Socket Head Cap Screw Black Steel 1/2-13 * 15″ Grade 8 [Cup Point] [Allen Drive] Online Sale

With 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 screws have a thread of 1/2-13 and a length of 15.

Black-oxide steel screws are mildly corrosion resistant in dry environments.Coarse threads are the industry standard: choose these screws if you don’t know the pitch or threads per inch.

Screws that meet ASTM A574, ASTM A574M, and ISO 898-1 comply with specifications and testing requirements for material quality.