Description
Overview
GRK Fasteners RSS Black Structural Screw (95312) is designed for outdoor structural connections and decking applications requiring a corrosion-resistant, aesthetically consistent fastener solution. Sold in a 25-count pack, this 5/16″ x 3-1/8″ screw is engineered for use with treated lumber and delivers consistent performance in demanding exterior environments.
| Specification | Detail |
|---|---|
| MPN | 95312 |
| Brand | GRK Fasteners |
| Manufacturer | ITW Brands |
| Size | 5/16″ x 3-1/8″ |
| Pack Quantity | 25 |
| Color / Finish | Black Coating |
| Drive Type | Star Drive (Torx-style) |
| Head Type | Washer Head |
| Weight (Pack) | 1.06 lb |
| Category | Hardware / Structural Fasteners |
| Approved Use | Treated Lumber |
Technical Features
- Black Coating, Approved for Treated Lumber: The black finish is rated for use with chemically treated lumber, preventing coating degradation from preservative compounds while delivering a bold, uniform appearance in exposed structural connections.
- Fast Bite Tip: The engineered tip geometry initiates thread engagement immediately upon contact, reducing drive time and eliminating the need for pre-drilling in typical structural applications.
- Washer Head Design: The integrated washer head distributes clamping load across a broader bearing surface, increasing pull-through resistance and overall joint integrity.
- Star Drive Head: The star drive recess maximizes driver-to-fastener contact, virtually eliminating cam-out and stripping under high-torque installation particularly critical in structural assemblies where fastener head damage is unacceptable.
Applications
- Outdoor deck framing and decking board attachment
- Structural connections in treated lumber assemblies
- Exterior wood construction where a finished black appearance is specified
- Applications requiring approved fasteners for ACQ, CA, or similarly treated wood products
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