Item:ANSI/ASTM/ASME Square Bolts A307 (WITHOUT WASHER FACE)
Specification: Square Bolts A307 UNC Hot Dip Galvanized(WITHOUT WASHER FACE)
Material: Low carbon steel
Grade: 307A
Finish:Hot Dip Galvanized
Length of thread: Half thread or Full thread
Head marking: NB or YHC or On-demand customization
Standard size table
| SIZE | 1/2 | 5/8 | 3/4 | 7/8 | 1 | 1-1/8 | 1-1/4 | 1-3/8 | 1-1/2 |
| F | 3/4 | 15/16 | 1-1/8 | 1-5/16 | 1-1/2 | 1-11/16 | 1-7/8 | 2-1/16 | 2-1/4 |
| H | 21/64 | 27/64 | 1/2 | 19/32 | 21/32 | 3/4 | 27/32 | 29/32 | 1 |
| LT | 1.250 | 1.500 | 1.750 | 2.000 | 2.250 | 2.500 | 2.750 | 3.000 | 3.250 |
