Stainless steel chains and screw lock carabiners for barriers, safety devices, and connections—made entirely of corrosion-resistant V4A stainless steel (AISI 316 (1.4401/1.4404). Round steel chains conforming to DIN 766 (short-link) and DIN 763 (long-link) in diameters from Ø 4 to 10 mm, sold by the meter, along with matching screw lock carabiners in short and long versions for securely connecting chains and cables.