L-9 Hex Head Cap Screws

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When a Grade 8 bolt is not enough, L-9 hex head cap screws bring serious clamp load for high-stress, severe-service joints. Built from AISI 8640H alloy steel with 180,000-200,000 psi tensile strength for heavy equipment, presses, structural repairs. Choose SAE or USS threads to match your tapped holes. Meets ASTM F606, RoHS.

L9 Hex Head Cap Screws

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L9 Hex Head Cap Screws

L9 USS hex head cap screws made from high-grade AISI 8640H alloy steel with zinc yellow trivalent finish. L9 grade offers 180,000 to 200,000 psi tensile strength and improved torque-tension control, which provides higher clamp loads and superior holding for severe-service, high-stress applications. Made in the U.S.A.

Thread Type: Coarse

Item #	Diameter	Thread Size	Package Qty
980404	1/4"	1/4"-20	100	Log in to view price
980504	5/16"	5/16"-18	100	Log in to view price
980604	3/8"	3/8"-16	100	Log in to view price
980706	7/16"	7/16"-14	50	Log in to view price
980806	1/2"	1/2"-13	25	Log in to view price
980908	9/16"	9/16"-12	25	Log in to view price
981008	5/8"	5/8"-11	25	Log in to view price
981212	3/4"	3/4"-10	20	Log in to view price
981416	7/8"	7/8"-9	10	Log in to view price
981616	1"	1"-8	10	Log in to view price

Thread Type: Fine

Item #	Diameter	Thread Size	Package Qty
990404	1/4"	1/4"-28	100	Log in to view price
990504	5/16"	5/16"-24	100	Log in to view price
990606	3/8"	3/8"-24	100	Log in to view price
990708	7/16"	7/16"-20	50	Log in to view price
990808	1/2"	1/2"-20	25	Log in to view price
990912	9/16"	9/16"-18	25	Log in to view price
991008	5/8"	5/8"-18	25	Log in to view price
991212	3/4"	3/4"-16	20	Log in to view price