plain1 1/2-6x3 1/2 hex cap screw grade 8 plain (3) ()3
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CenturyNYHex Head Cap ScrewSteelGalvanized5/8-11 x 3 1/2 hex hd cap screw steel hot dip galv251
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CenturyNYHex Head Cap ScrewGrade 5Plain1/4-20 x 3 1/2 hex hd cap screw grade 521
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CenturyNYHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/4-10 x 3 1/2 hex hd cap screw 18-846
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CenturyNYHex Head Cap ScrewGrade 5Zinc/Clear1-8 x 3 1/2 hex head cap screw gr. 5 stl zinc per astm b633 fe/zn5 6-8um15
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CenturyNYHex Head Cap ScrewGrade 5Zinc/Clear1-8 x 3 1/2 hex c/s grd 5 special zinc with locking mil-f-18240 temp up to 390f3
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CenturyNYHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3 1/2 hex hd cap screw grade 5 zinc plt193
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CenturyNYHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 3 1/2 hex hd cap screw grade 8 zinc yellow179
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HodellOHHex Head Cap ScrewGrade 8Zinc/Yellow5/8-11 x 3 1/25/8-11x3 1/2 grade 8 hex c/s zy import410
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HodellOHHex Head Cap ScrewGrade 5Plain3/8-16 x 3 1/23/8-16x3 1/2 gr5 hex head cap screw pln n.amer. ()21
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OlanderCAHex Head Cap ScrewGrade 5Zinc/Clear1 1/4-7 x 3 1/21 1/4-7x3 1/2 hex hd grade 5 zn non-rohs11
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Alma BoltMIHex Head Cap ScrewGrade 5Zinc/Yellow5/16-18 x 3 1/25/16-18 x 3 1/2 grade 5 hhcs yellow-zinc350
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EGW USATXHex Head Cap Screw316, 317, A4 StainlessPlain3/4-10 x 3 1/2hcs 3/4-10x3-1/2 316 ss7000
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HodellOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-11 x 3 1/25/8-11x3 1/2 hex c/s 18-8 s/s225
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HodellOHHex Head Cap ScrewGrade 8Plain5/8-18 x 3 1/25/8-18x3-1/2 hhcs grade 8168
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HodellOHHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 3 1/23/4-10x3 1/2 grade 5 hex c/s zinc import2600
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JET FITTINGCAHex Head Cap ScrewGrade 2Plain1/2-13 x 3 1/21/2-13x3 1/2 hhcs gr2 stl zi 403200 b18.2.199
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JET FITTINGCAHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 3 1/23/8-16x3 1/2 hhcs gr8 z&y b18.2.1551
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DeltaTXHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 3 1/2c/s148
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DeltaTXHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 3 1/2c/s70
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DeltaTXHex Head Cap ScrewSteelGalvanized1-8 x 3 1/2hvy hex c/s a325 hdg 1-8x3 1/250
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DeltaTXHex Head Cap ScrewGrade 8Zinc/Clear5/16-18 x 3 1/2c/s270
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DeltaTXHex Head Cap ScrewGrade 8Zinc/Clear1/2-13 x 3 1/2c/s281
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StandardMAHex Head Cap Screw316, 317, A4 StainlessPlain1-8 x 3 1/21-8x3 1/2 hex head cap screw 316 stainless steel5
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StandardMAHex Head Cap Screw316, 317, A4 StainlessPlain3/4-10 x 3 1/23/4-10x3-1/2 hex head cap screw 316 stainless steel160
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HodellOHHex Head Cap ScrewGrade 5Plain5/8-11 x 3 1/25/8-11x3 1/2 grade 5 hex c/s plain import75
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HodellOHHex Head Cap ScrewGrade 5Zinc/Yellow3/4-10 x 3 1/23/4-10x3 1/2 grade 5 hex c/s zy import64
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HodellOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24 x 3 1/23/8-24x3-1/2 hhcs 18-8 ss80
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HodellOHHex Head Cap ScrewGrade 5Plain5/8-11 x 3 1/25/8-11x3 1/2 grade 5 hex c/s plain import75
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HodellOHHex Head Cap ScrewGrade 8Zinc/Yellow3/4-10 x 3 1/23/4-10x3 1/2 grade 8 hex cap screw n. amer. zinc/yellow23
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HodellOHHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 3 1/23/4-10x3 1/2 grade 5 hhcs zn domestic24
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HodellOHHex Head Cap ScrewGrade 5Zinc/Clear7/8-9 x 3 1/27/8-9x3 1/2 gr5 hex head cap screw zn n.amer.66
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HodellOHHex Head Cap ScrewGrade 5Galvanized1-8 x 3 1/21-8 x3 1/2 gr5 c/s hdg n.am.17
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HodellOHHex Head Cap Screw316, 317, A4 StainlessPlain1 1/4-7 x 3 1/21 1/4-7x3 1/2 hex c/s 316 stainless6
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HodellOHHex Head Cap ScrewGrade 8Zinc/Yellow3/4-10 x 3 1/23/4-10x3 1/2 grade 8 hex cap screw n. amer. zinc/yellow23
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HodellOHHex Head Cap ScrewGrade 5Galvanized3/8-16 x 3 1/23/8-16 x3 1/2 gr5 c/s hdg n.am34
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ArdenWIHex Head Cap ScrewGrade 5Zinc/Clear7620 x 3 1/27620x3 1/2 hcs gr5 zcinquire
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ArdenWIHex Head Cap ScrewGrade 8Plain3816 x 3 1/23816x3 1/2 hxcs gr8 plninquire
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ArdenWIHex Head Cap ScrewGrade 5Zinc/Yellow5811 x 3 1/25811x3 1/2 hcs gr5 zyinquire
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BHAMALHex Head Cap ScrewGrade 8Zinc/Yellow5/16-24 x 3 1/25/16-24x3 1/2 hex c/s grade 8 yel zn b18.2.130
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BHAMALHex Head Cap ScrewGrade 2Galvanized1/2-13 x 3 1/21/2-13x3 1/2 hex c/s ft gr2 hdg b18.2.138
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EmpireWAHex Head Cap ScrewGrade 8Zinc/Yellow3/4-10 x 3 1/23/4-10 x 3-1/2 gr8 hex c/s yzp50
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ASFCORPMIHex Head Cap ScrewGrade 8Zinc/Clear1-14 x 3 1/21-14 x 3 1/2 hx hd cap scw gr 8 tri zn dich fe/zn 5cn pkg6
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ASFCORPMIHex Head Cap ScrewGrade 5Plain7/8-9 x 3 1/27/8-9 x 3 1/2 hx hd cap scw gr 5 pkg4
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ASFCORPMIHex Head Cap ScrewGrade 5Galvanized1/2-13 x 3 1/21/2-13 x 3 1/2 hx hd cap scw gr 5 hdg pkg8
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THRDFASTOKHex Head Cap ScrewGrade 5Plain5/8-11 x 3 1/2gr5 hex c/s b18.2.130
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THRDFASTOKHex Head Cap ScrewGrade 2Plain3/4-10 x 3 1/2gr2 hex c/s domestic b18.2.19
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THRDFASTTNHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 3 1/218-8 ss hex c/s b18.2.186
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THRDFASTALHex Head Cap ScrewGrade 5Plain9/16-12 x 3 1/2gr5 hex c/s b18.2.195
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THRDFASTFLHex Head Cap ScrewGrade 8Plain1 1/8-7 x 3 1/2gr8 hex c/s b18.2.120
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THRDFASTALHex Head Cap ScrewGrade 5Zinc/Clear1 1/2-6 x 3 1/2gr5 hex c/s b18.2.11
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THRDFASTALHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1 1/8-7 x 3 1/218-8 ss hex c/s b18.2.16
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THRDFASTOKHex Head Cap ScrewGrade 2Plain5/8-11 x 3 1/2gr2 hex c/s b18.2.11
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BRIGHBESTILHex Head Cap ScrewGrade 9Zinc/Yellow7/8-9 x 3 1/27/8-9x3 1/2 pfc9 hex cap screw - usa zinc yellow3160
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BRIGHBESTILHex Head Cap ScrewGrade 9Zinc/Yellow5/8-11 x 3 1/25/8-11x3 1/2 pfc9 hex cap screw - usa zinc yellow1435
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BRIGHBESTILHex Head Cap ScrewGrade 9Zinc/Yellow7/16-20 x 3 1/27/16-20x3 1/2 pfc9 hex cap screw - usa zinc yellow4200
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BRIGHBESTILHex Head Cap ScrewGrade 9Zinc/Yellow3/4-16 x 3 1/23/4-16x3 1/2 pfc9 hex cap screw - usa zinc yellow2780
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Valley NuWAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28 x 3 1/2nf 18-8 ss hex c/s25
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Valley NuWAHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 3 1/2nc gr8 hex c/s zy usa50
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Valley NuWAHex Head Cap ScrewGrade 9Zinc/Yellow3/4-10 x 3 1/2nc pfc-9 hex c/s zy10
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Valley NuWAHex Head Cap ScrewGrade 8Plain7/16-20 x 3 1/2nf gr8 hex c/s pl usa525
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Valley NuWAHex Head Cap ScrewGrade 8Plain3/8-24 x 3 1/2nf gr8 hex c/s pl usa25
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Valley NuWAHex Head Cap ScrewGrade 8Plain5/16-18 x 3 1/2nc gr8 hex c/s pl usa43
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Valley NuWAHex Head Cap ScrewGrade 8Plain1-14 x 3 1/2nf gr8 hex c/s pl usa13
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Valley NuWAHex Head Cap ScrewGrade 9Zinc/Yellow3/8-16 x 3 1/2nc pfc-9 hex c/s zy2
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Valley NuWAHex Head Cap Screw316, 317, A4 StainlessPlain1/2-13 x 3 1/2316 ss hex c/s usa2
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LightningLAHex Head Cap ScrewGrade B7MBlack Oxide3/4-10 x 3 1/2b7m c/s blk446
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LightningLAHex Head Cap ScrewSuperalloy (Inconel, Hastelloy, Alloy 20)Plain5/8-11 x 3 1/2hex c/s hastelloy c-27621
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LightningLAHex Head Cap ScrewGrade B8Plain7/8 x 3 1/27/8x3-1/2 hex capscrew b8 cl-2658
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