Square Head Screw Full Thread Black-Oxide Alloy Steel 5/8-11 * 9" Grade 8 [Cup Point] [External Square Drive] length_3 They're often used to anchor

They're often used to anchor machinery

This hexagonal bolt has a length of 20" with a threading of 7/8-9 [Partially Threaded]

This hexagonal bolt has a length of 5-3/4" with a threading of 3/4-16 [Partially Threaded]

The nylon insert grips the bolt to resist loosening without damaging threads

This hexagonal bolt has a length of 12 with a threading of 1-1/2-6 [Partially Threaded]

Square Head Screw Full Thread Black-Oxide Alloy Steel 5/8-11 * 9" Grade 8 [Cup Point] [External Square Drive] length_3 They're often used to anchorUse 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 9" and a thread of 5 8 11.