Description
This listing is for Ten (10) new - #4-40 x 1/8" Coarse Thread size - Imperial (Inch) - Set / Grub Screws with a Socket Head Cap in Black Alloy Steel. These heavy duty screws (see below for details) . - Uses a 0.050" Hex Key - Available here Black Alloy Steel - Made from heat treated alloy steel. Best for applications where extreme strength and hardness are required. Alloy Steel, Quenched and Tempered. Complies with ASME/ANSI B18.3 and ASTM A574 guidelines