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Application

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.

Description

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.

General information
Material

Grade 1.4301 (304) stainless steel

Uniclass 2015
Pr_20_29_76_76 Self-drilling screwsPrimary
Specification data - Self-drilling screws
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

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.

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