Leland Master One Steppers

The only screw available to use for fastening substrate panels that require thermal expansion capabilities

 
 
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Revolutionary design, self drills expansion hole, automatically centers screw in expansion hole, sealing washer allows installed panels to float in a ONE STEP operation.

  • Provides an expansion relief that allows for thermal expansion of paneling products after fastening.
  • Eliminates pre-drilling larger expansion pilot holes.
  • Automatically centers screw in self-drilled expansion hole and unique shank design guarantees centered washer and seal.
  • Provides ONE STEP fastening for FRP, Laminated (Wood/OSB) to FRP, and Fluted Poly Backed Laminated FRP Materials.
  • Perfect fastener for skylight and FRP Ridge Cap Panel fastening.
  • Allows ONE STEP fastening for all PVC/FRP liner products.
  • Completely reusable. Damaged panels can be replaced with original ONE STEPPERS.
  • Available in 1/4" Hex Washer head and Pancake head Quadrex Drive.
  • Sealing washers provide a cushioned expansion.
  • Fastens substrate thicknesses from .030 and thicker.
 
  • Diameter/Pitch: #12 (11)
  • Length: 1-5/8", 2-1/4"
  • Washer OD: 12mm / 1/2"
  • Material: Carbon Steel and 304 (HT3) Stainless Steel
  • Substrate Thickness: .030/.060, .060/.250, .250/.375, .375/.500
  • Head Types: 1/4" Hex washer head, pancake head Quadrex drive
  • Colors: Available painted to match panel