Description
Thread Size: 1/2"-13; Thread Pitch: 13 TPI; Thread Type: Coarse Thread are the industry standard Package include: 6 PCS; Hex Drive Size: 3/4" Material: 304 stainless steel 18-8 with special black appearance, greater strength and better corrosion resistance performance than regular stainless steel or zinc plated fasteners. No scratches, No Burrs. Excellent black appearance Thread Length: 2-1/2 inch; Head Height: 0.32 inch Hex bolts generally require flat & lock washers to evenly distribute the pressure from the head and the nut. You could find the matched hex nut and flat & lock washers in our store.