Grade 5 Hex Cap Screws have 3 radial lines on the head, and can withstand a minumum of 120,000 PSI tensile strength. Hex Cap Screws feature a washer face...
Grade 8 Hex Cap Screws have 6 radial lines on the head, and can withstand a minumum of 150,000 PSI tensile strength. Hex Cap Screws feature a washer face...