Drive with Speed, Quality, and Confidence

You are here : Products  >  Structural  >  RSS™ LTF


Designed For Log Home and Timber Framing

Interior / Exterior Use

  • Ledger Board
  • Retaining Walls
  • Log & Timber Framing

No Pre-Drilling Unless Material Requires
Lag Screw Alternative
Built In Washer Head
CEE Thread Enlarges Hole for Improved Drawing Strength

Patented washer type head, with a reinforced shouder underneath, 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. Case hardened steel Climatek™ coating, ACQ Approved. Lifetime limited warranty.

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. The 4 inches of deep rolled threads are very sharp, as they provide extreme pulling and withdrawal power. Patented W-Cut™ Slices a groove for next thread, reducing tension and pressure on fastener, providing ease of installation and the Zip-Tip™ is excellent for quick and easy starting.

Product Sheet

GRK Headquarters

GRK Fasteners USA ITW Renovations / Remodeling
155 Harlem Avenue, Building N3E
Glenview, IL 60025
Tel: 877-489-2726
Fax: 847-619-8403

GRK Fasteners Canada
ITW Construction Products
120 Travail Road
Markham, ON L3S 3J1
Tel: 800-263-0463
Fax: 800-895-5160


Quick Contact