Square Head Screw Full Thread Black-Oxide Alloy Steel 7/8-9 * 2-1/2" Grade 8 [Cup Point] [External Square Drive] nylon_insert The shackles have a diameter

The shackles have a diameter of 1-1/4

This hexagonal bolt has a length of 15" with a threading of 3/4-10 [Partially Threaded]

The screw has a length of 4-1/2" and a thread of 1-3/4-5

The screw has a length of 8" and a thread of 1/2-13

This hexagonal bolt has a length of 6" with a threading of 5/8-11 [Partially Threaded]

Square Head Screw Full Thread Black-Oxide Alloy Steel 7/8-9 * 2-1/2" Grade 8 [Cup Point] [External Square Drive] nylon_insert The shackles have a diameterUse 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 2 1 2" and a thread of 7 8 9.