We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

GRK Deck Screw: 5/16 in Size, 3 1/8 in Lg, Steel, Climatek, Round, Torx/Star - Deck Screws for Wood
GRKDeck Screws for Wood

GRK Deck Screw: 5/16 in Size, 3 1/8 in Lg, Steel, Climatek, Round, Torx/Star

The GRK Deck Screw (5/16 in size, 3 1/8 in length) is a steel, partially threaded fastener with a Climatek™ coating, round head, and T30 Torx®/Star drive, supplied in a 100-pack (MPN GRK12221). 3G Electric interprets…

SKU 3G-OTH-744640

Also listed as: GRK 12221 · GRK-12221

Brand
GRK
Item
Deck Screw: 5/16 in Size, 3 1/8 in Lg, Steel, Climatek, Round, Torx/Star
Category
Deck Screws for Wood
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

GRK
Manufacturer Part Number
GRK12221
Type
Steel, Climatek™, Round, Torx®/Star, 100 PK
Lg
3 1/8 in
Drive Size
T30
Screw Size
5/16 in
Thread Style
Partially Threaded

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

GRK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GRK Deck Screw (5/16 in size, 3 1/8 in length) is a steel, partially threaded fastener with a Climatek™ coating, round head, and T30 Torx®/Star drive, supplied in a 100-pack (MPN GRK12221). 3G Electric interprets demand for this OEM product across 14 industrial departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as a trust anchor, not a limit.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the GRK 5/16 in deck screw used for?

The GRK 5/16 in deck screw is used for fastening wood decking, joists, and outdoor structures. Its partially threaded design and Climatek™ coating provide corrosion resistance for exterior applications. 3G Electric supplies this OEM fastener across 14 industrial departments, with specialist depth in combustion, pumps and controls.

What are the specifications of the GRK12221 deck screw?

The GRK12221 deck screw has a 5/16 in screw size, 3 1/8 in length, steel construction with Climatek™ coating, round head, T30 Torx®/Star drive, and partially threaded thread style. It comes in a 100-pack. 3G Electric sources this GRK fastener for global industrial customers.

Where to buy GRK deck screws in worldwide?

You can buy GRK deck screws worldwide through 3G Electric, which handles full logistics, customs clearance, and delivery to your site. As a global industrial supplier, we source OEM fasteners like the GRK12221 across 14 departments, including specialist expertise in combustion, pumps and controls.

How to install a GRK 5/16 in deck screw?

To install a GRK 5/16 in deck screw, pre-drill a pilot hole slightly smaller than the screw diameter, then drive with a T30 Torx®/Star bit at low speed to avoid stripping. The partially threaded design pulls boards tight. 3G Electric supplies this GRK fastener for wood applications worldwide.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from GRK

View all GRK parts
Deck Screw: #10 Size, Steel, Climatek™, Flat, Torx®/Star, 800 PK (MPN GRK00143)
GRK
Deck Screw: #10 Size, Steel, Climatek™, Flat, Torx®/Star, 800 PK (MPN GRK00143)
Deck Screw: #12 Size, Steel, Climatek™, Flat, Torx®/Star, 1,000 PK (MPN GRK00177)
GRK
Deck Screw: #12 Size, Steel, Climatek™, Flat, Torx®/Star, 1,000 PK (MPN GRK00177)
Deck Screw: #9 Size, Steel, Climatek™, Flat, Torx®/Star, 575 PK (MPN GRK01101)
GRK
Deck Screw: #9 Size, Steel, Climatek™, Flat, Torx®/Star, 575 PK (MPN GRK01101)
Deck Screw: #10 Size, Plain, Flat, Torx®/Star, 240 PK (MPN GRK61633)
GRK
Deck Screw: #10 Size, Plain, Flat, Torx®/Star, 240 PK (MPN GRK61633)
Deck Screw: 3/8 in Size, 12 in Lg, Steel, Climatek™, Round, Torx®/Star, 300 PK (MPN GRK10299)
GRK
Deck Screw: 3/8 in Size, 12 in Lg, Steel, Climatek™, Round, Torx®/Star, 300 PK (MPN GRK10299)
Deck Screw: 5/16 in Size, 6 in Lg, Steel, Climatek™, Round, Torx®/Star, 300 PK (MPN GRK10235)
GRK
Deck Screw: 5/16 in Size, 6 in Lg, Steel, Climatek™, Round, Torx®/Star, 300 PK (MPN GRK10235)
Deck Screw: #9 Size, Steel, Climatek™, Flat, Torx®/Star, 3,700 PK (MPN GRK00099)
GRK
Deck Screw: #9 Size, Steel, Climatek™, Flat, Torx®/Star, 3,700 PK (MPN GRK00099)
Deck Screw: 3/8 in Size, 8 in Lg, Steel, Climatek™, Round, Torx®/Star, 300 PK (MPN GRK10287)
GRK
Deck Screw: 3/8 in Size, 8 in Lg, Steel, Climatek™, Round, Torx®/Star, 300 PK (MPN GRK10287)