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Star Drive Bits for GRK Screws

(exc VAT) £0.82 (inc VAT) £0.98

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(exc VAT) £0.82 (inc VAT) £0.98


Star Drive Bit a perfect match for GRK Screws

At a glance

  • Innovative star-head on all GRK screws increases the holding power of the star-drive bit
  • Four drive bit sizes available
  • 25mm length
  • Made from hardened stainless steel

Innovative star-head suitable for all GRK screws

Please note that we supply 1 Star Drive Bit free of charge for every 1000 screws ordered, you can however purchase additional individual bits if required. You can do this by adding them to your basket above.

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.

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.

Read more

Please see below for details on choosing the correct Star Drive

T10 Star Drive Bits

Length: 25mm

Colour: Yellow

Fits the following screw head recess:

  • R4™ Multi Purpose Screw - 3.0 (#4) gauge

  • FIN/Trim™ Head Screw - 4.0 (#8) gauge

  • RT Composite™ Trim™ Head Screw - 4.0 (#8) gauge


T15 Star Drive Bits

Length: 25mm

Colour: Red

Fits the following screw head recess:

  • R4™ Multi Purpose Screw - 3.5 (#6), 4.0 (#8) gauge

  • FIN/Trim™ Head Screw - 4.5 (#9) gauge

  • RT Composite™ Trim™ Head Screw - 4.5 (#9) gauge


T25 Star Drive Bits

Length: 25mm

Colour: Green

Fits the following screw head recess:

  • R4™ Multi Purpose Screw - 4.5 (#9), 5.0 (#10), 6.0 (#12) gauge


T30 Star Drive Bits

Length: 25mm

Colour: Black

Fits the following screw head recess:

  • RSS™ Rugged Structural Screw - 7.0 (5/16) gauge

  • FSC
  • PEFC
  • Trada member
  • Responsible purchaser
  • Cedar Shake & Shingle Bureau
  • nbs plus
  • Secured by