Description MRG3420G by MR. GASKET Header Bolt, 3/8-16 in Thread, 0.750 in Long, Hex / Socket Head, Steel, Black Oxide, AMC V8 / GM V8 / Mopar B / RB-Series, Set of 12 This bolt head of these Mr Gasket 3420G header bolts incorporates a combination hex and socket design for quick, easy installation and removal. The compact bolt head and flange is ideal for use where space is minimal, typical on header flange 3/8″-16 x 3/4″, Combo 7/16″ Hex And Socket Head (12 Pcs.)
