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GEFU® thread-rolling screw With flat head and hexalobular drive (Txplus), serrated
GEFU<SUP>®</SUP> thread-rolling screw With flat head and hexalobular drive (Txplus), serrated - 1
GEFU<SUP>®</SUP> thread-rolling screw With flat head and hexalobular drive (Txplus), serrated - 2
GEFU<SUP>®</SUP> thread-rolling screw With flat head and hexalobular drive (Txplus), serrated - 3

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GEFU® thread-rolling screw With flat head and hexalobular drive (Txplus), serrated

DIN 7500-1, case-hardened (-O-) zinc-plated steel, blue passivated (A2K) without anti-friction coating

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For a secure connection in thin sheet metal (up to approx. 520 N/mm²):


  • Thread-cutting zone for forming rim holes

  • Special round under-head geometry for high tightening and overturning torques

  • Play-free and self-locking thread seating => Reduced likelihood of screw working loose => Protection against loss

  • Toothing under the head for increased breakaway torque
Notice

The suitability of the GEFU for the application or component in question must be determined by preliminary testing!

Application area

1. Apply


2. Thread tapping and creation of eyelet in sheet metal


3. Tighten

Pre-hole diameter recommendations:
Nominal diameterSheet thickness mmPre-hole diameter mmTightening torque Nm
M40,52,62
0,62,92,7
0,853,13,2