Forgefix Spectre™ Advance Multi-purpose Wood Screws feature a countersunk, Pozidrive compatible, recessed head. Fully threaded, up to 50mm, with a sawtooth thread, to prevent splitting and reamer to prevent jacking (50mm and above). They are also surface hardened with a quick start type 17 slash point. The screws have a black coated finish for excellent resistance to corrosion. Spectre™ by Forgefix incorporates a long list of advanced screw features, often only found in premium screws, into what we've named advanced multi-purpose wood screws. CE approved for use in load-bearing timber construction. https://elecena.pl/product/29468684/forgefix-spe540bl-spectre-pz-compatible-advance-multi-purpose-screw-5-0x40mm 2025-10-31 https://elecena.pl/product/29468684/forgefix-spe540bl-spectre-pz-compatible-advance-multi-purpose-screw-5-0x40mm 2026-05-05 https://elecena.pl/product/29468684/forgefix-spe540bl-spectre-pz-compatible-advance-multi-purpose-screw-5-0x40mm 2026-07-12 https://elecena.pl/product/29468684/forgefix-spe540bl-spectre-pz-compatible-advance-multi-purpose-screw-5-0x40mm 2026-08-28