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DrillFastĀ® A4/316 Specialist 'Thick to Thin' Clamping Fastener

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Fixfast Ltd

Specialist stitching fastener designed for fastening components to thin sheet metal.

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+44 (0)1732 882387 Website

Application

For fixing brackets, top-hats and other components to thin steel sheeting (e.g. composite panel skin) within roofing and cladding systems.

Description

The DF3-SSA4-LS fastener has a specially designed drill point and thread geometry for fixing to thin steel sheet. The conical bonded washer achieves a sealed connection on various application depths.


Features and benefits:

  • A4/316 grade stainless steel (1.4401).
  • Free-spin zone to prevent unwinding.
  • High pull-out performance from thin steel sheet.
  • Supplied pre-assembled with an aluminium-backed ethylene-propylene diene monomer (EPDM) sealing washer (19 mm diameter).

General information

Color

Silver

Other

Manufacturer guidance

Either mill finish or powder-coated to bespoke project colours.

Finish

Coated

Mill

Powder-coated

Material

Stainless steel

EPDM

Length

28 mm

Width

6.3 mm

Warranty description

40 year

Guidance for specification option:

Up to 40 years, consult manufacturer for details.

Dependent on environment.

Uniclass

Pr_20_29_76_76 Self-drilling screwsPrimary

CAWS

H31/10 Metal

H31/120 Metal

Specification data - Self-drilling screws

Material

Stainless steel.

Finish

Powder-coated (organic).

Guidance for specification option:

To bespoke project colours. Consult manufacturer and insert requirements.

Mill.

Head type

Hexagonal with EPDM washer.

Guidance for specification option:

Head: 8 mm.

Size

-

Diameter

6.3 mm.

Length

28 mm.

Washers

Aluminium/ EPDM.

Guidance for specification option:

19 mm-diameter. AC19.

Execution

-

Manufacturer guidance

See manufacturer's literature for full installation and handling details.

Drilling capacity

Steel sheets, up to 3 mm-thick.

Resistance

0.7 mm steel: 1.58 kN.

Guidance for specification option:

Fastener pull-out performance.

Sustainability data

Material

Stainless steel

EPDM