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FastenMaster FMHLGM412-250 HeadLOK Heavy-Duty Flathead Fastener, 4-1/2 Inches, 250-Count
Nationally code compliant stronger design shear values than 3/8 inch lag screws
No predrilling--zips right in
Patented Spider Drive virtually eliminates cam-out
Guaranteed corrosion resistance for the life of the project; ACQ approved
Free Spider Driver bit in every package