Socket Head Cap Screw Black Steel 1-1/4-7 * 4-1/4" Grade 8 [Cup Point] [Allen Drive] Quantity:Unity Zinc-plated steel threaded rods are

Zinc-plated steel threaded rods are corrosion resistant in wet environments

These screws are corrosion resistant in wet environments

The nuts have a thread of 1-8 and a lenght of 2-1/8

These bolts are classified as ASME B19

Socket Head Cap Screw Black Steel 1-1/4-7 * 4-1/4" Grade 8 [Cup Point] [Allen Drive] Quantity:Unity Zinc-plated steel threaded rods areWith 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 1 4 7 and a length of 4 1 4. 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