Socket Head Cap Screw Full Thread Black Steel 9/16-12 * 3-1/2" Grade 8 [Cup Point] [Allen Drive] thread_size_1-2-13 They'renot reusable

They'renot reusable

The Grade 5 increases its strength against the pressure and has a tensile strength and hardness of 120

This hexagonal bolt has a length of 4-1/2 with a threading of 7/8-9 [Partially Threaded]

This hexagonal bolt has a length of 8" with a threading of 1/2-13 [Partially Threaded]

This hexagonal nut fit a threading of 1-1/2-6

Socket Head Cap Screw Full Thread Black Steel 9/16-12 * 3-1/2" Grade 8 [Cup Point] [Allen Drive] thread_size_1-2-13 They'renot reusableWith a tensile strength of 170,000 psi, these alloy steel screws are stronger than Grade 8 steel screws. Length is measured from under the head. The screw has a length of 3 1 2" and a thread of 9 16 12. Black oxide steel screws are mildly corrosion resistant in dry environments. Coarse threads are the industry standard: choose these screws if you dont know the pitch or threads per inch. Screws that meet ASTM A574, ASTM A574M, and ISO 898 1 comply with