Socket Head Cap Screw Full Thread Black Steel 1-3/8-6 * 3-1/2" Grade 8 [Cup Point] [Allen Drive] Quantity:Unity nickel alloy set screws have

nickel alloy set screws have excellent resistance to salt water and some acids

Class 8 nuts are comparable in strength to Class 8

These nuts are classified as ASME B18

The screws have a thread of 1-8 and a length of 4-1/2

The screws have a thread of 1-1/2-6 and a length of 14

Socket Head Cap Screw Full Thread Black Steel 1-3/8-6 * 3-1/2" Grade 8 [Cup Point] [Allen Drive] Quantity:Unity nickel alloy set screws haveWith 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 1 3 8 6. 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