Designed to provide an easy-to-install, high-strength alternative to through-bolting and traditional lag screws. The Strong-Drive SDWS Timber screw is ideal for the contractor and do-it-yourselfer alike. It is code listed under IAPMO UES ER-192 and meets 2018 and 2021 IRC and IBC code requirements for several common wood framing and engineered-wood applications.
- Fast installation  -  no predrilling, no counterboring, no heavy-duty equipment needed 
- Greater withdrawal resistance vs spikes 
- SawTooth point for fast starts and less driving torque without predrilling 
- Heavy-duty 0.275-in diameter shank provides strength and durability 
- Large 0.650-in diameter, flat washer head with nibs provides load-bearing area and seats flush with surface 
- Deep T50, 6-lobe recess for fewer cam-outs 
- Mid-shaft knurl aids in torque reduction 
- Length: 5-in 
- Type 316 stainless steel provides corrosion resistance even in severe conditions