Highlights:
- Applicable Materials: Wood
- Drive Size: T-40
- Drive Type: Star
- Finish: PROTECH Ultra 4 Coated
- Head Type: Flat
- Includes: T-40 Bit
- Length: 3-1/2 inch
- Package Quantity: 250
- Point Type: Sharp
- Thread Size: 5/16 inch
- 5/16 in (7.9 mm) structural screws for fastening ledger boards, multi-ply sawn and structural composite lumber beams, and other interior and exterior construction projects
- Replaces 1/2 in lag screws in general construction projects
- Sharp point starts fast with no predrilling
- Slashes reduce splitting
- Large flat head maximizes pull-through holding power and finishes flush with work area
- T-40 star drive reduces cam outs and excessive wear on bit
- Coated with our proprietary PROTECH Ultra 4 coating system, which features four layers that combine to provide the ultimate corrosion protection
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