This is replacement hardware for our .625″ and .750″ Gas Block They will work with a variety of other gas blocks that use 10-32 screws. It includes: (3) 10-32 black oxide alloy steel knurled cup-point set screws. Rockwell hardness of C-45. Allen key drive size: 3/32″ (2) 420 Stainless Steel coil pin. 550 pound breaking strength, Rockwell hardness of C46. Chamfered at both ends. Made in the USA
