Wurth Pan Head Tapping Screw Shape C w/ H Recessed Head A4 – M3

Article No. 1253516
DIN 7981 stainless steel A4 pan head H form C A4-PAN-HD-S/TAPPING-SCREWS-DIN7981-M3,5X16
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  • 13mm 13mm
  • 16mm 16mm
  • 19mm 19mm
  • 25mm 25mm
  • 32mm 32mm
  • 38mm 38mm
  • 50mm 50mm
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Features

Material Stainless steel A4
Surface Bare
Form C
Nominal diameter (d1) 3.5 mm
Length (l1) 16 mm
Head diameter (dk) 6.9 mm
Head height (k1) 2.6 mm
Internal drive H2
DIN 7981
Head type Pan head
Declaration of performance (EU-CPR) No
Standards DIN 7981

Specifications

DIN 7981 A4 stainless steel, shape C, pointed
  • Tapping screws belong to the thread-moulding screw family. When screwed into a pre-prepared core hole, these screws shape their own counter-thread.
  • Guideline values for selecting the correct core hole diameter are contained in DIN 7975.
  • Shape C = thread with tip
  • Shape F = thread without tip
  • Shape R = thread with rounded tip

Notice

Self-tapping screws made from stainless steels are softer than those made from case-hardening steel. These screws are therefore not able to form a counter thread in steel plates. For this reason, they should only be used in soft materials, such as aluminium.

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