KSLOK Stainless Steel Tube Fittings are manufactured to provide compatibility and equivalence with Swagelok and parker Alok Fittings. Standard material is Brass & Stainless steel. However our specialization is in exotic alloys such as Monel, Inconel , Hastelloy, Titanium, Duplex, 254 SMO etc. Manufacturing Stainless Steel Tube Fittings is a critical process as it consists of a four piece unit:1) Nuts 2)Body 3) Front Ferrule 4)Back Ferrule.They are assembled to a tube to form a leak free connection.One of major factors of success is fastest delivery in the Industry. We stock 85,000+ fittings and valve parts for instant deliveries. For more details visit Website : http://www.kinnaristeel.com/special-metals/stainless-steel-products/stainless-steel-tube-fittings/