Tremco/ES Products Twin Loc-Nail:

Tremco/ES Products Twin Loc-Nail

Pre-Assembled Corrosion Resistant Fastener and Plate Assembly for Cement Wood Fiber and Poured Gypsum Roof Decks

The Tremco/ES Products Twin Loc-Nail is designed to secure asphalt-coated base sheets and insulation boards to new and existing cement wood fiber decking (Tectum) and poured gypsum decking.  This product may also be used as a roof fastener for lightweight insulating concrete substrates.


The Tremco/ES Products Twin Loc-Nail is a single piece, pre-assembled fastening unit consisting of a tube, disc and locking staple. 

The tube is formed from galvanized coated steel and is available in four different lengths. The discs are formed from Galvalume coated steel and are securely clamped to the tube.  Lastly, the locking staple is formed from high tensile steel wire that is coated to prevent corrosion.  The locking staple is preloaded into the tube and is set when the Twin Loc-Nail is driven.

Roofing & Weatherproofing Peace of Mind

We deliver peace of mind to building owners and facility managers by managing roofing and building life cycles for customers in all industries, including education, healthcare, government, manufacturing and more.

  • Tremco Roofing offers the industry's most comprehensive roofing and weatherproofing solutions for restoration, repair, maintenance, replacement and new construction.
  • WTI (Weatherproofing Technologies, Inc., a subsidiary of Tremco Incorporated), provides roofing services, construction management and general contracting.
  • Our Canam Building Envelope Specialists affiliate provides building envelope solutions to eliminate air leaks, improve energy efficiency and reduce costs.


US: 1.800.852.6013

Canada: 1.800.668.9879