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Lag Bolts vs. Structural Screws: Which One Is Best?
There are only two downsides to structural screws: cost and availability. GRK brand screws are the most expensive and are only available from professional lumber yards. Spax and FastenMaster ...
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GRK AugerBolt Through Bolt Fastening System
The new GRK Fasteners’ new AugerBolt Through Bolt Fastening System, you can now drill  the installation hole and install code ...