Simpson Strong-Tie SDWS22400DB-R12 4" x .220 Timber Screws (Exterior Grade) 12ct
Designed to provide an easy-to-install, high-strength alternative to through-bolting and traditional lag screws. The Strong-Drive SDWS Timber Screw (Exterior Grade) is ideal for the contractor and do-it-yourselfer alike. It is code listed under IAPMO UES ER-192 and meets 2015 and 2018 IRC and IBC code requirements for several common wood framing applications.
- SawTooth point ensures fast starts, reduces installation torque and eliminates the need for predrilling in most applications
- Bold thread design provides superior holding power
- Underhead nibs offer greater control when seating the head
- Large low-profile washer head provides maximum bearing area (0.75" head dia.)
- Size identification on all SDWS screw heads
- 6-lobe T40 drive provides positive engagement that makes the screw easy to drive and improves bit life (replacement driver bit — BIT40T-134-RC)
- U.S. Patent 9,523,383
Applications
- Structural wood-to-wood/engineered including ledgers; mass timber connections including CLT wall-to-wall, floor-to-floor, surface splines and lap joints
Specifications:
| Coating/Material | Double-Barrier Coating |
| Length (in.) | 4 |
| Head Diameter (in.) | 0.750 |
| Shank Diameter (in.) | 0.220 |
| Drive Type | T40 6-Lobe |
| Head Type | Washer Head |
| Thread Length | 2 3/8 |
| Point Type | SawToothâ„¢ Point |
| Packaging Qty. | 12 |
