Evolution A4HH6.3-45-GP 45mm A4 Stainless Steel Gash Point Concrete Screw (Box of 100) by Evolution Fasteners

The Evolution A4HH6.3-45-GP is a 45mm stainless steel multi-fix screw designed for securing timber battens, trunking, track, and general components into concrete, masonry, and timber. Manufactured from A4 (316) stainless steel, this high-performance screw provides superior corrosion resistance, making it ideal for external applications and harsh environments. The gash point tip ensures fast installation with minimal effort, creating a secure and reliable fixing.

Key Features

• A4 Stainless Steel (316 Grade): Provides excellent corrosion resistance, suitable for coastal, marine, and outdoor applications.
• Gash Point Tip: Allows fast self-drilling into timber, concrete, and masonry without requiring pre-drilling in most cases.
• High Holding Power: Strong pull-out resistance in a range of substrates, including C35 concrete, aerated blocks, and Class B engineering bricks.
• Hex Flange Head:5/16” (8mm) hexagonal head for high torque driving and secure installation.
• Multi-Substrate Fixing: Designed for timber-to-concrete, timber-to-masonry, and direct fixing into timber structures.
• Electroplated Zinc Coating: Provides additional protection against oxidation and ensures durability in exposed environments.
• Bulk Packaging: Supplied in a box of 100, ideal for large-scale construction and site use.

Applications

• Fixing Timber Battens to Concrete and Masonry – Used in cladding, framework, and flooring installations where secure fixing into hard materials is required.
• Securing Electrical Trunking and Metal Track Systems – Suitable for mechanical and electrical installations where a firm hold in masonry or concrete is necessary.
• General Construction Fastening – Ideal for joining structural components, including fixing timber to engineering brick, aerated blocks, and standard concrete blocks.
• Outdoor and Harsh Environments – A4 stainless steel ensures long-term durability in wet, humid, and corrosive conditions.

Specification

• Screw Size: 6.3mm x 45mm
• Material: A4 Stainless Steel (316 Grade)
• Head Type:5/16” (8mm) hexagonal head with integrated flange
• Drill Tip: Gash Point (self-drilling into soft materials)
• Embedment Depth:35mm recommended for full holding power in masonry and concrete
• Pull-Out Resistance:
  • C35 Concrete:5,800N
  • Aerated Concrete:3,900N
  • Class B Engineering Brick:5,700N
• Tensile Capacity: 14,100N | Shear Strength: 9,700N