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3/8” lag screw replacement
Flat head provides great finished look
The SpiderDrive™ System contains eight points of contact, maximizing bit fit and reducing stripping.
Sharp gimlet point for fast installation into wood and OSB
Aggressive thread for holding and withdrawal strength
Free SpiderDrive™ bit in every package
FastenMaster HeadLOK Structural Wood Screws
The HeadLOK flat head fastener is a heavy-duty structural wood screw requires no pre-drilling and offers higher design shear than 3/8" lag screws. HeadLOK zips right in and creates a great finished look.
Attaching Rigid Foam (SIPs)
And so much more!
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