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HI.FORCE Washer Head Screw

Ideal for playground equipment, pergolas, porches, bridges, balconies, and other outdoor construction, the SPAX washer head screw is a modern, innovative screw for timber connections, designed as an easy, economical replacement for coach screws and bugle batten screws.

It is a partial thread screw with a large head for clamping timber components tightly together. The large head also provides high resistance to the timber pulling over the head.

Key Features
  • Quick and easy installation compared with traditional wood screws, saving time and money
  • Higher load capacities due to coarse thread design and high strength steel
  • Large head diameter to increase head pull-through load
  • Four-cut point and serrated thread for reduced chance of splitting the timber and reduced screwing-in torque
  • Unique T-STAR plus recess for better torque transfer and reduced chance of stripping the head
  • DELTA-SEAL coating for superior corrosion protection and resistance to timber treatments
  • Also available in 304 grade stainless steel
Scope of Use
  • Pergolas and carports
  • Retaining walls
  • Boardwalks
  • Bridges
  • Top and bottom plate connections
  • Framing and roof structures
  • CLT, LVL and Glulam connections
Limitations on Use
  • Stainless steel A2 for outdoor use with direct exposure to the weather
  • Stainless steel A4 for applications in coastal areas
Statement of Building Code Compliance

SPAX products are manufactured in Germany and comply with the latest European requirements but have also been tested in local New Zealand timbers.

Timber connection design can be performed according to either European Technical Assessments or to NZS 3603.

Other Performance Attributes
  • Testing conducted on local timbers for timber connection design according to NZS 3603
  • Wall plate connections tested for compliance with NZS 3604
Data Sheet: Washer Head Screws
Wall Plate to Stud Fixing

SPAX is a German manufacturer of quality, innovative screws for timber connections such as framing, timber construction, decking, flooring, and cladding.

Product Enquiries

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