5/16 -18 x 5 (PT) Coarse Thread A307 Grade A Square Head Machine Bolt Low Carbon Steel Plain Finish Pk 100

PRODUCT SPECIFICATIONS Part #: 0000-120371 Fastener Type: Square Head Machine Bolt Size Description: 5/16 -18 x 5 (PT) Diameter/Nominal Size: 5/16 Length: 5 Thread Pitch: 18 Thread Pitch Type: Coarse Thread Direction: Right Thread Coverage: Partial System of Measurement: Inch Grade: A (2) Material: Low Carbon Steel Finish: Plain Finish (No Plating) Head Type: Square Drive Type: External Square Standards Met: A307 Average Piece Weight: 0.1116700 lbs. Square head bolts or square head machine bolts offer a large bearing area for positive gripping; primarily used nowadays for aesthetic projects that create a rustic look or to match existing fasteners; comes in both fully threaded and partially threaded pitches. Square head bolts are sometimes selected over hex heads because the head will fit neatly in a channel.