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SCREWS
Master Grippers®
Master Drillers®
Master Grippers MDP®
Master Drillers® Plymetal
Master One Steppers®
Master Nylon Headed Fasteners®
Master Deckers®
Capscrews
Tapping/Wood Screws
Machine Screws
Master Tappers®
Fastener Selection Guide (PDF)
Stainless Steel Guidelines (PDF)
Image of Screw Title Graphic

MASTER ONE STEPPERS®

Thermal Expansion Fasteners

U.S. Patent #5987837,
Cdn. Patent #2221679
Panel to wood frame substrate
  • Revolutionary design, self drills expansion hole, automatically centers screw in expansion hole, allows installed panels to float, preventing cracking caused by expansion and contraction
  • All Master One Steppers are 12-11 diameter with sharp piercing points
  • Available with either Hex Washer Heads (1/4” AF) or Low Profile Pancake Heads
  • (7/16” O.D.) Quadrex drive, 1-1/4”, 1-1/2”, 1-3/4”, 2”, 2-1/4”, 2-1/2”
  • One Steppers are assembled with Master Seal® 14 mm O.D. aluminum backed cushioning washers
  • Available in case Hardened Steel, JS1000 plated or DT2000 Longlife coated
  • Carbon steel fasteners are salt spray tested per ASTM B117
  • Available in 304 HT High Tensile & 410 Case Hardened Stainless Steel
Applications:
  • F.R.P. or PVC panels to wood
  • Fluted or Cored panels
  • Corrugated Polycarbonate panels
  • Fibre Cement panels.
MSS Fastener Application Diagram

HEAD TYPES

1/4” Hexwasher head

Low profile Pancake head

FIVE PANEL

THICKNESSES UP TO:

.100 / .250 / .375 / .500 / .750

Illustration of MSS Fastener
Illustration of MSS Fastener

Master Seal

Sealing Washer

Provides a

cushioned expansion

Image of Master One Steppers Available Coatings
All content © Leland Industries Inc. All rights reserved.
Image of Leland Industries Logo Image of Pinty's Series Nascar Logo
Master Grippers®
Master Drillers®
Master Grippers MDP®
Master Drillers® Plymetal
Master One Steppers®
Master Nylon Headed Fasteners®
Master Deckers®
Capscrews
Tapping/Wood Screws
Machine Screws
Master Tappers®
Fastener Selection Guide (PDF)
Stainless Steel Guidelines (PDF)
Image of Screw Title Graphic
MSS Fastener Application Diagram
Illustration of MSS Fastener
Illustration of MSS Fastener
Image of Master One Steppers Available Coatings
All content © Leland Industries Inc. All rights reserved.
Image of Leland Industries Logo Image of Pinty's Series Nascar Logo
SCREWS
Master Grippers®
Master Drillers®
Master Grippers MDP®
Master Drillers® Plymetal
Master One Steppers®
Master Nylon Headed Fasteners®
Master Deckers®
Capscrews
Tapping/Wood Screws
Machine Screws
Master Tappers®
Fastener Selection Guide (PDF)
Stainless Steel Guidelines (PDF)
Image of Screw Title Graphic
Illustration of MSS Fastener
Illustration of MSS Fastener
MSS Fastener Application Diagram
MSS Fastener Application Diagram
Image of Master One Steppers Available Coatings
All content © Leland Industries Inc. All rights reserved.
Image of Leland Industries Logo Image of Pinty's Series Nascar Logo
SCREWS
Image of Screw Title Graphic
Master Grippers®
Master Drillers® Plymetal
Master Grippers MDP®
Master Nylon Headed Fasteners®
Master One Steppers®
Capscrews
Master Deckers®
Machine Screws
Tapping/Wood Screws
Fastener Selection Guide (PDF)
Master Tappers®
Stainless Steel Guidelines (PDF)
Master Drillers®
Illustration of MSS Fastener
Illustration of MSS Fastener
MSS Fastener Application Diagram
MSS Fastener Application Diagram
Image of Master One Steppers Available Coatings
All content © Leland Industries Inc. All rights reserved.
Image of Leland Industries Logo Image of Pinty's Series Nascar Logo
SCREWS
Image of Screw Title Graphic
Master Grippers®
Master Drillers® Plymetal
Master Grippers MDP®
Master Nylon Headed Fasteners®
Master One Steppers®
Capscrews
Master Deckers®
Machine Screws
Tapping/Wood Screws
Fastener Selection Guide (PDF)
Master Tappers®
Stainless Steel Guidelines (PDF)
Master Drillers®
Illustration of MSS Fastener
Illustration of MSS Fastener
MSS Fastener Application Diagram
MSS Fastener Application Diagram
Image of Master One Steppers Available Coatings
All content © Leland Industries Inc. All rights reserved.