Square Head Screw Full Thread Black-Oxide Alloy Steel 1/2-13 * 10" Grade 8 [Cup Point] [External Square Drive] thread_size_1-8 The screws have a thread

The screws have a thread of 1-8 and a length of 13

The screw has a length of 3-1/2" and a thread of 3/4-10

The screws have a thread of 1-8 and a length of 10

This hexagonal bolt has a length of 13 with a threading of 5/8-11 [Partially Threaded]

This hexagonal bolt has a length of 5" with a threading of 1-1/2-6 [Partially Threaded]

Square Head Screw Full Thread Black-Oxide Alloy Steel 1/2-13 * 10" Grade 8 [Cup Point] [External Square Drive] thread_size_1-8 The screws 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 10" and a thread of 1 2 13.