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3 1/2 inch length Hex Cap Screws (ASME B18. 2.1)

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.

Hex Head Cap Screw (b18.2.1), showing 200, (click on any line for more information)

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Supplier	Loc	Type	Material	Finish	Size	Description	Qty
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Ababa	CA	Hex Head Cap Screw	Steel	Plain	1/4 x 3 1/2	1/4 x 3-1/2 sds hvy duty hex screw 3/8 hd b18.2.1	2	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	1-8 x 3 1/2	1-8 x 3 1/2 h/c 316 s/s b18.2.1	10	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	1-8 x 3 1/2	1-8 x 3 1/2 h/c dom gr 8 yel znc b18.2.1	41	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	Grade 5	Plain	1/4-20 x 3 1/2	1/4-20 x 3 1/2 h/c al-2000 (black) gr 5 b18.2.1	27	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	Grade 5	Zinc/Clear	1/4-20 x 3 1/2	1/4-20 x 3 1/2 h/c gr 5 znc b18.2.1	300	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	1/4-20 x 3 1/2	1/4-20 x 3 1/2 h/c dom gr 8 yel znc b18.2.1	384	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	1/4-20 x 3 1/2	1/4-20 x 3 1/2 h/c s/s b18.2.1	100	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	1/4-28 x 3 1/2	1/4-28 x 3 1/2 h/c dom gr 8 yel znc b18.2.1	50	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 3 1/2	5/16-18 x 3 1/2 h/c gr 5 znc b18.2.1	380	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-18 x 3 1/2	5/16-18 x 3 1/2 h/c dom gr 8 yel znc b18.2.1	2	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 3 1/2	5/16-18 x 3 1/2 h/c s/s b18.2.1	237	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-24 x 3 1/2	5/16-24 x 3 1/2 h/c dom gr 8 yel znc b18.2.1	314	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	Grade 5	Zinc/Clear	3/8-16 x 3 1/2	3/8-16 x 3 1/2 h/c gr 5 znc b18.2.1	300	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	3/8-16 x 3 1/2	3/8-16 x 3 1/2 h/c 316 s/s b18.2.1	31	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	3/8-16 x 3 1/2	3/8-16 x 3 1/2 h/c dom gr 8 yel znc b18.2.1	156	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	3/8-16 x 3 1/2	3/8-16 x 3 1/2 h/c s/s b18.2.1	225	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	3/8-24 x 3 1/2	3/8-24 x 3 1/2 h/c dom gr 8 yel znc b18.2.1	94	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	Grade 5	Zinc/Clear	7/16-14 x 3 1/2	7/16-14 x 3 1/2 h/c gr 5 znc b18.2.1	199	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	7/16-14 x 3 1/2	7/16-14 x 3 1/2 h/c dom gr 8 yel znc b18.2.1	295	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	7/16-14 x 3 1/2	7/16-14 x 3 1/2 h/c s/s 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 3 1/2	5/16-18 x 3-1/2 18-8 stainless steel hex cap screw) b18.2.1	490	Contact_Supplier
SII	IN	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/8-11 x 3 1/2	5/8-11 x 3-1/2 grd5 hex cap screw/zinc b18.2.1	50	Contact_Supplier
SII	IN	Hex Head Cap Screw	Grade 8	Zinc/Yellow	3/8-16 x 3 1/2	3/8-16 x 3-1/2 grd8 yellow zinc hex cap screw) b18.2.1	53	Contact_Supplier
SII	IN	Hex Head Cap Screw	Grade 2	Zinc/Clear	1/4-20 x 3 1/2	1/4-20x3 1/2 (pt) grade 2 hex cap screw zinc cr+3 b18.2.1	100	Contact_Supplier
SII	IN	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-24 x 3 1/2	5/16-24 x 3-1/2 grd8 yellow zinc hex cap screw) b18.2.1	5	Contact_Supplier
SII	IN	Hex Head Cap Screw	Grade 8	Zinc/Yellow	3/8-24 x 3 1/2	3/8-24 x 3-1/2 (pt) hex cap screws grade 8 fine zinc-yellow bake b18.2.1	25	Contact_Supplier
SII	IN	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	3/4-10 x 3 1/2	3/4-10 x 3 1/2 hcs 18-8 stainless b18.2.1	40	Contact_Supplier
SII	IN	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/8-18 x 3 1/2	5/8-18 x 3-1/2 grd8 yellow zinc hex cap screw) b18.2.1	5	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 5	Plain	3/8-16 x 3 1/2	3/8-16x3 1/2 hex c/s gr5 plain b18.2.1	165	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 8	Zinc/Clear	3/8-24 x 3 1/2	3/8-24 x 3 1/2 hex cap screws gr 8 zinc b18.2.1	10	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 2	Plain	7/16-14 x 3 1/2	7/16-14 x 3 1/2 hex cap screws gr 2 plain b18.2.1	14	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 9	Zinc/Yellow	7/16-14 x 3 1/2	7/16-14 x 3 1/2 hex cap screws gr 9 (mc12) z yellow b18.2.1	8	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 2	Zinc/Clear	1/2-13 x 3 1/2	1/2-13 x 3 1/2 hex cap screws gr 2 zinc b18.2.1	2	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 8	Zinc/Clear	1/2-13 x 3 1/2	1/2-13 x 3 1/2 hex cap screws gr 8 zinc b18.2.1	1	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 2	Zinc/Clear	1/2-20 x 3 1/2	1/2-20 x 3 1/2 hex cap screws gr 2 zinc b18.2.1	5	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 5	Plain	1/2-20 x 3 1/2	1/2-20 x 3 1/2 hex cap screws gr 5 plain b18.2.1	2	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 5	Zinc/Clear	1/2-20 x 3 1/2	1/2-20 x 3 1/2 hex cap screws gr 5 zinc b18.2.1	108	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 9	Zinc/Clear	1/2-20 x 3 1/2	1/2-20 x 3 1/2 hex cap screws gr 9 (mc12) zinc b18.2.1	31	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 9	Zinc/Yellow	1/2-20 x 3 1/2	1/2-20 x 3 1/2 hex cap screws gr 9 (mc12) z yellow b18.2.1	25	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 5	Plain	9/16-12 x 3 1/2	9/16-12 x 3 1/2 hex cap screws gr 5 plain b18.2.1	238	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 5	Zinc/Clear	9/16-12 x 3 1/2	9/16-12 x 3 1/2 hex cap screws gr 5 zinc b18.2.1	355	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 8	Zinc/Clear	9/16-12 x 3 1/2	9/16-12 x 3 1/2 hex cap screws gr 8 zinc b18.2.1	3	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 5	Plain	9/16-18 x 3 1/2	9/16-18 x 3 1/2 hex cap screws gr 5 plain b18.2.1	1	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 5	Zinc/Clear	9/16-18 x 3 1/2	9/16-18 x 3 1/2 hex cap screws gr 5 zinc b18.2.1	163	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 5	Zinc/Yellow	9/16-18 x 3 1/2	9/16-18 x 3 1/2 hex cap screws gr 5 z yellow b18.2.1	18	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 8	Plain	9/16-18 x 3 1/2	9/16-18 x 3 1/2 hex cap screws gr 8 plain b18.2.1	253	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 9	Zinc/Clear	9/16-18 x 3 1/2	9/16-18 x 3 1/2 hex cap screws gr 9 (mc12) zinc b18.2.1	1	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 9	Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)	5/8-11 x 3 1/2	5/8-11 x 3 1/2 hex cap screws gr 9 dacro b18.2.1	43	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 9	Zinc/Clear	5/8-11 x 3 1/2	5/8-11 x 3 1/2 hex cap screws gr 9 (mc12) zinc b18.2.1	3	Contact_Supplier

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