5/16-18X4 Hex Head Flange Non Serrated Frame Bolt IFI-111 2002 Grade 8 Black Phosphate

PRODUCT SPECIFICATIONS (Part # 0000-280550)
Fastener Type:	Flange Bolts
Size Description:	5/16-18X4
Diameter/Nominal Size:	5/16
Length:	4
Thread Pitch:	18
Thread Direction:	Right
System of Measurement:	Inch
Material:	Steel
Finish:	Plain Finish (No Plating)
Drive Type:	Hex (Allen)
Average Piece Weight:	0.0980000 lbs.

Hexagonal heads and machine threads used with a nut or in a tapped hole; also known as or machine bolts. Hex bolts are similar to hex cap screws.

What is the difference between a hex cap screw and a hex bolt? A hex cap screw has tighter tolerances on the body dimensions and features a chamfered end and a washer face under the bolt head. A hex cap screw is often called a finished hex bolt. Hex bolts have a flat end and lack the washer face under the head. Hex bolts may have an undersize body in longer lengths.