Square Head Screw Fine & Full Thread Black-Oxide Alloy Steel 9/16-18 * 3" Grade 8 [Cup Point] [External Square Drive] thread_size_1-1-8-7 They are not compatible with

They are not compatible with coarse threads

The screws have a thread of 1-3/4-5 and a length of 6

Made from 18-8 stainless steel

The screw has a length of 5" and a thread of 1-14

The rod measures 36" and has a 3/4-10 thread

Square Head Screw Fine & Full Thread Black-Oxide Alloy Steel 9/16-18 * 3" Grade 8 [Cup Point] [External Square Drive] thread_size_1-1-8-7 They are not compatible withUse 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 3" and a thread of 9 16 18.