Square Head Screw Full Thread Black-Oxide Alloy Steel 5/8-11 * 8" Grade 8 [Cup Point] [External Square Drive] thread_size_9-16-18 Made from alloy steel

Made from alloy steel

They thread on from the bottom of the nut

This hexagonal bolt has a length of 12-1/2" with a threading of 3/4-10 [Partially Threaded]

The screws have a thread of 3/4-10 and a length of 18

Square Head Screw Full Thread Black-Oxide Alloy Steel 5/8-11 * 8" Grade 8 [Cup Point] [External Square Drive] thread_size_9-16-18 Made from alloy steelUse these set screws for light duty holding. A square head allows them to be turned by hand, or fastened with a wrench when you need more torque. The cup point has a thin edge that digs into the contact surface for a secure hold. Length is measured from under the head. The screw has a length of 8" and a thread of 5 8 11.