Carriage Bolt: Square, Steel, Grade 2, Black Oxide, 5/16"-18 Thread Size, 4 1/2 in lg, Inch, 50 PK
Item: 31HZ31, MFR: U08300.031.0450, Brand: GRAINGER APPROVED
| System of Measurement | Inch |
| Drive Type | No Drive |
| Thread Size | 5/16"-18 |
| Material | Steel |
| Material Grade/Class | Grade 2 |
| Finish | Black Oxide |
| Fastener Length | 4-1/2 in |
| Thread Style | Fully Threaded |
| Thread Type | Coarse |
| Neck Type | Square |
| Dimensional Standards | ASME B18.5 |