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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.

197,632 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	Grade 8	Zinc/Yellow	5/16-18 x 1 1/4	b1821bh031c125n	155	Contact_Supplier

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WHOLESALE	TN	Hex Head Cap Screw	Grade 2	Zinc/Clear	5/16-18 x 1/2	hex cap screw g2 zinc	100000	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Steel	Zinc/Clear	5/16-18 x 1 1/4	5/16-18 x 1 1/4 flat s0c capscrew steel zinc triv clear b18.2.1	1000	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Grade 2	Zinc/Black	5/16-18 x 1 1/4	5/16-18 x 1 1/4 unc gr 2 hhcs .0002 min zinc trivalent black b18.2.1	310	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Grade 2	Zinc/Black	5/16-18 x 1	5/16-18 x 1 unc gr 2 hhcs .0002 min zinc trivalent black b18.2.1	1438	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 3	5/16-18 x 3 unc hhcs gr8 steel zinc dichromate b18.2.1	50	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1	5/16-18 x 1 unc hhcs stainless steel b18.2.1	1750	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 5/8	5/16-18 x 5/8 hex capscrew stainless steel b18.2.1	542	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Silicon Bronze	Plain	5/16-18 x 1 1/4	5/16-18 x 1-1/4 hhcs silicon bronze b18.2.1	2000	Contact_Supplier
Irwin Ind	Ont	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 unc hex hd. capscrew 18.8 stainless steel b18.2.1	3547	Contact_Supplier
Irwin Ind	Ont	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 unc hhcs stainless steel b18.2.1	250	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 3 1/2	5/16-18 x 3-1/2 grade 5 hhcs zinc triv clear b18.2.1	150	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Grade 5	Zinc/Yellow	5/16-18 x 3	5/16-18 x 3 unc gr5 hhcs zinc dichromate b18.2.1	188	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Steel	Zinc/Clear	5/16-18 x 7/8	5/16-18 x 7/8 grade hhcs zinc with scotchgrip patch b18.2.1	200	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 1 3/4	5/16-18 x 1 3/4 unc gr5 hhcs zinc triv clear b18.2.1	474	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 3/4	5/16-18 x 3/4 steel gr 5 hhcs znc triv clr w/ 3m scotchgrip b18.2.1	250	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 1 1/4	5/16-18 x 1-1/4 steel grade 5 hhcs zinc trivalent clear b18.2.1	400	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 1 1/2	5/16-18 x 1-1/2 unc gr5 hex cap steel zinc b18.2.1	2700	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 1	5/16-18 x 1 unc gr5 hcs zinc trivalent clear b18.2.1	5187	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 3/4	5/16-18 x 3/4 steel grade 5 hex hd cap screw znc trivalent b18.2.1	400	Contact_Supplier
Irwin Ind	Ont	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1 1/4	ms35307-336 5/16-18 x 1-1/4 bolt ss b18.2.1	1096	Contact_Supplier
BDS FASTE	WI	Hex Head Cap Screw	316, 317, A4 Stainless	Passivated	5/16-18 x 5/8	5/16-18 x 5/8 hex cap screw 316ss passivate per qqp35c type 6	96,000	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 5	Zinc/Yellow	5/16-18 x 7/8	scr hhcs grade 5 (zy) 5/16-18x7/8	265,665	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1	scr hhcs (18 8) 5/16-18x1	98,483	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 1	scr hhcs grade 5 (zt) 5/16-18x1	120	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 3	scr hhcs grade 8 (zy) 5/16-18x3	27,152	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 9	scr hhcs grade 5 (zn) 5/16-18x9	550	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 2	scr hhcs (18 8) 5/16-18x2	14,641	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Steel	Zinc/Clear	5/16-18 x 3/4	scr t/c/s type-23 hexwhd-(zn) 5/16-18x3/4	4,977	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 1	scr hhcs grade 8 (zy) 5/16-18x1	54,471	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 5	Zinc/Yellow	5/16-18 x 1 1/4	scr hhcs ft grade 5 (zy) 5/16-18x1 1/4	22,302	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 3	scr hhcs ft (18 8) 5/16-18x3	6,700	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 2 1/4	scr hhcs grade 8 (zy) 5/16-18x2 1/4	22,073	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 4	scr hhcs grade 5 (zt) 5/16-18x4	40,824	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 5	Zinc/Yellow	5/16-18 x 4	scr hhcs grade 5 (zy) 5/16-18x4	10,126	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 2 1/2	scr hhcs grade 8 (zy) 5/16-18x2 1/2	16,988	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 1	scr hhcs grade 5 (zn) 5/16-18x1	52,199	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1	scr hhcs ft (18 8) 5/16-18x1	20,002	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 5 3/4	scr hhcs grade 5 (zt) 5/16-18x5 3/4	5,241	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 3 1/2	scr hhcs ft grade 5 (zt) 5/16-18x3 1/2	5,841	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 4 1/2	scr hhcs grade 8 (zy) 5/16-18x4 1/2	9,662	Contact_Supplier
Wurth Ada	MN	Hex Head Cap Screw	Steel	Zinc/Clear	5/16-18 x 1	scr t/c/s type-f hexwhd-steel (zt) 5/16-18x1	17,528	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 1 3/4	gr2 hex c/s b18.2.1	9,790	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 2 3/4	gr2 hex c/s b18.2.1	9,334	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 2	gr2 hex c/s b18.2.1	3,506	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 3 1/4	gr2 hex c/s b18.2.1	1,555	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 3 1/2	gr2 hex c/s b18.2.1	1,400	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 2 1/4	gr2 hex c/s b18.2.1	1,420	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Zinc/Clear	5/16-18 x 3/8	gr2 hex c/s b18.2.1	1,096	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 1 1/4	gr2 hex c/s b18.2.1	629	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 4	gr2 hex c/s b18.2.1	617	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 1 1/2	gr2 hex c/s b18.2.1	1,023	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 3 3/4	gr2 hex c/s b18.2.1	502	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 5	gr2 hex c/s b18.2.1	429	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 6	gr2 hex c/s b18.2.1	425	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Brass	Plain	5/16-18 x 2	hex c/s b18.2.1	372	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Zinc/Clear	5/16-18 x 2 1/4	gr2 hex c/s b18.2.1	964	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Plain	5/16-18 x 5 1/2	gr2 hex c/s b18.2.1	904	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Zinc/Clear	5/16-18 x 1 3/4	gr2 hex c/s b18.2.1	299	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 2	Zinc/Clear	5/16-18 x 2	gr2 hex c/s b18.2.1	892	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 7/8	gr8 hex c/s z&y b18.2.1	242	Contact_Supplier
THRDFAST	FL	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 5 1/2	gr5 hex c/s b18.2.1	238	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Zinc/Black	5/16-18 x 7/8	nc gr5 hex c/s zb imp	242	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Zinc/Black	5/16-18 x 2 1/2	nc gr5 hex c/s zb imp	36	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Plain	5/16-18 x 7/8	nc gr5 hex c/s pl imp	393	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Zinc/Black	5/16-18 x 3 1/4	nc gr5 hex c/s zb imp	39	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Zinc/Black	5/16-18 x 1 1/2	nc gr5 hex c/s zb imp	13	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Zinc/Black	5/16-18 x 1 1/4	nc gr5 hex c/s zb imp	33	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Zinc/Black	5/16-18 x 3	nc gr5 hex c/s zb imp	4	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Plain	5/16-18 x 2 1/4	nc gr5 hex c/s pl imp	476	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Zinc/Black	5/16-18 x 5/8	nc gr5 hex c/s zb imp	869	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Zinc/Black	5/16-18 x 1/2	nc gr5 hex c/s zb imp	728	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Zinc/Black	5/16-18 x 5 1/2	nc gr5 hex c/s zb imp	91	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Zinc/Black	5/16-18 x 4	nc gr5 hex c/s zb imp	3	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Plain	5/16-18 x 6	nc gr5 hex c/s pl imp	49	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Plain	5/16-18 x 5 1/2	nc gr5 hex c/s pl imp	16	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Plain	5/16-18 x 3 1/2	nc gr5 hex c/s pl imp	35	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Grade 5	Zinc/Black	5/16-18 x 6	nc gr5 hex c/s zb imp	4	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Silicon Bronze	Painted	5/16-18 x 1/2	nc sil-bronze hex c/s	17	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Silicon Bronze	Painted	5/16-18 x 1	nc sil-bronze hex c/s	34	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Silicon Bronze	Painted	5/16-18 x 3/4	nc sil-bronze hex c/s	80	Contact_Supplier
Valley Nu	WA	Hex Head Cap Screw	Silicon Bronze	Painted	5/16-18 x 1 1/2	nc sil-bronze hex c/s	55	Contact_Supplier
QFS	MI	Hex Head Cap Screw	Brass	Plain	5/16-18 x 1/2	c/s , USS thread b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	Brass	Plain	5/16-18 x 1 1/2	c/s , USS thread b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	Brass	Plain	5/16-18 x 1 3/4	c/s , USS thread b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	Brass	Plain	5/16-18 x 2	c/s , USS thread b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 3/4	c/s , USS thread (t-316) b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 1/2	c/s , USS thread (t-316) b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 1	c/s , USS thread (t-316) b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 5/8	c/s , USS thread (t-316) b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 1 3/4	c/s , USS thread (t-316) b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 2	c/s , USS thread (t-316) b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 2 1/4	c/s , USS thread (t-316) b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 4	c/s , USS thread (t-316) b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	5/16-18 x 3 1/2	c/s , USS thread (t-316) b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 5/8	c/s , USS thread (18-8) b18.2.1	stock	Contact_Supplier
QFS	MI	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 3/4	c/s , USS thread (18-8) b18.2.1	300	Contact_Supplier
QFS	MI	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1/2	c/s , USS thread (18-8) b18.2.1	400	Contact_Supplier
QFS	MI	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1	c/s , USS thread (18-8) b18.2.1	400	Contact_Supplier
QFS	MI	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 2 1/4	c/s , USS thread (18-8) b18.2.1	200	Contact_Supplier
QFS	MI	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1 3/4	c/s , USS thread (18-8) b18.2.1	300	Contact_Supplier
QFS	MI	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 2	c/s , USS thread (18-8) b18.2.1	100	Contact_Supplier

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