EFGDKP - EFG DKT: Screws for high-strength wood joinery hardware.
FEATURES
EFG 841 DKT (with T-drive insert) and EFG 840 DKP (with Pozi-drive insert) are designed for modern wooden windows and doors, where the required performance in terms of mechanical and corrosion resistance is very high.
Slightly convex HEAD: improves aesthetics even if the screw is not inserted straight, greater insert groove depth.
self-drilling PUNTA to avoid pre-drilling even in the hardest wood. Transversal ribs ensure perfect insertion with low torque values.
LONGER THREAD: greater stability and greater tensile strength.
REINFORCED SMOOTH SHAFT: greater grip and greater bending strength.
LONGER, SMOOTH UNDERHEAD.