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Mr. Gasket Header Bolts - 3/8-16 x 3/4 Inch Hex Head - Black Oxide - 100 Pieces; 3/8-16 X 3/4 Inch, 100 Pieces, Grade-5, Hex Head, 7/16 Inch Wrench Size.

Mr. Gasket Header Bolts - 3/8-16 x 3/4 Inch Hex Head - Set of 12; Fits AMC 290-401, Chevrolet Small Block 262-400, Chrysler 383-440 except Hemi, Pontiac 326-455, Oldsmobile 330-455

Mr. Gasket Header Bolt Set - Allen Head 3/8-16 x 3/4 Inch; Fits AMC 290-401, Chevrolet Small Block 262-400, Chrysler 383-440 except Hemi, Pontiac 326-455, Oldsmobile 330-455

Mr. Gasket Header Bolts -3/8-16 x 1 Inch Hex Head - Black Oxide; Fits AMC 290-401, Chevrolet Small Block 262-400, Chrysler 383-440 except Hemi, Pontiac 326-455, Oldsmobile 330-455

Mr. Gasket Header Bolts - 5/16-18 x 3/4 Inch Hex Head - Black Oxide; Fits Small Block Chrysler 318/340/360 & Hooker Headers with adapter Plates

Mr. Gasket Header Bolts - 3/8-16 x 3/4 Inch Hex Head - Set of 16; Fits 1965-1990 Chevrolet 396-454 Big Block and 1962-2001 Ford 221-351W

Mr. Gasket Header Bolts - 3/8-16 x 3/4 Inch Mini Hex Head - Black Oxide; Fits AMC 290-401, Chevrolet Small Block 262-400, Chrysler 383-440 except Hemi, Pontiac 326-455, Oldsmobile 330-455

Mr. Gasket Headlock Locking Header Bolts - 3/8-16 x 3/4 Inch - Set of 12; Fits AMC 290-401. Chevrolet Small Block 262-400, Chrysler Big Block 383-440 Wedge Engines, Pontiac 326-455, and Oldsmobile 330-455

Mr. Gasket Headlock Locking Header Bolts - 3/8-16 x 3/4 Inch - Set of 16; Fits Chevrolet Big Block 396-454, Ford 289-351W, 426 Hemi, Ford 429/460

Mr. Gasket Headlock Locking Header Bolts - M8-1.25 x 25mm - Set of 12; Fits GM LS or LT Series Engines

Mr. Gasket Headlock Locking Header Bolts - M8-1.25 x 25mm - Set of 17; Fits 1991-up Ford 4.6L/5.4L and 2003-up Chrysler 5.7L/6.1L/6.4L Gen III Hemi

Mr. Gasket Header Bolts - 3/8-16 x 1 Inch Hex Head - Black Oxide - 100 Pieces; Bulk Header Bolts - 100 Pieces - Bolt Size 3/8-16 X 1 Inch