Product details:

Part #: 0000-116668. Buy as few as 900 pcs. Discounts on larger quantities. PRODUCT SPECIFICATIONS Part #: 0000-116668 Fastener Type: Hex Bolt Size Description: 5/16"-18 x 2 1/4" (PT) Diameter/Nominal Size: 5/16" Length: 2 1/4" Wrench Size/Across Flats: 1/2" (0.489-0.500") Width Across Corners: 0.557-0.577" Head Height: 13/64" (0.195-0.211") 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: Hex Drive Type: External Hex Standards Met: A307 Average Piece Weight: 0.0552500 lbs. Hexagonal heads and machine threads 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.