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S-MD 43 S Self-drilling metal screws

Self-drill screw S-MD43S 5,5x25 #414297

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Technical Data
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r2971

Self-drilling screw (A2 stainless steel) with 14 mm washer for medium-thick metal-to-metal fastenings (up to 6 mm)

  • Screw drive/recess type: Hexagon 8
  • Washer size: 14 mm
  • Base materials: Carbon steel, Aluminium

Customers also searched for 304 stainless.

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Thickness fastened range MF
  • 1.2 - 7 mm
Drilling capacity range DC
  • 2.6 - 6 mm
Length
  • 25 mm
Pack size
  • 500 pc
 Product options
Quantity
Packs
Total Pieces
500
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Discounted net
HKD 3,186.77
HKD 6.37 / 1 Piece

Technical Data

Screw drive/recess type
Hexagon 8
Washer size
14 mm
Base materials
Carbon steel, Aluminium
Environmental conditions
Dry indoor, Indoor with temporary condensation, Outdoor with low pollution, Outdoor with moderate concentration of pollution
Screw diameter d
5.5 mm
Length
25 mm
Screw head diameter
10 mm
Washer type
Bonded EPDM

Documents

Approval document
Reference document
Technical information
Submittal
Sustainability Documentation
Operating Instruction
pdf DIBt Zulassung Z-14.4-769 für Fassadenschrauben S-MD, S-AD, S-MP, S-PD und S-PS, German, English [ 13.3 MB ]
pdf ETA-18/0880_for_SM_screws_2024-04-11_en, German [ 4.4 MB ]
pdf ETA-18/0880_for_SM_screws_2024-04-11_en, English [ 4.4 MB ]

Features & Applications

Features

  • Self-drilling screw for fast assembly in one step
  • Perfect Sealing (PS) feature – specially engineered geometry below the head which prevents over-compression of the EPDM washer, helping to reliably seal out water
  • Fast and robust drill tip with Racing Tip technology – a wave-form cutting edge which removes chips much faster and helps prevents point burn-out
  • For reliable fastenings with defined load values
  • Attractive final appearance – screw head can be coloured to match the façade

Applications

  • Fastening sheet metal and profiles to steel substructures and framing, with or without intermediate insulation layers
  • Stainless steel (A2) for fastening in mildly corrosive environments
  • Thin to medium-thick metal-to-metal connections (up to 6 mm)
  • Watertight fastenings – 14 mm washer included
  • Fastening aluminium to aluminium substructures and fastening corrugated metal sheets to liner trays
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