2 Bolts - Extreme-Strength Steel Cap Screw- Hex Head Cap Screw Zinc Yellow Plated, - Grade 8, 1/2"-13 Thread, 2-1/2" Long(SUGGESTED FOR THE RG15 BARS)
NOTE:The standard for high-strength cap screws, these are made from alloy steel and have a minimum tensile strength of 150,000 psi. Length is measured from under the head.Inch screws are marked on the head with six radial lines to indicate Grade 8. Screws have a minimum Rockwell hardness of C33 and a Class 2A thread fit. They also meet ASME B18.2.1 and SAE J429