FIN/Trim Head Climatek Screws - Handy Pak - 4.5 x 125mm - Box of 50

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£13.56 £11.30

Silva Timber is the exclusive distributor for GRK Fasteners™, manufacturer of 'The Industry's Toughest Screws'. All of GRK's products are built to last and have unique labour saving features.

FIN/Trim Head Climatek Screws - Handy Pak - 4.5 x 125mm - Box of 50

Price: £13.56
Inc. VAT
Price: £11.30
Excl. VAT
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SKU: 1177667

At a Glance

60% off Climatek screws.

  • Smallest screw head on the market.
  • W-Cut thread prevents most material splitting.
  • Excellent when a discreet screw head is required.
  • Climatek protects against damage from the natural elements.

The smallest screw head on the market.

An excellent choice where a discreet screw head is desired.

The small head, along with the W-Cut™ thread design, prevents most material splitting.

Pre-drilling is only necessary if the building material's limitations require a pilot hole to be drilled.

Self-tapping screws with a W-Cut™ thread design and Zip-Tip™.


Why Use GRK Screws?

GRK Screws are packed with unique features, saving you time and money:

  • CEE Thread enlarges the screw hole, increases the drawing strength, reduces friction, lowers the driving torque and reduces splitting.
  • Drive into hardwoods and softwoods easily without pre-drililng.
  • W-Cut™ Thread Design - patented design acts like a saw blade, cutting through fibrous materials and reducing the amount of torque required to install the screw.
  • Zip-Tip™ - designed for fast starts in any fibrous materials.

GRK Screws won't fail where others do, driving in effortlessly and significantly reducing the installation time.

Climatek™ is exclusive to GRK products. Originally designed for the Navy, GRK has adapted this coating for fasteners and rigourously tests it to meet and exceed all standards. GRK's Climatek™ coating is virtually indistinguishable from brass and its colour matches almost all wood finishes.

GRK Fasteners revolutionary Climatek™ coating is available only on GRK products.

GRK's Climatek™ coating consists of a total of six layers of various materials, including three layers of zinc-polymer.

Climatek™ has been tested for salt spray resistance, and more importantly, for Kesternich durability. Kesternich cycles are a more advanced way of testing a coated material. Each Kesternich cycle simulates heat, cold, wind, water, salt as well as a variety of other elements, whereas salt spray merely uses salt-water for its tests.

Climatek™ passed 29 Kesternich cycles, making it the most advanced coating of its kind.

PHEINOX™ stainless steel products are hardened and come with a limited lifetime guarantee against staining and rusting.

Type: FIN/TRIM Material: Climatek

Star Drive Bits

The FIN/Trim Head Climatek™ screw takes the following bit sizes:

  • 4.0 (#8) gauge - T10.
  • 4.5 (#9) gauge - T15.

One star drive bit is supplied free of charge with each 1000 (or part thereof) screws ordered.

Courier Delivery


Woodcare, fasteners and accessories.


Up to 5 working days.


£7.50 (ex VAT) for mainland UK deliveries.

£18.70 (ex VAT) for Northern Ireland.

Other postcode areas - POA.

Free delivery is offered on orders over £150 + VAT to UK mainland postcodes only.

You can view our detailed delivery charges and services here.