Socket Head Cap Screw Black Steel 1-1/4-7 * 6-1/2" Grade 8 [Cup Point] [Allen Drive] Quantity:Unity They have a standard shoulder

They have a standard shoulder with an undersized tolerance to fit most machinery and equipment

This hexagonal bolt has a length of 4-1/2" with a threading of 1-1/8-12 [Partially Threaded]

This hexagonal bolt has a length of 12" with a threading of 7/8-9 [Partially Threaded]

The screws have a thread of 1-1/2-6 and a length of 18

The screw has a length of 7 and a thread of 5/8-18

Socket Head Cap Screw Black Steel 1-1/4-7 * 6-1/2" Grade 8 [Cup Point] [Allen Drive] Quantity:Unity They have a standard shoulderWith 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 6 1 2. 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