Simpson Strong Tie SDS25312-R25 Structural Screw 900CT

Product Description

The SIMPSON STRONG TIE SDS25312-R25 is a heavy-duty structural connector screw designed for load-bearing fastening applications in wood framing, decking, and structural connector installations. Measuring 1/4 inch in diameter by 3-1/2 inches in length, this screw delivers strong pull-through resistance and shear capacity at connection points. The DB coating provides corrosion resistance suitable for treated lumber and exterior exposure conditions. Each package contains 900 screws, making it well-suited for production framing, large deck builds, and contractor-volume structural work. This is a professional-grade fastener used by carpenters, structural contractors, and general contractors who install Simpson Strong-Tie hardware and similar connector products.

The SDS25312-R25 is used in residential and light commercial wood-frame construction where engineered connector hardware requires code-compliant, high-strength screw fasteners. Typical applications include post-to-beam connections, ledger attachments, joist hangers, hold-downs, and other structural hardware installations. The 900-count package format supports large-scale framing and production decking projects where consistent fastener supply is critical to maintaining workflow on the job site.

Key Features

• 1/4 inch diameter by 3-1/2 inch length for deep structural penetration
• DB coating provides corrosion resistance for exterior and treated-lumber applications
• 900 screws per package for high-volume framing and connector installation work
• Heavy-duty construction suited for shear and withdrawal loading at connector hardware
• Compatible with structural connectors requiring screw-type fasteners per manufacturer specifications

Compatibility

Designed as a structural connector screw for use with wood-to-wood and connector-hardware fastening applications in residential and light commercial framing. Consult current Simpson Strong-Tie load tables and installation guides to confirm screw specification requirements for specific connector models.

Installation Notes

Installation should be performed by qualified carpenters or structural contractors in accordance with applicable building codes and connector manufacturer instructions. Use an appropriate power driver with a correctly sized bit to avoid stripping the drive recess and to achieve full seating depth. Do not overdrive screws into connector hardware flanges. Follow local building code requirements and engineered drawings for fastener schedules at structural connections.

Technical Specifications

• Diameter: 1/4 inch
• Length: 3-1/2 inches
• Coating: DB (corrosion-resistant)
• Package Quantity: 900 screws
• Weight: 4.3 pounds

Standard Information

• Brand: SIMPSON STRONG TIE
• Manufacturer Part Number: SDS25312-R25