Mr. Gasket 2230G - HEADLOCK Locking Header Bolts

Mr. Gasket 2230G - HEADLOCK Locking Header Bolts

Header Bolt - Locking - 3/8-16 in Thread - 0.75 in Long - Hex Head - Stainless - Various Applications - 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

Headlock™ Bolts eliminate the need for lock washers, Period. That's because each Headlock™ Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.

• 12 per Package
• Includes a ball-head/hex-key socket-installation tool that makes it easy to get them started
• 410 stainless steel
• Minimum 180,000 PSI tensile strength
• 24 equally spaced clockwise teeth