This listing is for Twenty (20) new #4-40 x 1/8" Socket Set / Grub Screws with a Cup Point with Black Oxide coating.

Diameter: #4

Thread Pitch: 40 TPI - UNC / Coarse Thread

Length: 1/8"

Drive: .050" Hex Key - Available here

Type: Set / Grub Screw

Matching Nut: #4-40 Available here

System of Measurement: Inch

Material: Alloy Steel w/ Thermal Black Oxide Coating

Specifications: ASME B18.3 / ASTM F912