- Frame bolts are a one-piece hex-washer head bolt with a flat bearing surface Frame bolts are commonly used on truck frames, giving them their name
- The flange eliminates the need for a washer and helps to compensate when holes are misaligned
- Also known as hex flange screws
| Type | Bolt |
| Style | Flange Frame Bolt |
| Size | 5/8"-11 |
| Length | 4-1/2" |
| Material | Carbon Steel |
| Grade/Class | 8 |
| Thread Type | UNC, USS |
| Length | 1-1/2" |
| Thread Style | Partailly Threaded |
| Specifications | IFI-111 |
| Tensile Strength | 150,000 PSI |
