8 x 3 Phillips Bugle Head Coarse Thread Drywall Screw Black Phosphate Particle Board 1/4-20-1 and they meet the ASTM

and they meet the ASTM A325 specification

while the oil lubrication ensures smooth installation

This 5/8-11 x 1 1/2 inch Grade 5 fully threaded carriage bolt is made of steel and zinc plated for corrosion resistance

finished appearance and allows for easy driving with a Phillips screwdriver

making them suitable for outdoor or wet environments

8 x 3 Phillips Bugle Head Coarse Thread Drywall Screw Black Phosphate Particle Board 1/4-20-1 and they meet the ASTMThese 8 x 3 Phillips bugle head coarse thread drywall screws are made of black phosphate particle board. They are designed for use in drywall applications and feature a sharp point for easy penetration. The bugle head provides a flush finish, while the coarse thread ensures a secure hold. These screws are also corrosion resistant for added durability.