Square Head Screw Full Thread Black-Oxide Alloy Steel 1-8 * 5-1/2" Grade 8 [Cup Point] [External Square Drive] grade-b7 The swivels have a thread

The swivels have a thread of 1/2 and a length of 5-1/2

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

This hexagonal bolt has a length of 8-1/2 with a threading of 7/8-9 [Partially Threaded]

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

Square Head Screw Full Thread Black-Oxide Alloy Steel 1-8 * 5-1/2" Grade 8 [Cup Point] [External Square Drive] grade-b7 The swivels have a threadUse 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 5 1 2" and a thread of 1 8.