SAE J429 is a spec that is intended for use in the automotive and similar industries. There are different types of grades for this spec that cover bolts, anchor bolts and studs – 1, 2, 3, 4, 5, 5.1, 5.2, 8, 8.1 and 8.2 in diameters up to 1-1/2”. The two most commonly used and manufactured are Grade 5 and 8, Grade 2 is very similar to A307.
Recommended Nuts and Washers:
Standard J995 Finished Hex Nuts and standard SAE or USS Washers