Raised countersunk head screw - 4.5x80mm Heco The HECO-UNIX with variable thread pitch. For... more

Raised countersunk head screw - 4.5x80mm
Heco

The HECO-UNIX with variable thread pitch. For quick and gap-free assembly of wooden components.
HECO-UNIX the full thread screw with the contraction effect in the HECO-UNIX-plus and HECO-UNIX-top versions.
The HECO-UNIX has a full thread with variable pitch.
This decreases steadily in the middle area and is smaller in the rear thread area than in the tip area of the screw.