APPLICATION
This bolt spec is the most commonly used for any general application for bolting. This bolt spec is for bolts, anchor bolts and studs that have a minimum tensile strength of 60 KSI and these bolts are used for general applications.
Grades
| A | Headed bolts, threaded rods and bent bolts intended for general applications. |
|---|---|
| B | Heavy hex bolts and studs intended for flanged joints in piping systems with cast iron flanges. |
| C | Nonheaded anchor bolts, either bent or straight, intended for structural anchorage purposes. The end of a grade C anchor bolt intended to project from the concrete will be painted green for identification purposes. Permanent marking is a supplemental requirement. |
Chemical Properties
| Element | Grade A | Grade B |
|---|---|---|
| Carbon, max | 0.29% | 0.29% |
| Manganese, max | 1.20% | 1.20% |
| Phosphorus, max | 0.04% | 0.04% |
| Sulfur, max | 0.15% | 0.05% |
Nuts
A563 Grade A hex (NOT HEAVY HEX)
Washers
All A307A Bolts are to be used with standard F844 Washers (SAE + USS)