Product images may differ from actual product appearance.
Smaller Than Standard Hex Head is Ideal for Tight Spaces. Integral hex flange head design with under head serrations distribute uniform clamping pressures. Zinc plated grade-5.
BB-Chevy, Pontiac V8: Includes 2 of 1/4''-20 x 1/2'' and 20 of 5/16''-18 x 3/4''