# Simpson Strong-Tie 1/4 in. x 3-1/2 in. Strong-Drive SDS Heavy-Duty Hex Drive, Hex Head, Wood Screw (25-Piece)

**Brand:** [Simpson Strong-Tie](https://shop.coreranger.com/brands/Simpson%20Strong-Tie)
**Model #:** SDS25312-R25L
**SKU:** HD-338125100
**Price:** $28 · in stock
**URL:** https://shop.coreranger.com/product/simpson-strong-tie-1-4-in-x-3-1-2-in-strong-drive-sds-heavy-duty-hex-drive-hex-head-wood-screw-25-pi-338125100

## Specifications

| Spec | Value |
|---|---|
| Size | 1/4 in |
| Features | No Additional Features |
| Head Style | Hex Head |
| Drive Style | Hex |
| Screw Length | 3-1/2 in |
| Thread Style | Serrated Thread |
| Fastener Type | Wood Screw |
| Fastener Color | Silver |
| Fastener Plating | Galvanized Steel |
| Package Quantity | 25 |
| Fastener Material | Steel |
| Interior/Exterior | Exterior,Interior |
| Measurement System | Inches |
| Product Weight (lb.) | 1.08 lb |
| Manufacturer Warranty | Limited Warranty |
| Fastener Base Material | Steel |

## Description

The Simpson Strong-Tie Strong-Drive SDS Heavy-Duty Connector screw is a 1/4 in. Dia 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.

• Hex-head design for high torque and easy driving power
• Ideal for heavy-duty wood-to-wood structural connections
• Code listed screw for strength, safety, and reliability