Drillfast Stainless SFW


Pre-assembled A2 stainless fastener with ultra-low-profile head system for fastening flat composite panel. Installation is only one step, giving a finish so close to the surface that other layers in the system can be laid over the top with no further preparation. There is no need for pre-drilling or cutting holes in the panel. Purpose-designed for the controlled environment industry, but also ideal for any flat panel system. The SFW fastener has a fusion-welded carbon steel point for quick and easy drilling and once installed the entire fastened length is stainless and inherently corrosion resistant.


  • Unique sealing washer system.
  • Wide range of lengths.
  • Genuine A2/304 stainless steel for durability.
  • Pan head and washer design creates ultralow profile finish.


  • One step installation with no cutting or drilling
  • Flat finish ready for further installation on top of the panel.
  • Stringent batch control – Consistently high performance from batch to batch.
  • Optimized thread design – Enhanced pull-out performance and smoother tapping.
  • Optimized hardness – Eliminates failures.
  • Unique drill point geometry – Drills quickly and cleanly.

General information


Unique sealing washer system

Wide range of lengths

Genuine A2/304 stainless steel for durability

Pan head and washer design creates ultralow profile finish

Uniclass 2015

Pr_20_29_71_77 Semi-tubular rivetsPrimary


G30/280 Attachment of decking

H31/10 Metal

H31/110 Metal

H31/120 Metal

H31/160 Profiled plastics sheet

H31/240 Lining

H31/241 Lining

H31/30 Profiled plastic sheet rooflights

H31/40 Lining

Specification data - Semi-tubular rivets

Product Reference



105 mm

Build-up: 50–82 mm.

130 mm

Build-up: 82–107 mm.

155 mm

Build-up: 107–137 mm.

180 mm

Build-up: 132–157 mm.

230 mm

Build-up: 136–198 mm.

Standard product features

Drilling capacity into steel:

1.2–3.0 mm.

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