Hex Head Cap Screws are designed for easy assembly into a tapped hole. Hex Cap Screws meet SAE specifications with a specially designed washer face under the head and a chamfered point. Grade 8 has a greater tensile strength than Grade 5. Designed for use in high-strength and high-stress applications. Plain finish, or bare metal, will have a coating of light oil to resist corrosion. Minimum Tensile Strength: 150,000 psi for 1/4 - 1-1/2".