Niedax B 4.2X13-TX V with TX20 steel galvanized lens head drilling screw

Lens head drilling screw with TX20 similar to DIN EN ISO 15481, drill tip made of case hardened steel, hardened, with self-tapping screw thread, for attaching the cladding to the gutter spacer bracket/support and for fixing the walkable cable trays to the gutter spacer bracket/support/floor support. Use for: cladding VBASB... to gutter spacer bracket RDB 85. .../support RSSTAU 108. ..., walkable cable trays to spacer bracket RDB 85. .../support RSSTAU 108. .../floor support RSSBP ... Dimensions (approx. dimensions) Nominal Ø of self-tapping screw thread: 4.2 mm Length L: 13 mm Material: steel, galvanized DIN EN ISO 2081 / 4042, blue passivated