Description
Overview
The GRK RSS Black Structural Screw (95412) is designed for structural fastening applications requiring high-strength connections in both interior and exterior environments, including treated lumber installations.
| MPN | 95412 |
|---|---|
| Brand | GRK Fasteners (ITW Brands) |
| Size | 5/16 x 4 in. |
| Pack Quantity | 25 |
| Weight | 1.29 lb |
| Color / Finish | Black (Climatek Coating) |
| Drive Type | Star Drive |
| Head Type | Washer Head |
| Coating Approval | Code-approved for treated lumber; rated for intermittent moisture exposure |
| Category | Hardware / Structural Fasteners |
Technical Features
- Zip-Tip (Fast Bite Tip): Proprietary point geometry bites instantly into material including hardwood enabling fast starts and reducing the need for pre-drilling in most wood types.
- W-Cut Thread: Engineered thread profile drives into wood with reduced installation effort compared to conventional lag screws, lowering operator fatigue on high-volume fastening tasks.
- Reduced Splitting Shank Design: The shank geometry is engineered to reduce the splitting effect commonly caused by smaller or conventional fastener profiles, preserving material integrity at the connection point.
- Washer Head with Shoulder: The washer head features no sharp edges for a clean bearing surface, while an added shoulder beneath the washer head centers the screw in pre-drilled hardware holes for precise, consistent placement.
- Star Drive Recess: Six-lobe star drive interface eliminates cam-out under high torque, maintaining drive engagement throughout the full seating stroke and reducing stripped fasteners.
- Climatek Coating (Black): Provides corrosion resistance suitable for both interior and exterior conditions where intermittent moisture exposure is expected; code-approved for use with treated lumber.
- No Pre-Drilling Required (Most Woods): The combined Zip-Tip and W-Cut thread design enables direct installation into most wood substrates, reducing setup time and tool requirements on the job site.
Applications
- Structural wood-to-wood connections in framing, decking, and general construction
- Fastening into treated lumber in exterior and ground-contact applications where intermittent moisture exposure is present
- Hardwood fastening where splitting risk and pre-drilling requirements are primary concerns
- Installations utilizing pre-drilled structural hardware, brackets, or connectors requiring centered fastener placement
- Applications demanding a finished black aesthetic alongside structural-grade holding performance
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