Nut Color Silver Connection Type Bolt Connection Material Steel Features Complete Selection of Standard and Heavy Duty Battery Related Hardware Red and Black Fasteners are Quickcote(TM) Treated for Permanent Polarity Indication and Corrosion Resistance Standards Mil Specifications SAE Attachment Type Side Compatible Product Type Battery Length 3/8 in Material Steel Overall Height 3/8 in Stud Size 5/16 In.-18 Width 1/2 in Package Quantity 25