Home > Companies > Fixfast Ltd > DrillFast® Dual Purpose Fasteners

Carbon steel self-drilling fasteners for roofing and cladding (0.5–3 mm).

Features and benefits:

  • High quality carbon steel with SAE1022 hardened case.
  • Good drilling and tapping performance.
  • High pull-out and shear performance.
  • Thread is designed for easy drilling into steel purlins.
  • Free-spin design helps to prevent damage arising from over-driving the fastener.
  • Available with powder coating for colour matching.
  • Manufactured in accordance with ISO 9001 and ISO 14001 Quality and Management Systems.

Applications:

  • For mechanically fixing metal sheeting systems to light metal purlins and rails.
  • For mechanically fixing/ stitching two metal sheets up to 1 mm thick together.

For use in the following locations:

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

To be fixed with Fixfast RedDrive.

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

Standard product features

Material:

Steel SAE1022 case, hardened.

Coating:

Multiple layer organic.

Head Type:

Low profile pan, TX25 recess.

Drilling capacity:

0.5–3 mm (steel).

Minimum penetration (light steel purlins and steel sheet):

10 mm (through underside).

Build up:

1–9 mm (dependent on washer use).

Durability class:

  • Interior environments: C1 (25).
  • Semi-interior: 20.
  • Urban C2 (12).
  • Rural: C3.
  • Industrial/ coastal: C4.
  • Marine: C5.

Technical characteristics:

- Characteristic values:

  • Pull out values (axial load resistance, to BS 5427): On 0.5 mm steel: 0.68 kN; on 1.2 mm steel: 1.52 kN; on 2 mm steel: 3.01 kN; on 3 mm steel: 5.42 kN.
  • Pull through values (axial load resistance): 0.5 mm steel with A15 washer: 3.68 kN.
  • Shear values (lateral load resistance): 0.5 mm steel: 1.06 kN.

- Design values:

  • Pull out values (axial load resistance, to BS 5427): On 0.5 mm steel: 0.51 kN; on 1.2 mm steel: 1.14 kN; on 2 mm steel: 2.27 kN; on 3 mm steel: 4.08 kN.
  • Pull through values (axial load resistance): 0.5 mm steel with A15 washer: 2.76 kN.
  • Shear values (lateral load resistance): 0.5 mm steel: 0.80 kN.

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

Options

Product reference:

Consult manufacturer for further details.

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® Carbon Steel Dual Purpose Fasteners for 0.5–3 mm steel, DF3-DP-A10-5.5 x 25]
-
25 x 5.5 mm (l x diameter).
[DrillFast® Carbon Steel Dual Purpose Fasteners for 0.5–3 mm steel, DF3-DP-A15-5.5 x 25]
-
25 x 5.5 mm (l x diameter).
[DrillFast® Carbon Steel Dual Purpose Fasteners for 0.5–3 mm steel, DF3-DP-A19-5.5 x 25]
-
25 x 5.5 mm (l x diameter).

Washer

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

Colour

Polyester powder coated, colour - Insert requirements.

Manufacturer details

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