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S-MD 51 S Self-drilling metal screws

Self-drill screw S-MD51S 5,5x25 #378257

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Technical Data
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S-MD

Self-drilling screw (A2 stainless steel) with 16 mm washer for thin metal-to-metal fastenings (up to 2mm)

  • Screw drive/recess type: Hexagon 8
  • Washer size: 16 mm
  • Base materials: Carbon steel, Aluminium
premium

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Thickness fastened range MF
  • 1.2 - 8 mm
Drilling capacity range DC
  • 1.2 - 3 mm
Length
  • 25 mm
Pack size
  • 500 pc
 Product options
Quantity
Packs
Total Pieces
500
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Technical Data

Screw drive/recess type
Hexagon 8
Washer size
16 mm
Base materials
Carbon steel, Aluminium
Environmental Conditions
Dry indoor, Indoor environments with temporary condensation, Outdoor, rural or urban environment with low pollution, Outdoor with moderate concentration of pollution
Screw diameter d
5.5 mm
Length
25 mm
Screw-head diameter
10 mm
Product Class
Premium
Washer type
Bonded EPDM

Documents

Approval document
Reference document
Technical information
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_de, 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
  • Reliable, corrosion-resistant fastenings
  • EPDM rubber washer – creates a more reliable seal against water
  • Fast and robust drill tip
  • For reliable fastenings with defined load values

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 metal-to-metal connections (up to 2 mm)
  • For applications requiring watertight fastenings with 16 mm washer
  • Fastening steel/aluminum to wood substructures
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