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.
Ford 289-302-351W/C, AMC V8: Includes 18 of 1/4''-20 x 1/2'' and 6 of 5/16''-18 x 3/4''
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