GRK Deck Screw: 5/16 in Size, 4 in Lg, Steel, Climatek, Round, Torx/Star
The GRK Deck Screw (5/16 in size, 4 in length) is a steel fastener with Climatek™ coating, a round head, and Torx®/Star drive (T30). It features a partially threaded thread style and is supplied in a 100-pack (MPN…
SKU 3G-OTH-744628
Also listed as: GRK 12225 · GRK-12225
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
Need installation or engineering help?
Ask a question
Product Description
The GRK Deck Screw (5/16 in size, 4 in length) is a steel fastener with Climatek™ coating, a round head, and Torx®/Star drive (T30). It features a partially threaded thread style and is supplied in a 100-pack (MPN GRK12225).
Frequently Asked Questions
What is the GRK 5/16 in deck screw used for?
The GRK 5/16 in deck screw is designed for fastening wood decking, joists, and outdoor timber structures. Its Climatek™ coating provides corrosion resistance for exterior use, while the partially threaded shank and Torx®/Star T30 drive ensure secure, flush seating in pressure-treated lumber.
What are the specifications of the GRK12225 deck screw?
The GRK12225 deck screw has a screw size of 5/16 in, length of 4 in, and a T30 Torx®/Star drive. It is made of steel with a Climatek™ coating, features a round head and partially threaded thread style, and comes in a 100-pack. The manufacturer part number is GRK12225.
Where to buy GRK deck screws in worldwide?
3G Electric supplies GRK deck screws worldwide, handling full logistics and customs clearance for international orders. As a global industrial sourcing partner, we provide genuine GRK fasteners like the 5/16 in x 4 in Climatek™ screw (GRK12225) to customers across multiple industries, ensuring reliable delivery to your location.
How to install GRK 5/16 in deck screws?
Pre-drill a pilot hole slightly smaller than the screw shank to prevent splitting. Use a T30 Torx®/Star bit at low to medium torque to drive the screw flush with the wood surface. For exterior decks, ensure the Climatek™ coating remains intact; avoid over-torquing to maintain thread grip in treated lumber.
GRK Products
3G Electric supplies GRK deck screws for wood. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
