Details

Star drive #30 applies approximately 650 lbf torque energy

Patented washer type head
Produces extreme pressure pulling the log down, eliminating the need to add a washer as required for common lag screws. Head can be countersunk 1"-3" without pre-drilling a countersink hole.

Reinforced shoulder

Case hardened steel
Climatek™ coating, ACQ Approved. Lifetime limited warranty.

"CEE" thread
Exclusive "CEE" thread slightly enlarges hole for screw shank and allows log to settle without restriction. Eliminates pre-drilling as required for the common lag screw. Complete and effective installation in one operation

4" thread
Very sharp deep rolled threads, provide extreme pulling and withdrawal power.

Patented W-Cut™
Slices groove for next thread, reducing tension and pressure on fastener, providing ease of installation

ZipTip™
For quick and easy starting.

Additional Information

Manufacturer: GRK Fasteners

For More Information on the Timber Frame Fastener, [Click Here] to Link to Manufacturer Web Site