Simpson Strong-Tie has launched an expanded line of Strong-Drive premium screws designed to provide structural fastening solutions for the construction and repair of mass timber assemblies and structures.
The popularity of cross-laminated timber (CLT) and other mass timber products continues to grow as architects, designers, and builders seek the enhanced rigidity necessary for creating larger and taller wood-framed buildings. As projects proliferate, the need for 10-millimeter diameter fasteners designed for superior bearing and splitting reinforcement has increased.
The new family of 10-millimeter Strong-Drive mass timber screws includes an impressive selection of countersinking fasteners in fully threaded, partially-threaded, cylinder-head, and flat-head options.
Rigorously tested and designed to provide strength across a wide range of designs, Simpson Strong-Tie mass timber fasteners and connectors are ideal for CLT construction and are offered through an established national network of construction suppliers. The new family of yellow-zinc-coated, 10-millimeter Strong-Drive mass timber screws includes an impressive selection of countersinking fasteners in fully threaded, partially-threaded, cylinder-head, and flat-head options to provide ultimate versatility on the job site and meet the unique fastening demands of mass timber projects.
The fully threaded Strong-Drive SDCF Timber-CF flat-head timber screw is ideal for projects where high pullout resistance with low-torque driving, excellent shear and countersunk head is desired — including beam reinforcement, wall-to-wall, floor-to-floor, support beam, butt joint, and bearing and splitting reinforcement applications. The 10mm diameter SDCF also features a fast-starting point for easy installations without the need for predrilling and is available in 100-mm (4-inch) to 600-mm (23 5/8-inch) lengths.
The partially-threaded Strong-Drive SDCP Timber-CP screw is a structural fastener engineered to pull structural members together with superb holding power and high pullout resistance. The 10 mm diameter version is available in 100-mm (4-inch) to 360-mm (14-inch) lengths and features a flat head, mid-shaft knurl, and Type-17 point for fast starts and low-torque driving without predrilling.