5/16-18 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.

166,432 Hex Head Cap Screw, showing 200, (click on any line for more information)

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Spring BoTXHex Head Cap ScrewSuperalloy (Inconel, Hastelloy, Alloy 20)Plain5/16-18 x 1/25/16(18) x 1/2 hex cap screw A453 grade 660B (A286) b18.2.1 b18.2.1 usainquire
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Spring BoTXHex Head Cap ScrewDuplex Stainless (2205, Ferralium etc.)Plain5/16-18 x 3/45/16(18) x 3/4 hex cap screw d2205 b18.2.1 b18.2.1 usainquire
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Spring BoTXHex Head Cap ScrewDuplex Stainless (2205, Ferralium etc.)Plain5/16-18 x 1 3/45/16(18) x 1-3/4 hex cap screw d2205 b18.2.1 b18.2.1 usainquire
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Spring BoTXHex Head Cap ScrewSuperalloy (Inconel, Hastelloy, Alloy 20)Plain5/16-18 x 15/16(18) x 1 hex cap screw al6xn b18.2.1 b18.2.1 usainquire
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ManscoMIHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 125/16-18x12 hex cap gr5 triv znc54
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ManscoMIHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 7/85/16-18x7/8 hex cap 18-8 s/s2,300
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ManscoMIHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 35/16-18x3 hex cap gr5 znc 100/box1,460
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ManscoMIHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 1 1/85/16-18x1-1/8 hex cap gr5 triv znc 25/bag55
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ManscoMIHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 1 1/45/16-18x1-1/4 hex cap 18-8 s/s 100/box850
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ManscoMIHex Head Cap ScrewGrade 2Zinc/Black5/16-18 x 35/16-18x3 hex cap gr2 triv blk znc350
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ManscoMIHex Head Cap ScrewGrade 2Plain5/16-18 x 1 1/45/16-18x1-1/4 hex cap gr2 pln1,000
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ManscoMIHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 3 1/25/16-18x3-1/2 hex cap gr5 znc395
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ManscoMIHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 25/16-18x2 hex cap gr2 triv znc400
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ManscoMIHex Head Cap ScrewBrassPlain5/16-18 x 3/45/16-18x3/4 hex cap brass54
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ManscoMIHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 25/16-18x2 hex cap gr8 znc yellow 100/box300
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ManscoMIHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 5 1/25/16-18x5-1/2 hex cap gr2 triv znc92
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ManscoMIHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 45/16-18x4 hex cap gr5 znc 50/box157
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ManscoMIHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 45/16-18x4 hex cap gr5 triv znc96
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ManscoMIHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 3 1/25/16-18x3-1/2 hex cap gr8 znc yellow 50/box132
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ManscoMIHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 65/16-18x6 hex cap gr5 znc 50/box25
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CIFILHex Head Cap ScrewGrade 8Phosphate5/16-18 x 5/85/16-18x5/8 hex cap screw grade 8 phos coated for 72 hours to red rust42
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CIFILHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 2 1/25/16-18x2 1/2 hex cap screw 18-8 s/s steel50
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CIFILHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 1 3/45/16-18x1 3/4 hex cap screw partial thread 18-8 s/s steel50
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CIFILHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 1 3/45/16-18x1 3/4 hex cap screw full thread 18-8 s/s steel102
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CIFILHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 15/16-18x1 hex cap screw 18-8 s/s steel126
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CIFILHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 25/16-18x2 hex cap screw 18-8 s/s steel350
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AmericanNYHex Head Cap ScrewSteelZinc/Clear5/16-18 x 3 1/2hex cap zp550
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AmericanNYHex Head Cap ScrewSteelZinc/Clear5/16-18 x 65/16-18 x 6 hex cap screw zinc pl350
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AmericanNYHex Head Cap ScrewSteelZinc/Clear5/16-18 x 3hex cap z5200
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AmericanNYHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 25/16-18 x 2 hex cap grade 5 zp23
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AmericanNYHex Head Cap ScrewSteelZinc/Clear5/16-18 x 1 3/45/16-18 x 1 3/4 hex cap 5 zp1550
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AmericanNYHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 2 1/25/16-18 x 2 1/2 hex cap grade 5 zp694
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AmericanNYHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 3hex cap zp2100
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AmericanNYHex Head Cap ScrewSteelZinc/Clear5/16-18 x 2 3/45/16-18 x 2 3/4 hex cap 5 zp1090
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AmericanNYHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 5/85/16-18 x 5/8 hex cap stainless350
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AmericanNYHex Head Cap ScrewSteelZinc/Clear5/16-18 x 1/25/16-18 x 1/2 hex cap bolt zp1400
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AmericanNYHex Head Cap ScrewSteelZinc/Clear5/16-18 x 1 1/45/16-18 x 1 1/4 hex cap zp625
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AmericanNYHex Head Cap ScrewSteelZinc/Clear5/16-18 x 2 1/2hex cap900
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AmericanNYHex Head Cap ScrewSteelZinc/Clear5/16-18 x 55/16-18 x 5 hex cap screw zinc pl100
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AmericanNYHex Head Cap ScrewGrade 5Black Oxide5/16-18 x 1/25/16-18 x 1/2 hex cap grade 5 black ox1750
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AmericanNYHex Head Cap ScrewSteelPlain5/16-18 x 3/45/16-18 x 3/4 hex cap screw plain500
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AmericanNYHex Head Cap ScrewSteelPlain5/16-18 x 3/45/16-18 x 3/4 hex cap 5 black1150
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IRFNCHex Head Cap ScrewSteelZinc/Clear5/16-18 x 3/45/16-18x3/4 ind hex flat washer sems dog point w/patch with zn/ni with clear Cr3+ cr(3+)369534
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IRFNCHex Head Cap ScrewSteelZinc/Clear5/16-18 x 1 1/2hex cap2250
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IRFNCHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 4hex c/sr920
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IRFNCHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 1hex c/sr1450
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IRFNCHex Head Cap ScrewGrade 8Zinc/Clear5/16-18 x 1hex c/sr1086
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IRFNCHex Head Cap ScrewGrade 2Aluminum zinc flake (Dacromet, Magnigard, Doerken)5/16-18 x 1hex c/sr clr & magnagard105
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IRFNCHex Head Cap ScrewGrade 2Zinc/Yellow5/16-18 x 1hex c/sr ylw cad mag2852
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IRFNCHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 1hex c/sr4180
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IRFNCHex Head Cap ScrewGrade 5Plain5/16-18 x 1 3/4hex c/sr1275
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IRFNCHex Head Cap ScrewGrade 2Plain5/16-18 x 1 1/2hex c/sr clr cad mag1830
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IRFNCHex Head Cap ScrewGrade 2Zinc/Black5/16-18 x 1 3/4hex c/sr1800
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IRFNCHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 1 1/2hex c/sr2270
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IRFNCHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 1 7/8hex c/sr1406
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IRFNCHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 2hex c/sr700
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IRFNCHex Head Cap ScrewGrade 2Zinc/Yellow5/16-18 x 2hex c/sr ylw cad mag224
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IRFNCHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 2hex c/sr1000
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 1/2hex c/s100
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 3/4hex c/s500
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 1hex c/s2100
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 1/2hex c/s230
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 1/2hex c/s1700
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 1hex c/s45800
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 8hex c/s125
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 2hex c/s187
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 8hex c/s35
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UNEEDANJHex Head Cap ScrewGrade 5Plain5/16-18 x 3/4hex c/sr gr.5610
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 3hex c/s160
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 7/8hex c/s1300
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 1hex c/s500
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 3/4hex c/s338
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 7/8hex c/s300
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UNEEDANJHex Head Cap ScrewSteelPlain5/16-18 x 5/8hex c/s800
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OlanderCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 25/16-18 x 2 hex hd f/t sst rohs1607
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ACFCAHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 25/16-18x2 hex cap screw grade 2 z/p rohs compliant8400
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OBRIENOHHex Head Cap ScrewGrade 2Plain5/16-18 x 1/2hhcs gr22160
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OBRIENOHHex Head Cap ScrewGrade 5Plain5/16-18 x 3 3/4hhcs grd 5 zin383
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OBRIENOHHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 1 3/8hhcs z&y255
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OBRIENOHHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 4hhcs gr2239
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OBRIENOHHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 6hhcs gr2312
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OBRIENOHHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 7hhcs gr5225
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OBRIENOHHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 1 1/8hhcs gr5200
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OBRIENOHHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 5hhcs gr2200
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OBRIENOHHex Head Cap Screw316, 317, A4 StainlessPlain5/16-18 x 3/4hhcs 316 stainless192
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OBRIENOHHex Head Cap ScrewGrade 5Plain5/16-18 x 3 1/4hhcs grd 5 zin97
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OBRIENOHHex Head Cap ScrewGrade B8Plain5/16-18 x 1 1/4hhcs sa193-b8 s/s96
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OBRIENOHHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 5/8hhcs z&y84
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OBRIENOHHex Head Cap Screw316, 317, A4 StainlessPlain5/16-18 x 7/8hhcs 316 stainless79
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OBRIENOHHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 3 1/4hhcs gr849
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OBRIENOHHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 6hhcs gr848
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OBRIENOHHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 4 1/2hhcs gr848
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AFPILHex Head Cap ScrewSteelZinc/Yellow5/16-18 x 2c/s gr#51000
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AFPILHex Head Cap ScrewSteelZinc/Clear5/16-18 x 3c/s gr#550
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AFPILHex Head Cap ScrewSteelPlain5/16-18 x 3c/s gr # 2700
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AFPILHex Head Cap ScrewSteelPlain5/16-18 x 3 1/4c/s gr#5400
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AFPILHex Head Cap ScrewSteelZinc/Clear5/16-18 x 3/4c/s gr#53907
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AFPILHex Head Cap ScrewSteelZinc/Yellow5/16-18 x 5 1/25/16-18x5-1/2 c/s gr#5 dichromate600
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AFPILHex Head Cap ScrewSteelZinc/Yellow5/16-18 x 1 1/4c/s gr#83186
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AFPILHex Head Cap ScrewSteelZinc/Yellow5/16-18 x 1c/s gr# 51225
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AFPILHex Head Cap ScrewSteelZinc/Clear5/16-18 x 1c/s gr#22115
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AFPILHex Head Cap ScrewSteelZinc/Yellow5/16-18 x 1c/s gr#8 & dichromate808
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AFPILHex Head Cap ScrewSteelZinc/Yellow5/16-18 x 3/4c/s gr#5909
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AFPILHex Head Cap ScrewSteelZinc/Clear5/16-18 x 1/2c/s gr#53100
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AFPILHex Head Cap ScrewSteelPlain5/16-18 x 5 1/25/16-18x5-1/2 c/s gr#5200
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AFPILHex Head Cap ScrewSteelPlain5/16-18 x 4 1/25/16-18x4-1/2 c/s gr#5300
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AFPILHex Head Cap ScrewSteelPlain5/16-18 x 5c/s gr#5200
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AFPILHex Head Cap ScrewSteelZinc/Yellow5/16-18 x 2 3/4c/s gr#8 dichromate198
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THRDFASTOKHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 3 1/2gr8 hex c/s z&y b18.2.1125
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THRDFASTOKHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 1 1/2gr2 hex c/s b18.2.145
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THRDFASTOKHex Head Cap Screw316, 317, A4 StainlessPlain5/16-18 x 1 1/4t-316 ss hex c/s b18.2.138
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THRDFASTOKHex Head Cap ScrewBrassPlain5/16-18 x 1 1/2hex c/s b18.2.132
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THRDFASTTNHex Head Cap ScrewGrade 2Plain5/16-18 x 1 1/2gr2 hex c/s b18.2.12,398
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THRDFASTTNHex Head Cap ScrewGrade 2Plain5/16-18 x 2gr2 hex c/s b18.2.1500
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THRDFASTTNHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 1 3/4gr2 hex c/s b18.2.1500
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THRDFASTTNHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 2 3/4gr8 hex c/s z&y b18.2.1477
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THRDFASTTNHex Head Cap ScrewGrade 2Plain5/16-18 x 3gr2 hex c/s b18.2.1303
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THRDFASTTNHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 5 1/2gr5 hex c/s b18.2.1285
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THRDFASTTNHex Head Cap Screw316, 317, A4 StainlessPlain5/16-18 x 1/2t-316 ss hex c/s b18.2.1233
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THRDFASTTNHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 5gr8 hex c/s z&y b18.2.1250
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THRDFASTTNHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 7/8gr2 hex c/s b18.2.1200
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THRDFASTTNHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 518-8 ss hex c/s b18.2.1100
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THRDFASTTNHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 6gr8 hex c/s z&y b18.2.1100
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THRDFASTTNHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 4 1/218-8 ss hex c/s b18.2.193
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SpencerOHHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 5 3/49600
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