This listing is for Twenty (20) new #4-40 x 1/4" Flat Head Socket Cap Screws with Thermal Black Oxide coating.
Diameter : #4
Thread Pitch : 40 TPI - UNC / Coarse Thread
Length : 1/4" - (see diagram to right)
Drive : 1/16" Hex Key - Available here
Type : Flat Socket Cap Screw
Matching Nut : #4-40 Available here
System of Measurement : Inch
Material : Alloy Steel with Thermal Black Oxide
Specifications : ASTM F835
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