The Simpson Strong-Tie Strong-Drive SDS Heavy-Duty Connector screw is a 1/4 inch diameter high-strength structural wood screw ideal for various connector installations as well as wood-to-wood applications. It installs with no predrilling and has been extensively tested in various applications. The SDS is improved with a patented easy driving 4CUT tip and a corrosion-resistant double-barrier coating. The SDS Strong-Drive 1/4 inch wood screw line has expanded to include stainless-steel SDS screws in 1 1/2 inch to 3 1/2 inch 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 new stainless-steel SDS screws are appropriate for higher-exposure environments where maximum corrosion-resistance is required.

• Brand Name: Simpson Strong-Tie
• Sub Brand: Strong-Drive
• Callout Size: No. 3 Sizes
• Length: 5 in.
• Drive Style: Star
• Head Type: Hex Head
• Product Type: Structural Screws
• Container Size: 1.5 lb
• Number in Package: 25 pk
• Color: Silver
• Indoor or Outdoor: Outdoor
• Diameter: 1/4 in.
• Finish: Double-Barrier Coating
• Packaging Type: Boxed
• Thread Type: Serrated
• Application: Wood-to-Wood Connections
• Material: Stainless Steel
• Patented 4CUT tip (coated version) and Type-17 point (stainless vesion) enable easy driving with no predrilling and minimal wood splitting
• 3/8 inch hex head with 0.48 inch integrated washer
• Available with a double-barrier coating and Type 316 stainless steel
• Head is stamped with the Simpson Strong-Tie and fastener length for easy identification after installation
• Replacement driver bit - BITHEXR38-134