Square Head Screw Fine & Full Thread Black-Oxide Alloy Steel 1-14 * 4-1/2" Grade 8 [Cup Point] [External Square Drive] Quantity:Unity It is made of black

It is made of black zinc plated and thus provide medium resistance to corrosion in dry environments and low resistance in wet environments

This hexagonal bolt has a length of 4-1/4" with a threading of 7/8-9 [Partially Threaded]

The screw has a length of 1-1/4" and a thread of 1-1/4-7

The rod measures 72" and has a 5/8-11 thread

These locknuts have good chemical resistance and may be mildly magnetic

Square Head Screw Fine & Full Thread Black-Oxide Alloy Steel 1-14 * 4-1/2" Grade 8 [Cup Point] [External Square Drive] Quantity:Unity It is made of blackUse 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 4 1 2" and a thread of 1 14.