028


UNI 6949/B - DIN 7976/F - ISO 1479

SELF TAPPING SCREWS IND HEXAGONAL HEAD TYPE B



Self-tapping screws are mainly used for screwing on metal sheets and laminates through simple drilling, without threading or tapping operations. These screws are not particularly suitable for use on die-cast materials and plastic materials. For a safe and stable screwing, particular attention must be paid to the diameter of the hole to be drilled. A small hole in which the screw "forces" to enter is certainly not synonymous with greater guarantee in fixing. It should also be remembered that the existing tables are empirical and only give an indication of perforation, but they are not a certain rule, as the fixing must be checked from time to time according to the technical-mechanical conditions of the particular that will be tighten.

Self-tapping screws without a tip find particular application in pass-through positions, where the screw protrudes from the fixed plates and you want to avoid the risk of accidental injuries caused by the tip coming out. They are therefore of an accident prevention nature as they reduce the possibility of accidental cuts with the tip even during various maintenance operations.

Compared to the cross recess, the hexagonal head guarantees the possibility of applying a higher tightening torque without the risk of the insert coming out. It is particularly suitable for diameters from 4.8 upwards.

The length of the screw is measured from the tip to the underhead.



Code Description Availability Certifications Request offer
028.29065ZN VITI AUTOFILETTANTI 2.9X6.5 TE S. PUNTA ZINCATE Cr.3 156300.0
028.35095ZN VITI AUTOFILETTANTI 3.5X9.5 TE S. PUNTA ZINCATE Cr.3 59800.0
028.42190ZN VITI AUTOFILETTANTI 4.2X 19 TE S. PUNTA ZINCATE Cr.3 36940.0
028.42220ZN VITI AUTOFILETTANTI 4.2x 22 TE S. PUNTA ZINCATE Cr.3 50000.0
028.48095ZN VITI AUTOFILETTANTI 4.8X9.5 TE S. PUNTA ZINCATE Cr.3 159600.0
028.48250ZN VITI AUTOFILETTANTI 4.8X25 TE S. PUNTA ZINCATE Cr.3 0.0
028.55160LT VITI AUTOFILETTANTI 5.5X 16 TE S. PUNTA LANTHANE + FINIGARD 24800.0
028.63130LT VITI AUTOFILETTANTI 6.3X 13 TE S. PUNTA LANTHANE + FINIGARD 0.0
028.63160ZN VITI AUTOFILETTANTI 6.3X 16 TE S. PUNTA ZINCATE Cr.3 81400.0
028.63320LT VITI AUTOFILETTANTI 6.3X 32 TE S. PUNTA LANTHANE 7M + FINIGARD 0.0
028.63320ZN VITI AUTOFILETTANTI 6.3X 32 TE S. PUNTA ZINCATE Cr.3 0.0
028.63380LT VITI AUTOFILETTANTI 6.3X 38 TE S. PUNTA LANTHANE 0.0