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1 3/8 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.

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Supplier	Loc	Type	Material	Finish	Size	Description	Qty
Buy Hex Cap Screws from one of our FCH Network Members
GLF	OH	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 1 3/8	5/16-18x1-3/8 hhcs grade 5 stl zc b18.2.1 () () ()	73,000	Contact_Supplier
GLF	OH	Hex Head Cap Screw	Grade 5	Plain	1/2-13 x 1 3/8	1/2-13x1-3/8 hhcs grade 5 stl pln b18.2.1 () () ()	351,000	Contact_Supplier
GLF	OH	Hex Head Cap Screw	Grade 8	Zinc/Yellow	3/8-16 x 1 3/8	3/8-16x1-3/8 hhcs grade 8 stl zy b18.2.1 () () ()	867,000	Contact_Supplier
GLF	OH	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/16-24 x 1 3/8	5/16-224x1-3/8 hex cap-fine thread-partial thread-grade 8-yellow b18.2.1 () () ()	475,000	Contact_Supplier
GLF	OH	Hex Head Cap Screw	Grade 8	Zinc/Yellow	7/16-20 x 1 3/8	7/16-20x1-3/8 hex cap-fine thread-grade 8-yellow-cr6 b18.2.1 () () ()	412,000	Contact_Supplier
Field Fas	IL	Hex Head Cap Screw	Grade 5	Black Oxide	3/8-16 x 1 3/8	3/8-16 x 1 3/8 hex cap screw grade 5 blk ox_x000d_manufactured to asme b18.2.1 and sae j429 specifications	400	Contact_Supplier
BHAM	AL	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	3/8-16 x 1 3/8	3/8-16 x 1 3/8 hex c/s 300 ser ss b18.2.1	163	Contact_Supplier
Optimas	IL	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	5/16-18 x 1 3/8	5/16-18x1-3/8 hex cap screw 18-8 ss ansi b18.2.1 isir	16800	Contact_Supplier
Ababa	CA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	1/4-20 x 1 3/8	1/4-20 x 1 3/8 h/c s/s b18.2.1	50	Contact_Supplier
XL Screw	GA	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 1 3/8	hex c/s SAE j429 zp asme b18.2.1	1,200	Contact_Supplier
XL Screw	GA	Hex Head Cap Screw	Grade 5	Zinc/Clear	3/8-16 x 1 3/8	hex c/s SAE j429 zp asme b18.2.1	800	Contact_Supplier
XL Screw	GA	Hex Head Cap Screw	Grade 5	Zinc/Clear	1/2-13 x 1 3/8	hex c/s SAE j429 zp asme b18.2.1	400	Contact_Supplier
XL Screw	GA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	1/2-13 x 1 3/8	hex c/s SAE j429 zyd asme b18.2.1	400	Contact_Supplier
XL Screw	GA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	1/4-20 x 1 3/8	hex c/s SAE j429 zyd asme b18.2.1	2,000	Contact_Supplier
XL Screw	GA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	3/8-16 x 1 3/8	hex c/s SAE j429 zyd asme b18.2.1	800	Contact_Supplier
QFC	TX	Hex Head Cap Screw	Grade 8	Zinc/Clear	1/4-20 x 1 3/8	1/4-20x1 3/8 hex c/s gr8 zinc b18.2.1	89	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	7/16-14 x 1 3/8	7/16-14 x 1 3/8 hex cap screws gr 8 z yellow b18.2.1	4	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 5	Plain	1/2-20 x 1 3/8	1/2-20 x 1 3/8 hex cap screws gr 5 plain b18.2.1	20	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	5/8-18 x 1 3/8	5/8-18 x 1 3/8 hex cap screws gr 8 z yellow b18.2.1	29	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 5	Zinc/Clear	1/4-20 x 1 3/8	1/4-20 x 1 3/8 hex cap screws gr 5 zinc b18.2.1	3648	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 8	Zinc/Yellow	1/2-20 x 1 3/8	1/2-20 x 1 3/8 hex cap screws gr 8 z yellow b18.2.1	559	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	Grade 8	Zinc/Green	3/4-16 x 1 3/8	3/4-16 x 1 3/8 hex cap screws gr 8 olive drab b18.2.1	185	Contact_Supplier
B & K FAST	PA	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	1/4-20 x 1 3/8	1/4-20 x 1 3/8 hex cap screws 18-8 stainless b18.2.1	116	Contact_Supplier
General F	MI	Hex Head Cap Screw	Steel	Zinc/Yellow	3/8-16 x 1 3/8	3/8-16 x 1.375 hhcs 5 zn ylw b18.2.1	1545	Contact_Supplier
General F	MI	Hex Head Cap Screw	Grade 8	Plain	7/16-14 x 1 3/8	7/16-14x1.375 hhcs gr8 alloy b18.2.1	14,350	Contact_Supplier
General F	MI	Hex Head Cap Screw	Grade 8	Plain	3/8-16 x 1 3/8	3/8-16x1.375 hhcs gr8 zidi bake b18.2.1	15	Contact_Supplier
General F	MI	Hex Head Cap Screw	Grade 8	Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)	3/8-24 x 1 3/8	hf 3/8-24x1.375 hhcs grade 8 magni 565 b18.2.1	35053	Contact_Supplier
General F	MI	Hex Head Cap Screw	Grade 8	Plain	3/8-24 x 1 3/8	3/8-24 x 1.375 hhcs gr8 alloy b18.2.1	33223	Contact_Supplier
General F	MI	Hex Head Cap Screw	Steel	Zinc/Yellow	5/16-18 x 1 3/8	5/16-18 x 1.375 hhcs 5 zn ylw b18.2.1	1115	Contact_Supplier
BHAM	AL	Hex Head Cap Screw	Grade 5	Zinc/Clear	3/8-16 x 1 3/8	3/8-16x1 3/8 hex c/s dom grade 5 zn fully b18.2.1	5	Contact_Supplier
Pac Fas	TX	Hex Head Cap Screw	Grade 5	Zinc/Clear	1/2-13 x 1 3/8	1/2-13 x 1-3/8 hex cap screw grade 5 (sae j429) coarse zinc b18.2.1	5	Contact_Supplier
Pac Fas	TX	Hex Head Cap Screw	Grade 5	Zinc/Clear	1/4-20 x 1 3/8	1/4-20 x 1-3/8 hex cap screw grade 5 (sae j429) coarse zinc b18.2.1	51	Contact_Supplier
Pac Fas	TX	Hex Head Cap Screw	Grade 5	Zinc/Clear	3/8-16 x 1 3/8	3/8-16 x 1-3/8 hex cap screw grade 5 (sae j429) coarse zinc b18.2.1	inquire	Contact_Supplier
Pac Fas	TX	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 1 3/8	5/16-18 x 1-3/8 hex cap screw grade 5 (sae j429) coarse zinc b18.2.1	900	Contact_Supplier
Pac Fas	TX	Hex Head Cap Screw	Grade 5	Zinc/Clear	7/16-14 x 1 3/8	7/16-14 x 1-3/8 hex cap screw grade 5 (sae j429) coarse zinc b18.2.1	inquire	Contact_Supplier
Pac Fas	TX	Hex Head Cap Screw	Grade 8	Zinc/Yellow	1/2-13 x 1 3/8	1/2-13 x 1-3/8 hex cap screw grade 8 (sae j429) coarse zinc yellow b18.2.1	inquire	Contact_Supplier
Pac Fas	TX	Hex Head Cap Screw	Grade 8	Zinc/Yellow	1/4-20 x 1 3/8	1/4-20 x 1-3/8 hex cap screw grade 8 (sae j429) coarse zinc yellow b18.2.1	88	Contact_Supplier
Pac Fas	TX	Hex Head Cap Screw	Grade 8	Zinc/Yellow	7/16-14 x 1 3/8	7/16-14 x 1-3/8 hex cap screw grade 8 (sae j429) coarse zinc yellow b18.2.1	8	Contact_Supplier
THRDFAST	TN	Hex Head Cap Screw	316, 317, A4 Stainless	Plain	1/2-13 x 1 3/8	t-316 ss hex c/s b18.2.1	120	Contact_Supplier
THRDFAST	TN	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	3/8-16 x 1 3/8	18-8 ss hex c/s b18.2.1	25	Contact_Supplier
KBS	TN	Hex Head Cap Screw	Grade 8	Plain	7/16-14 x 1 3/8	7/16-14 x 1 3/8 hex cap/s alloy gr-8 b18.2.1	882	Contact_Supplier
KBS	TN	Hex Head Cap Screw	Grade 5	Plain	1/2-13 x 1 3/8	1/2-13 x 1 3/8 hex c/s w/patch gr 5 b18.2.1	5,115	Contact_Supplier
WSB	KY	Hex Head Cap Screw	Grade 5	Zinc/Clear	5/16-18 x 1 3/8	screw hcs gr5 (zt) 5/16-18x1 3/8 b18.2.1	14,834	Contact_Supplier
WSB	KY	Hex Head Cap Screw	Grade 8	Zinc/Yellow	1/2-13 x 1 3/8	screw hcs gr8 (zy) 1/2-13x1 3/8 b18.2.1	2,800	Contact_Supplier
MMF	MI	Hex Head Cap Screw	300 Stainless (A1,A2, 18-8,304,310 etc.)	Plain	1/2-13 x 1 3/8	1/2-13x1-3/8 18-8 hhcs ms35307-412 mod with patch lock per mil-dtl-18240 usa ms35307-412l b18.2.1	92	Contact_Supplier
MMF	MI	Hex Head Cap Screw	Grade 8	Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)	1/4-20 x 1 3/8	1/4-20 x 1-3/8 gr 8 hhcs magni 565 b18.2.1	50	Contact_Supplier
MMF	MI	Hex Head Cap Screw	Grade 8	Plain	1/4-20 x 1 3/8	1/4-20 x 1-3/8 hhcs gr 8 plain b18.2.1	628	Contact_Supplier
MMF	MI	Hex Head Cap Screw	Grade 8	Plain	1/4-20 x 1 3/8	1/4-20 x 1-3/8 hhcs gr 8 plain b18.2.1	628	Contact_Supplier
MMF	MI	Hex Head Cap Screw	Grade 8	Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)	1/4-20 x 1 3/8	1/4-20 x 1-3/8 gr 8 hhcs magni 565 b18.2.1	50	Contact_Supplier
MMF	MI	Hex Head Cap Screw	Grade 8	Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)	1/4-20 x 1 3/8	1/4-20 x 1-3/8 gr 8 hhcs magni 565 b18.2.1	50	Contact_Supplier
MMF	MI	Hex Head Cap Screw	Grade 8	Plain	1/4-20 x 1 3/8	1/4-20 x 1-3/8 hhcs gr 8 plain b18.2.1	628	Contact_Supplier
MMF	MI	Hex Head Cap Screw	Grade 8	Plain	1/4-20 x 1 3/8	1/4-20 x 1-3/8 hhcs gr 8 plain b18.2.1	628	Contact_Supplier
MMF	MI	Hex Head Cap Screw	Grade 8	Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)	1/4-20 x 1 3/8	1/4-20 x 1-3/8 gr 8 hhcs magni 565 b18.2.1	50	Contact_Supplier

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