FEX-H, partial thread, flat countersunk head, cross recess Z, 4CUT, WIROX

  • Application: Fastening fittings to wooden window frames
  • Increased corrosion protection thanks to special surface WIROX A3J
  • Reduces projection even if the screw is inserted askew
  • Reduces the splitting effect in wood

Special features

Cross recess Z

Flat countersunk head with restraining ribs

Bevelled head flanks and restraining ribs under the head.

Ground serrations

For quick and secure fastening.

4CUT point

No pre-drilling (wood-dependent), its point effectively reduces the splitting effect. The square end pushes aside the fibre of the wood and reduces the screwing-in torque.

WIROX A9J

WIROX surface with high protection against corrosion, it is free from chromium-VI, and is hence considerably more environmentally friendly than conventional surfaces.

Certificates

SKH

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SPAX product catalogue compact 2019

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