

Simpson Screws SDS25312SS-R25 1/4"x3-1/2" 2-1/4" Thread Structure Wood, 25/PK
Key item features
- Made in the USA
- Designed for wood or Simpson connector applications
- Double-barrier coating provided corrosion resistance equivalent to hot-dip galvanization
- 316 Stainless steel
- Bit enclosed in each package
- No pre-drilling required
Specs
- Hardware screw typeWood
- MaterialStainless Steel
- Rec. useInterior, Exterior
- ColorSilver
- BrandSimpson Strong-Tie
- Pieces25
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About this item
Product details
Simpson Strong-Tie SDS25312SS-R25 3-1/2" Stainless Structural Wood Screw 25ct
The Simpson Strong-Tie Strong-Drive SDS Heavy-Duty Connector screw is a 1/4"-diameter high-strength structural screw ideal for various connector installations as well as wood-to-wood and engineered wood applications. It installs with no predrilling and has been extensively tested in various applications. The SDS is improved with an easy-driving Type-17 point and a corrosion-resistant double-barrier coating.
The SDS Strong-Drive 1/4" wood screw line has expanded to include stainless-steel SDS screws in 1 1/2" to 3 1/2" lengths, suitable for fastening Simpson Strong-Tie stainless-steel products. Offering the same easy-driving, split-reducing installation of the standard SDS screw, these screws are made from Type 316 stainless steel. The stainless-steel SDS screws are appropriate for higher-exposure environments where maximum corrosion-resistance is required.
Key Features
- Available with a double-barrier coating and Type 316 stainless steel
- Type-17 point (coated and stainless versions) enable easy driving with no predrilling and minimal wood splitting
- 3/8" hex head with 0.48" integrated washer
- Head is stamped with the Simpson Strong-Tie "≠" sign and fastener length for easy identification after installation
- Replacement driver bit — BITHEXR38-134
- Heavy-duty Simpson Strong‑Tie connectors
- Install Tip: A low-speed 1/2" drill with a 3/8" hex driver is the recommended tool for installation
- SDS25312SS-R25L, SDS25312-R25L and SDS25500-R25L packaged in a ledger-specific box with 3/8" hex-driver bit
Specifications:
| Coating/Material | Type 316 Stainless Steel |
| Length (in.) | 3 1/2 |
| Shank Diameter (in.) | 1/4 |
| Drive Type | 3/8" Hex |
| Head Type | Hex Head |
| Thread Type | Serrated Threads |
| Thread Length | 2 1/4 |
| Point Type | Type-17 Point |
| Packaging Qty. | 25 |
- Made in the USA
- Designed for wood or Simpson connector applications
- Double-barrier coating provided corrosion resistance equivalent to hot-dip galvanization
- 316 Stainless steel
- Bit enclosed in each package
- No pre-drilling required
Specifications
Hardware screw type
Material
Rec. use
Color
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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