Description
Overview
The GRK Fasteners RSS Mini Structural Screw (14225) is designed for structural fastening applications including carrying beams, ledger boards, stair rails, deck posts, playground equipment, and other professional-grade installations requiring a reliable interior or exterior fastener.
| Specification | Detail |
|---|---|
| MPN | 14225 |
| Brand | GRK Fasteners |
| Diameter | 5/16 in. |
| Length | 4 in. |
| Package Quantity | 25 screws |
| Material | Specially hardened steel |
| Finish / Coating | Climacoat |
| Thread Type | W-Cut |
| Head Type | Washer Head |
| Drive Style | Star (Torx-style) |
| Self Tapping | Yes |
| Self Drilling | Yes |
| Driver Bit Included | Yes |
| Indoor / Outdoor Use | Indoor and Outdoor |
| Packaging Type | Clamshell |
| Package Weight | 1.15 lb |
| UPC | 772691142252 |
Technical Features
- Specially hardened steel construction provides the structural strength required for load-bearing connections in beams, posts, and ledger boards.
- W-Cut thread design reduces driving torque and material friction, allowing faster penetration with less effort and reduced risk of wood splitting.
- Self-drilling and self-tapping tip (Zip Tip) eliminates the need for pre-drilling pilot holes, speeding up installation on the job site.
- Climacoat finish provides corrosion resistance for both interior and exterior applications, including exposed outdoor environments such as decks and playground equipment.
- Washer head design distributes clamping load over a wider surface area, improving pull-through resistance in structural connections.
- Star drive style reduces cam-out compared to Phillips-style drives, maintaining positive bit engagement under high torque.
- Driver bit included package is job-site ready without requiring a separate bit purchase.
- Clamshell packaging, 25-pack convenient quantity for targeted structural projects with clear product visibility at point of sale or storage.
Applications
- Carrying beams and structural lumber connections
- Ledger board attachment to framing
- Deck post and rail fastening
- Stair rail installation
- Playground equipment assembly
- General professional structural fastening interior and exterior
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