Square Head Screw Full Thread Black-Oxide Alloy Steel 1-8 * 5" Grade 8 [Cup Point] [External Square Drive] Quantity:Unity The screw has a length

The screw has a length of 3" and a thread of 1-3/8-6

The screw has a length of 6-1/2" and a thread of 3/4-10

The screw has a length of 4-1/2" and a thread of 1-3/4-5

the better the resistance

they resist loosening from counterclockwise motion

Square Head Screw Full Thread Black-Oxide Alloy Steel 1-8 * 5" Grade 8 [Cup Point] [External Square Drive] Quantity:Unity The screw has a lengthUse 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" and a thread of 1 8.