Screw for fixing furniture backrests, normally made of extremely soft materials (soft plywood or millboard).
LARGE FLATED HEAD
which avoids the ‘wedge effect’, caused by countersunk head screws. The broad section under the head also ensures a high tear resistance of the backrest.
threaded right to the end to penetrate into the material, deforming it gradually without causing any splits and avoid damaging the laminated finishing layer.
More info: demo video
CARBONITRIDING HEAT TREATMENT
More info: heat treatment
The 100hrs white zinc plating treatment guarantees a rust resistance a third higher than that of standard galvanizing. Complies with the EN1670 standard grade 3.
More info: finishing treatments
More info: Lubex® lubrication