Square Head Screw Fine & Full Thread Black-Oxide Alloy Steel 3/4-16 * 2-1/2" Grade 8 [Cup Point] [External Square Drive] Quantity:Unity About half the strength of

About half the strength of medium-strength steel nuts

The screw has a length of 7/8" and a thread of 5/16-18

The screw has a length of 3-1/4" and a thread of 7/8-9

Zinc-plated and zinc yellow-chromate plated steel anchors are corrosion resistant in wet environments

These bolts are classified as ASME B19

Square Head Screw Fine & Full Thread Black-Oxide Alloy Steel 3/4-16 * 2-1/2" Grade 8 [Cup Point] [External Square Drive] Quantity:Unity About half the strength ofUse 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 3 4 16.