Simpson Strong-Tie SDWH27400G 4" Timber Hex HDG Structural Screw 350ct
The SDWH Timber-Hex HDG screw is a 0.276"-diameter hot-dip galvanized screw suitable for marine and coastal applications. The SDWH Timber-Hex HDG screw has a SawTooth™ point and oversized integral washer that makes for fast installations; no predrilling or separate washer needed. Speed up your next pile job by replacing 3/4" and 5/8" HDG bolt/washer/nut assemblies (two screws for one bolt in many conditions) with the Strong-Drive SDWH Timber-Hex HDG screw. 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.
Key Features
- 0.276" shank diameter for heavy-duty structural applications
- ASTM A153 Class-C hot-dip galvanized coating suitable for coastal and marine environments
- SawTooth point design for fast starts and no predrilling
- Oversized 0.93"-diameter integral washer eliminates the need for a separate washer
- 3/8" hex drive for secure driving (replacement driver bit — BITHEXR38-134)
- US Patent 9,523,383
Applications - Structural wood-to-wood, engineered wood, including ledgers and pile connections
Installation- Install Tip: For best results, use a minimum of 1/2" low-speed corded drill to install
Specifications:
| Coating/Material | Hot-Dip Galvanized, Class C |
| Length (in.) | 4 |
| Head Diameter (in.) | 0.930 |
| Shank Diameter (in.) | 0.276 |
| Drive Type | 3/8" Hex |
| Head Type | Large Hex Washer Head |
| Thread Type | Serrated Threads |
| Thread Length | 3 |
| Point Type | SawToothâ„¢ Point |
| Packaging Qty. | 350 |
