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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Features

MaterialStainless steel A4
SurfaceBare
FormC
Nominal diameter (d1)3.5 mm
Length (l1)16 mm
Head diameter (dk)6.9 mm
Head height (k1)2.6 mm
Internal driveH2
DIN7981
Head typePan head
Declaration of performance (EU-CPR)No
StandardsDIN 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.