Socket Head Cap Screw Black Steel 1-3/4-5 * 15" Grade 8 [Cup Point] [Allen Drive] thread_size_1-3-4-5 The nylon insert grips the

The nylon insert grips the bolt to resist loosening without damaging threads

also known as screw lead

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

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

Socket Head Cap Screw Black Steel 1-3/4-5 * 15" Grade 8 [Cup Point] [Allen Drive] thread_size_1-3-4-5 The nylon insert grips theWith 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 3 4 5 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 dont know the pitch or threads per inch. Screws that meet ASTM A574, ASTM A574M, and ISO 898 1 comply with