Square Head Screw Full Thread Black-Oxide Alloy Steel 1-8 * 2-1/2" Grade 8 [Cup Point] [External Square Drive] thread_size_m33_3-5 The screws have a thread

The screws have a thread of 1-3/8-6 and a length of 12

The screw has a length of 2" and a thread of 5/8-11

these are designed for through-hole applications

This hexagonal bolt has a length of 3-1/2" with a threading of 7/8-9 [Partially Threaded]

This hexagonal bolt has a length of 10-1/2 with a threading of 1-8 [Partially Threaded]

Square Head Screw Full Thread Black-Oxide Alloy Steel 1-8 * 2-1/2" Grade 8 [Cup Point] [External Square Drive] thread_size_m33_3-5 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 2 1 2" and a thread of 1 8.