5/16-9x4" Hex Lag Screws A307 Grade A Zinc

Part Number: 31D400HLG2Z
Diameter/Pitch: 5/16"-9
Length Under Head: 4"
Grade: Grade A
Finish: Zinc Clear
Partial / Full Threads: Partial
Wrench Size: 1/2"
Recommended Predrill Hole Size: Softwood: 15/64" | Hardwood: 1/4"