Backer Board Screws & Washers

⚡ Factory Direct Price | Free Samples Available | 12-Hour Quick Response

Key Specifications & Features

Item Standard Value
System Components Manufacturer Spec Claw Washers + Plastic Spiral Screws + Self-Tapping Screws
Washer & Screw Material EN 10346 / AISI 304 / C1022 Galvanized Steel / Stainless Steel / Hardened Carbon Steel
Spiral Anchor Material ISO 1874 High-Impact Nylon (PA6 / Heavy-duty PP)
Claw Washer Dimensions Manufacturer Spec Ø 35 mm / 36 mm (Thickness: 0.8 - 1.0 mm)
Spiral Anchor Lengths Manufacturer Spec 50 mm / 80 mm / 110 mm
Self-Tapping Screw Specs DIN 7504 / ISO 1478 ST4.2 / ST4.8 (Length: 25 mm - 100 mm)
Pull-Through Resistance (Washer) EN 14566 ≥ 0.85 kN
Anchoring Pull-Out Load (Spiral) ETAG 014 ≥ 0.25 kN (in XPS Board Core)
Thermal Bridge Performance EOTA TR 025 0.000 W/K (Zero Thermal Bridge with Plastic Screws)
Corrosion Protection EN ISO 9227 (Salt Spray) ≥ 500 h (Zero red rust under salt fog test)

Multi-Layer Structure & Core Advantages

Engineered with a high-density XPS core and dual-side fiberglass mesh mortar for 100% waterproof performance and ultimate bond strength.

XPS tile backer board exploded view showing polymer mortar, fiberglass mesh and extruded polystyrene core layers
Top Layer: Polymer Cement Mortar & Fiber Mesh

Provides superb tile adhesive bonding strength and prevents surface cracking under heavy loads.

Core Layer: High-Density Closed-Cell XPS

100% waterproof and vapor-impermeable core providing thermal insulation and moisture resistance.

Bottom Layer: Reinforced Polymer Mortar

Ensures high flexural strength and solid anchoring to subfloors or wall framing.

Ultra-Lightweight & Easy Handling

80% lighter than traditional cement backer boards, dramatically reducing shipping costs and job-site fatigue.

100% Waterproof & Mold Proof

Zero water absorption protects underfloor heating and wall structures from moisture degradation.

Fast & Clean Installation

Can be cut easily with a standard utility knife without creating hazardous dust or requiring power tools.

High Compressive Strength (≥ 300 kPa)

Withstands heavy tile and stone loads, making it ideal for commercial floors, wet rooms, and spa areas.

System Applications & Accessories

Waterproof sealing band tape roll for backer board joint waterproofing Stainless steel fixing washer discs with claws for tile backer board Polymer adhesive sealant foil sausage for tile backer board joint sealing Galvanized steel U-channel and H-profile joint connectors for XPS boards Bucket of liquid waterproofing membrane for XPS tile backer board coating Waterproof pipe collar seal for XPS tile backer board plumbing penetrations Plastic insulation fixing anchors for XPS tile backer board installation Internal corner trowel applicator tool for waterproofing tape sealing Helical plastic spiral dowel screws for securing XPS tile backer boards Self-adhesive fiberglass mesh tape for XPS board joint reinforcement Corrosion-resistant self-tapping screws for fixing tile backer boards Pre-formed inside and outside waterproof corners for tile backer board system

One-stop procurement of all necessary installation and waterproofing accessories.

Ready to Upgrade Your XPS Supply Chain?
Contact our engineering team today to receive direct factory pricing, flexible mixed-container shipping options, or request a free sample kit for market testing.
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12-Hour Fast Professional Response
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Free Sample Kits Available for Market Testing
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Direct Factory Pricing & Full OEM/ODM Support