Brüder Mannesmann's M53230 threaded insert set includes 40 pieces, catering to various metric sizes from M3 to M12. This set is ideal for repairing or creating threads in metalwork and maintenance projects. Designed for durability, it's perfect for both professional engineers and DIY enthusiasts. https://elecena.pl/product/28532522/br-der-mannesmann-m53230-threaded-insert-set-8-sizes-40-piece 2025-04-24 https://elecena.pl/product/28532522/br-der-mannesmann-m53230-threaded-insert-set-8-sizes-40-piece 2026-07-16