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RST Restraint Strap Twist
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Applications can be found on pages 130,132 and 133
The RST is a high performance strap which can be used to resist uplift.
Part of the Cullen Gable Restraint System – Pg134 - 135 Features & Benefits — Unique geometry allows a fixing on two planes without the clash issues of standard twist straps — Suitable for timber frame and masonry walls — Can be used independently or in addition to truss clips/ framing anchors/hangers (see page 132) — Also a suitable strap for providing lateral restraint to timber gables (see page 134)
RST–1
Material Specification — 30 x 1.2mm Galvanised mild steel – Z275
RST–2
Fixings To be specified by building designer
Dimensions (mm)
Y
RST–3
Available Sizes
RST-1
4mm dia fixing holes
Dimensions (mm)
Product Code
X
Y
Z
RST-2
RST–1 RST–2 RST–3
405 848
205 275 275
200 573
1350
1075
6mm dia fixing holes
RST-3
Fixing Hole Qty
Product Code
4mm Ø
6mm Ø
Y 6 8 8
Z 3 8
X
RST–1 RST–2 RST–3
Z
15
Load Data
Performance
Tensile Capacity (kN) Characteristic Tensile Capacity (kN)
Strap only
7.50
11.80
Performance
Fixings (3.4x35mm)
Characteristic Capacity (kN)
3 4 5
5.69 6.23 6.76
Strap attached to truss/solid timber (Min. C16)
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Technical support 01592 771132 / technical@itwcp.com / https://www.itwcp-offsite.co.uk
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