• Premium Grade Pro Series Torque Converter bolt kit
• 200,000 psi rating
• Designed for each specific application & provide the optimum grip
• Kit comes with hardened parallel-ground washers
• Black oxide finish 8740 chrome moly
• 12-Point head style
• Under Head Length: 1.250
• Thread Size: 7/16-20
• Set of 3
• Application: GM Powerglide, TH350 & TH400 w/Race Converter - 1/2” thick tabs