1/4-20 x 1 Hex Head Cap Screws, Alloy Steel Grade 9, Zinc Yellow Plating (Quantity: 100 pcs) - Coarse Thread UNC, Fully Threaded, Length: 1 Inch, Thread Size: 1/4 Inch$$Hardware

Rockwell C38-C42 Zinc Yellow Plating Head height is approximately 25% higher than a standard cap screw Manufactured from 8647 /8640 /8740 Medium Carbon Alloy Steel Tensile Strength: 180,000 psi. min