Home > Companies > Fixfast Ltd > DrillFast® A2/304 Stainless Steel Fasteners for Timber

Stainless steel self-drilling fasteners for roofing and cladding for timber.

Features and benefits:

  • Grade 1.4301 (304), A2 stainless steel is used for optimum resistance to corrosion.
  • The thread formation is designed for efficient driving into timber.
  • Good pull-out and shear performance.
  • Manufactured in accordance with ISO 9001 and ISO 14001 Quality and Management Systems.

Applications:

Suitable for the mechanical fixing of:

  • Metal sheeting systems to timber.
  • Components of steel, aluminium and metal framing systems to timber.

For use in the following locations:

  • Buildings in residential and commercial settings with humidity class of Class 1, Class 2, Class 3 or Class 4 to BS 5250.
  • Buildings with an internal temperature range of -45°C to 50°C.
  • Coastal locations.

To be fixed with Fixfast GreenDrive (8 mm hexagon integral socket with retaining clip).

Fixfast products must be used as a complete system with tools and accessories as recommended - consult manufacturer for details.

Standard product features

Material:

Grade 1.4301 (304) stainless steel.

Coating:

Electro-passivated and waxed.

Head type:

Hexagon, 8 mm.

Drilling capacity:

0.7 mm (sheet steel to timber).

Minimum penetration:

  • 18 mm plywood: 12 mm (through underside).
  • Timber: 35 mm embedment.

Build up:

  • 18 mm plywood (to BS EN 636): 0–2 mm (dependent on washer used).
  • 35 mm timber: 0–65 mm (dependent on washer used).

Durability class:

  • Interior environments: C1 (30).
  • Semi-interior: 25.
  • Urban: C2 (25).
  • Rural: C3 (25).
  • Industrial/ coastal: C4 (15).
  • Marine: C5.

Technical characteristics:

– Characteristic values:

  • Pull out values (axial load resistance, to BS 5427): Softwood 35 mm embedment: 6.36 kN.
  • Pull through values (axial load resistance): 0.5 mm steel with A15 washer: 3.38 kN; on 0.7 mm steel with A15 washer: 4.97 kN.
  • Shear values (lateral load resistance, with A15 washer): Timber: 1.94 kN.

– Design values:

  • Pull out values (axial load resistance, to BS 5427): Softwood 35 mm embedment: 4.78 kN.
  • Pull through values (axial load resistance): 0.5 mm steel with A15 washer: 2.54 kN; on 0.7 mm steel with A15 washer: 3.73 kN.
  • Shear values (lateral load resistance, with A15 washer): Timber: 1.45 kN.

Other figures and specific testing are available on request - consult manufacturer for information.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-50-60/415 Self-drilling or self-tapping screws

Product specification

An important note about specifying

Manufacturer

Name:

Fixfast Ltd

Tel:

+44 (0)1732 882387

Product reference

[DrillFast® A2/304 Stainless Steel Fasteners for Timber, DFT-SS-6.0 x 25]
-
25 x 6 mm (l x diameter).
[DrillFast® A2/304 Stainless Steel Fasteners for Timber, DFT-SS-6.0 x 32]
-
32 x 6 mm (l x diameter).
[DrillFast® A2/304 Stainless Steel Fasteners for Timber, DFT-SS-6.0 x 40]
-
40 x 6 mm (l x diameter).
[DrillFast® A2/304 Stainless Steel Fasteners for Timber, DFT-SS-6.0 x 50]
-
50 x 6 mm (l x diameter).
[DrillFast® A2/304 Stainless Steel Fasteners for Timber, DFT-SS-6.0 x 75]
-
75 x 6 mm (l x diameter).
[DrillFast® A2/304 Stainless Steel Fasteners for Timber, DFT-SS-6.0 x 100]
-
100 x 6 mm (l x diameter).

Washers

[Required]
-
Consult manufacturer for information.
[Not required]

Manufacturer details

Merlin House,
Seven Mile Lane,
Borough Green,
Sevenoaks,
Kent, TN15 8QY
Tel +44 (0)1732 882387
Fax +44 (0)1732 885532
NBS Plus
RIBA CPD