GRK Fasteners 5/16 in. x 6 in. Star Drive Low Profile Washer Head …
Rating: 1,002 reviews from 1 sources
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Selected Review of 1002 Reviews
I used the GRK 5/16x4 to attach joists to 4x4 posts on a deck and wheelchair ramp. The bite and holding power seem superior to any lag bolts … Read full review
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