PRODUCT SPECIFICATIONS Part #: 0000-194323 Fastener Type: Hex Cap Screw (Bolt) Size Description: 1/4-20 x 3 Diameter/Nominal Size: 1/4 Length: 3 Thread Pitch: 20 Thread Pitch Type: Coarse Thread Direction: Right System of Measurement: Inch Material: Brass Finish: Plain Finish (No Plating) Head Type: Hex Drive Type: External Hex Average Piece Weight: 0.0476000 lbs. Hex Cap Screws are similar to hex bolts but are manufactured with tighter tolerances than hex bolts for socket or wrench tightening hex cap screws are available in both fully threaded and partial threaded varieties and in many different materials.