RST Restraint Strap Twist
The RST is a high performance strap which can be used to resist uplift.
Applications can be found on pages 11 and 13
Part of the Cullen Gable Restraint System – Pg13
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 — Also a suitable strap for providing lateral restraint to timber gables (see page 13) — Lighter than traditional twist straps reducing manual handling risk — Achieves greater tensile capacity before reducing centres enabling us to outperform competitors’ solutions — Installation videos available for all detailed applications
RST–1
Material Specification — 30 x 1.2mm Galvanised mild steel – Z275
RST–2
Fixings To be specified by building designer
Dimensions (mm)
RST–3
Available Sizes
Y
Dimensions (mm)
Product Code
RST-1
X
Y
Z
4mm dia fixing holes
RST–1 RST–2 RST–3
405 848
205 275 275
200 573
RST-2
1350
1075
Fixing Hole Qty
6mm dia fixing holes
Product Code
4mm Ø
6mm Ø
RST-3
Y 6 8 8
Z 3 8
RST–1 RST–2 RST–3
X
15
Z
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)
The latest version of the technical guide will always be the digital format on our website.
Technical support: 01592 771132 / technical@itwcp.com / https://www.itwcp-offsite.co.uk 6
Made with FlippingBook interactive PDF creator