Simpson Strong-Tie SDS Screw 1/4" x 1-1/2" (300-Pack)

Engineered for heavy-duty connector and wood-to-wood applications, the Strong-Drive® SDS structural screw delivers outstanding strength, corrosion resistance and install efficiency. Featuring an improved Type-17 point, these 1/4"-diameter screws drive cleanly with no pre-drilling and minimal splitting—perfect for Simpson connectors, joist hangers and engineered lumber. Each hex-head fastener is stamped with the Simpson Strong-Tie logo and length for easy identification on the jobsite, while serrated threads bite deep to resist pull-out and maximize load capacity.

With a durable double-barrier (DB) coating, these screws withstand exterior environments and help protect against rust and corrosion. The integrated 0.500" washer under the 3/8" hex head ensures a broad bearing surface, reducing the need for separate washers and speeding up installation. Packaged in convenient 300-piece quantities, the SDS25112MB is the go-to choice for professionals and serious DIYers alike.

Key Features

• Type-17 point for rapid entry with no predrilling and less wood splitting
• 3/8" hex head with 0.500" integrated washer for wide bearing area
• Head stamped with Simpson Strong-Tie logo and fastener length
• Serrated threads for superior holding power and shear resistance
• Corrosion-resistant double-barrier (DB) coating for exterior durability
• Compatible replacement driver bit: BITHEXR38-R1 (sold separately)
• 300 screws per pack for bulk projects

⚠️ WARNING: This product can expose you to Tetrabromobisphenol A known to the State of California to cause cancer and Epichlorohydrin known to cause birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.