H Horizontal (Heavy Duty) Restraint Straps (HDMH)

Heavy duty restraint straps (galvanised edge coated) are suitable for horizontal restraint applications such as tying timber roofs and floors into masonry walls. These multi-holed straps are supplied in 100mm increments with 6mm holes at 25mm offset centres. Available straight, bent or twisted or in combinations as required in galvanised or stainless steel.


Please specify the following when ordering:
Product code / Girth / Bend or Twist position
e.g. H / 1100 / T150 = Horizontal / 1100 Girth / Twist150
Product code H = Horizontal (heavy duty)
Prefix product code with SS if stainless steel is required e.g. SSH
Girth = Overall length of strap, available in 100mm increments from 100mm to 6000mm
B or T = Bend or Twist Position (twist is approx. 50mm long)

(NOTE: The following code structure replaces the previous HDMH and SHDMH codes)

  • Standard product includes one bend or twist. Additional bends/twists/fishtails charged extra. Increments of less than 100mm will be charged at the full rate e.g. 1050mm charged at 1100mm rate.
  • Designed in accordance with The Building Regulations, BS5268 Part 3 and other building standards for vertical and horizontal restraint and tested to BS EN845-1.
  • Fixing - Restraint straps should be fixed using either 50mm long no. 12 woodscrews (using wall plugs in masonry for vertical restraint) or 75mm x 4.0mm diameter galvanised nails into timber. Stainless steel screws or nails must be used when fixing stainless steel straps. Supplied in packs of 10.
  • Dimensions - Thickness 4mm, Width 28mm, Length 100mm increments from 100mm to 3000mm.
  • Load Bearing Capacity - 8 kN.

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