elf-tapping screws, B-thread, heavy section steel
Self-tapping screws for
pre-drilled holes. Flexible sealing washer. For steel beams, 4-25 mm, type B.
8 mm sleeve.
Self-tapping screws for
pre-drilled holes. Flexible sealing washer. For steel beams, 4-25 mm, type B.
8 mm sleeve.