Description
Strong-Drive® SDW Structural Wood Screw
The SDW is an 8.0mm diameter, high-strength structural wood screw designed for fastening multi-ply timber members together, such as plated trusses, engineered timber (LVL) and solid-sawn timber.
It installs without pre-drilling and comes in lengths optimised for 2, 3 and 4-ply trusses or 45mm engineered timber. The SDW allows fastening from one side while still allowing loads on both sides of the assembly, up to the full head-side or point-side load of the fastener.
Features
- CE marked to EN 14592
- Low-profile head reduces interference when fitting hangers and other hardware to the assembly
- High shear values allow wider screw spacing
- Bold thread clinches plies together to close gaps in multi-ply assemblies
- Optimised lengths give maximum point-side penetration
- T40 6-lobe driver bit included in every box
Specification
- Material: heat-treated carbon steel, black E-coat™ finish
- Diameter 8.0mm, core diameter 5.6mm, head diameter 19mm
- Characteristic yield moment My,k 17.4Nm; withdrawal parameter fax,k 13.2N/mm²; head pull-through parameter fhead,k 21.4N/mm²; tensile capacity ftens,k 21.4kN
- Service class 1 and 2 only (dry, interior, non-corrosive environments)
Installation
Install with a low-speed drill and the T40 6-lobe bit supplied. Pre-drilling is typically not required.
Warning: hardened fasteners can have performance problems in wet or corrosive environments. Use SDW screws only in dry, interior, non-corrosive conditions (service class 1 and 2).
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