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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.

193,716 Hex Head Cap Screw, showing 200, (click on any line for more information)

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Supplier	Loc	Type	Material	Finish	Size	Description	Qty
Century	FL	Hex Head Cap Screw	Steel	Plain	5/16-18 x 7/8	5/16-18 x 7/8 hex hd cap screw (GRADE 5 TRIVALENT ZINC CLEAR) (GRADE 5 TRIVALENT ZINC CLEAR)	170	Contact_Supplier
Century	FL	Hex Head Cap Screw	Steel	Plain	5/16-18 x 1 1/2	5/16-18 x 1 1/2 hex hd cap screw (GRADE 5 ZINC) (GRADE 5 ZINC)	700	Contact_Supplier
Century	FL	Hex Head Cap Screw	Steel	Plain	5/16-18 x 2 1/2	5/16-18 x 2 1/2 hex hd cap screw (GRADE 5 ZINC PLT) (GRADE 5 ZINC PLT)	4	Contact_Supplier
Century	FL	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 1 1/4	b1821bh031c125n	385	Contact_Supplier

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METRO IND	OH	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 7/8	hex c/s s/s	84	Contact_Supplier
TownCountry	AR	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 3/4	5/16-18 x 3/4 hex cap screw s.s. 18-8	755	Contact_Supplier
TownCountry	AR	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1 3/4	5/16-18 x 1 3/4 hex cap screw s.s. 18-8	27	Contact_Supplier
TownCountry	AR	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 3 1/4	5/16-18 x 3 1/4 hex cap screw gr.5 zinc	12	Contact_Supplier
TownCountry	AR	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 6	5/16-18 x 6 hex cap screw gr. 5 zinc	125	Contact_Supplier
Set Screw	IL	Hex Head Cap Screw	Steel	Plain	5/16-18 x 3/4	5/16-18 x 3/4 (loa) steel not hardened hex head cap screw	inquire	Contact_Supplier
Set Screw	IL	Hex Head Cap Screw	Steel	Plain	5/16-18 x 1.0	5/16-18 x 1.0 (loa) steel not hardened hex head cap screw	inquire	Contact_Supplier
American	NY	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 4	5/16-18 x 4 hex cap gr 5 zinc pl	800	Contact_Supplier
American	NY	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 1 1/4	5/16-18 x 1 1/4 hex cap grade 8 zy	1100	Contact_Supplier
American	NY	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 1 3/4	5/16-18 x 1 3/4 hex cap grade 8 zinc yellow	740	Contact_Supplier
American	NY	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 1 1/2	hex cap zp	1000	Contact_Supplier
American	NY	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 2	hex cap zp	100	Contact_Supplier
American	NY	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 3 1/4	hex cap zp	350	Contact_Supplier
TownCountry	AR	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1 1/2	5/16-18 x 1 1/2 hex cap screw s.s. 18-8	37	Contact_Supplier
SII	IN	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 3	5/16-18 x 3 grd8 yellow zinc hex cap screw) b18.2.1	391	Contact_Supplier
SII	IN	Hex Head Cap Screw	Grade 2	Zinc/Clear	5/16-18 x 1	5/16-18 x 1 grd2 zinc hex cap screw b18.2.1	1000	Contact_Supplier
SII	IN	Hex Head Cap Screw	Grade 2	Zinc/Clear	5/16-18 x 2 1/2	5/16-18x2 1/2 (pt) grade 2 hex cap screw zinc cr+3 b18.2.1	63	Contact_Supplier
SII	IN	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 4	5/16-18 x 4 grd8 yellow zinc hex cap screw) b18.2.1	169	Contact_Supplier
SII	IN	Hex Head Cap Screw	Grade 2	Zinc/Clear	5/16-18 x 2 3/4	5/16-18x2 3/4 (pt) grade 2 hex cap screw zinc cr+3 b18.2.1	450	Contact_Supplier
SII	IN	Hex Head Cap Screw	Grade 2	Zinc/Clear	5/16-18 x 5	5/16-18x5 (pt) grade 2 hex cap screw zinc cr+3 b18.2.1	180	Contact_Supplier
SII	IN	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1 1/4	5/16-18 x 1-1/4 hex cap screws coarse stainless 18-8 b18.2.1	47	Contact_Supplier
SII	IN	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1	5/16-18 x 1 18-8 stainless steel hex cap screw) b18.2.1	252	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 5	Plain	5/16-18 x 1 1/4	5/16-18x1 1/4 hex c/s gr5 plain b18.2.1	182	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 1 3/4	5/16-18x1 3/4 hex c/s gr2 plain b18.2.1	86	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 5	Plain	5/16-18 x 2	5/16-18x2 hex c/s gr5 plain b18.2.1	60	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 8	Plain	5/16-18 x 2 1/4	5/16-18x2 1/4 hex c/s gr8 plain b18.2.1	200	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 8	Plain	5/16-18 x 3 1/4	5/16-18x3 1/4 hex c/s gr8 plain b18.2.1	200	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 5	Plain	5/16-18 x 4 1/2	5/16-18x4 1/2 hex c/s gr5 plain b18.2.1	200	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 1	5/16-18x1 hex cap screw grade 2 black b18.2.1	500	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 1 1/4	5/16-18x1-1/4 hex cap screw grade 8 yellow zinc b18.2.1	200	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 8	Plain	5/16-18 x 1 1/2	5/16-18x1 1/2 hex cap screw grade 8 plain b18.2.1	2000	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 5	Plain	5/16-18 x 1 3/4	5/16-18x1 3/4 hex cap screw grade 5 b18.2.1	2526	Contact_Supplier
QFC	TX	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 2 1/4	5/16-18x2 1/4 hex cap screw 316 s/s b18.2.1	440	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 8	Plain	5/16-18 x 2 1/4	5/16-18x2-1/4 hex cap screw grade 8 b18.2.1	668	Contact_Supplier
QFC	TX	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 3	5/16-18x3 hex cap screw 316 stainless steel b18.2.1	2000	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 3	5/16-18x3 hex cap screw grade 8 zy b18.2.1	2000	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 3	5/16-18x3 hex cap screw grade 8 zy b18.2.1	1350	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 8	Plain	5/16-18 x 3 1/2	5/16-18x3 1/2 hhcs grade 8 pl w/nylon patch b18.2.1	225	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 5	Plain	5/16-18 x 4 1/4	5/16-18x4 1/4 hex cap screw grade 5 b18.2.1	205	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 5	Plain	5/16-18 x 7	5/16-18x7 hex cap screw grade 5 b18.2.1	1474	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 5	Plain	5/16-18 x 3/4	5/16-18x3/4 hex cap screw grade 5 b18.2.1	3282	Contact_Supplier
QFC	TX	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 3/4	5/16-18x3/4 hex cap screw 304 s/s domestic b18.2.1	83	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1/2	5/16-18 x 1/2 hex cap screws 18-8 stainless b18.2.1	1160	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 3/4	5/16-18 x 3/4 hex cap screws 18-8 stainless b18.2.1	1359	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 3/4	5/16-18 x 3/4 hex cap screws 316 stainless b18.2.1	238	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 7/8	5/16-18 x 7/8 hex cap screws 18-8 stainless b18.2.1	243	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1	5/16-18 x 1 hex cap screws 18-8 stainless b18.2.1	243	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 1	5/16-18 x 1 hex cap screws 316 stainless b18.2.1	114	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1 3/4	5/16-18 x 1 3/4 hex cap screws 18-8 stainless b18.2.1	66	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 2	5/16-18 x 2 hex cap screws 18-8 stainless b18.2.1	1671	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 2 1/4	5/16-18 x 2 1/4 hex cap screws 18-8 stainless b18.2.1	200	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 2 1/2	5/16-18 x 2 1/2 hex cap screws 18-8 stainless b18.2.1	974	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 2 3/4	5/16-18 x 2 3/4 hex cap screws 316 stainless b18.2.1	96	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 3	5/16-18 x 3 hex cap screws 18-8 stainless b18.2.1	868	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 3	5/16-18 x 3 hex cap screws 316 stainless b18.2.1	110	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 4	5/16-18 x 4 hex cap screws 18-8 stainless b18.2.1	188	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 5	5/16-18 x 5 hex cap screws 18-8 stainless b18.2.1	282	Contact_Supplier
B & K FAST	PA	Hex Head Cap S crew	Grade 2	Zinc/Clear	5/16-18 x 3/4	5/16-18x3/4 hex cap screws grade 2 zinc b18.2.1	40	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 1 1/2	5/16-18 x 1 1/2 hex cap screws gr 5 zinc b18.2.1	295	Contact_Supplier
TSF	TX	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 3/4	hex hd cap screw gr5 zinc 5/16-18 x 3/4	786	Contact_Supplier

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