The diameters are designed to adapt specifically to the different materials used in the footwear sector. We are therefore with the diameter 1.75 which is the top of the range for use on very hard components such as beech: the spiked tip allows you to penetrate safely reducing the risk of creating breakage veins to zero. The 2.4 / 6 diameter is used on pre-drilled beech. The diameter 3 - 3.5 on the other hand is the non plus ultra on polyurethane beach shoes.
The type of combined head gives the opportunity to use both the Phillips screwdriver and the slotted screwdriver for unscrewing. This type of screw is also chosen so that a different aesthetic is offered to the market.
VITI ANTISTRAPPO 2.4/6X17 TFU FR COMBI POZI ZINCATE Cr.3
VITI ANTISTRAPPO 2.4/6X21 TFU FR COMBI POZI ZINCATE Cr.3
VITI ANTISTRAPPO 3X20 TFU FR COMBI POZI ZINCATE Cr.3
VITI ANTISTRAPPO 3.5X21 TFU FR COMBI POZI ZINCATE Cr.3