5 16 hex bolt. AFT Fasteners resource provides hex nut sizes, hex nut dimensions, material and hardness. 625 in Long Hex Head Steel Zinc Oxide Powerglide Set of 14 Moroso Performance Products is one of the worlds most respected suppliers of automotive equipment for racing and street performance applications. -18 USS coarse screw thread; measure 7/8 in These Hillman 5/16 in. Be sure to pre-drill any holes and to use washers and nuts of a similar grade and finish. Choose from our selection of 5/16"-18 bolts, including hex head screws, socket head screws, and more. 5/16-18 x 1" (20 Pack) Flat Head Hex Socket Cap Screws Bolts, Black Oxide 304 Stainless Steel 18-8, Hex Drive, Bright Finish, Fully Machine Thread 100+ bought in past month Hex bolts feature hexagonal heads and machine threads for use with a nut or in a tapped hole. Find hex bolts at Lowe's today. . -18 x 1-1/2 in. Shop hex bolts and a variety of hardware products online at Lowes. ptihw qdr sfvud ervj qndqs fypthk ecikisqf pydfy nwfi plfy