Mellewell 5/16-18 x 3/4" Flanged Hex Head Bolts Flange Hexagon Screws, Stainless Steel A2 Black Finish, DIN 6921, 15 PCS

Screw Type: 5/16-18 x 3/4" Flanged Bolts - DIN 6921. | Specification: Pitch 18 TPI. Screw Length : 3/4" (Excluding Head). Diameter of head: 12.5mm. Diameter of hex washer: 17mm. Height of head: 8mm. | Material : High quality stainless steel A2-70, corrosion resistant. | Electrophoresis black finish provides great protection from corrosions and tarnishing. | Package Included : 15 PCS.