Description
Overview
The GRK Fasteners R4 Multi-Purpose Screw (121050) is designed for general woodworking, framing, decking, and plastic fastening applications requiring a high-performance, corrosion-resistant screw in contractor-volume quantities.
| Specification | Detail |
|---|---|
| MPN | 121050 |
| Brand / Sub-Brand | GRK Fasteners / R4 |
| Size | #9 x 3-1/8 in. |
| Package Quantity | 720 per bucket |
| Weight | 1.57 lb |
| Material | Steel |
| Finish / Coating | Climatek Coated |
| Thread Type | W-Cut (CEE Thread) |
| Drive Style | Star Drive (T25) |
| Head Type | Round Head |
| Self-Drilling | Yes |
| Packaging Type | Bucket |
| Indoor / Outdoor | Indoor and Outdoor |
| Treated Lumber Approved | Yes |
| UPC | 628611121053 |
Technical Features
- Climatek Corrosion-Resistant Coating: Steel screws are coated with Climatek finish, enabling safe use in outdoor environments and with treated lumber without premature corrosion.
- W-Cut CEE Thread Profile: The no-split CEE thread design reduces wood-splitting during fastening, maintaining substrate integrity across framing and decking applications.
- Star Drive Head (T25): The zero-stripping star drive geometry maximizes bit-to-fastener contact, reducing cam-out and driver wear; a T25 bit is included in the bucket.
- Self-Drilling Point: Creates its own pilot hole and countersink, eliminating the need for pre-drilling in standard wood and plastic substrates and accelerating installation speed.
- Dust-Ejection Design: Thread geometry transports material dust away from the edge of the screw hole, producing a cleaner bore and tighter seating.
- 720-Count Contractor Bucket: High-volume packaging at 1.57 lb total weight supports continuous job-site use without frequent restocking.
- Treated Lumber Approved: Coating is rated for use with ACQ and other treated lumber, broadening compatibility for deck and outdoor framing projects.
Applications
- Residential and light commercial wood framing
- Deck construction and decking board fastening
- General woodworking assemblies
- Plastic substrate fastening
- Indoor and outdoor installations requiring corrosion resistance
- Treated lumber structures
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