Simpson Strong-Tie SWD221034DBB-R30 Strong-Drive (0.235-in x 10-3/4-in) Double-Threaded Screw,T40 Black (30 Pack)
Simpson Strong-Tie SWD221034DBB-R30 Description
The Strong-Drive SWD Double-Threaded Screw is a high-performance structural fastener engineered for exterior wood-to-wood applications, including deck ledgers and general framing.
Simpson Strong-Tie SWD221034DBB-R30 Includes
- (30) Double-Threaded Wood Screw
Simpson Strong-Tie SWD221034DBB-R30 Features
- Professional grade engineered for strength, versatility, and reliability
- Double-thread design and smooth mid-shank pull members together securely
- Black, exterior-grade, double-barrier coating for corrosion resistance
- Chisel point provides easy driving for angled installation and reduced splitting
- Compact cylinder head design for low visibility, concealed installations
- 6-lobe driver bit for secure driving
- Code listed and load rated for structural applications
Simpson Strong-Tie SWD221034DBB-R30 Applications
- Deck ledger attachments to rim joists
- General exterior wood framing
- Pergolas, porches, and outdoor structural assemblies
- Wood-to-wood connections where high withdrawal strength is required
Simpson Strong-Tie SWD221034DBB-R30 Installation Overview
- No pre-drilling required in most applications, thanks to its screw chisel point
- Use with a standard driver or impact driver
- For best results, drive the screw until the head is flush with the wood surface—avoid overdriving
- Can be used with treated lumber, following coating compatibility guidelines
Simpson Strong-Tie SWD221034DBB-R30 Specifications
| Diameter | 0.235″ |
| Finish | Double-Barrier Coating |
| Length | 10-3/4″ |
| Material | Carbon Steel |
| Color | Black |
| Drive type | T40 6-Lobe |
| Head diameter | 0.394″ |
| Head type | Cylinder Head |
| Point type | Screw Chisel Point |
| Quantity | 30 |
| Shank style | Unthreaded Mid-Shank |
| Thread length | 4-1/4″ |
| Thread type | Double Thread |
