Ultra Tech Industries stocks finished hex nuts in Gr.2 zinc, Gr.5 zinc, Gr.8 yellow zinc, 18-8 stainless steel, jam nuts, ASTM A194 Gr.2H in zinc and plain, A563 heavy hex nuts zinc, top lock nut (Stover), nylon insert lock nuts (Nylocks). Sizes vary from from #0 up to 1.50 in fine and coarse thread. We make parts to print parts from #0 up to 6 in over 18 materials, including; 18-8 stainless steel, 304 stainless steel, 316 stainless steel , silicon bronze, brass, Monel, titanium, aluminum, nylon. Products are available in American Standard and Metric sizes. Nuts and locknuts available in many types of plating including; zinc, zinc yellow, black oxide, nickel, galvanized, Xylan and Teflon. Domestic and import available. Used in military & defense, aerospace, transportation, oil & gas industries, steam, wind, solar and all power & energy generation utilities, marine construction, steel fabrication, highway construction, ship building, mining, construction industries and more. Nuts Available Locknuts Available Materials Available Finishes AvailableAcorn Cap T-Nut Flange Alloy Black OxideCastle T-Slot Toggle Flex lock Aluminum Bright NickelCoupling U-Clip Grade C Brass CadmiumExpansion Weld Keps Bronze ChromeFinished Hex Wheel Metric Carpenter 20 Clear ChromateFlanged Wing Nylon Insert Copper DacrometHeavy Hex Custom - Made to Print Self Retaining Exotic Metals DichromateJam Serrated Flange Hastelloy GeometKeps Speed Inconel Hot-Dip GalvanizedMachine Screw Stover Malleable Iron Magni-GuardMetric Top Lock Monel PassivatedNylon Insert Tri-Lock Naval Brass PhosphatePanel Two Way Reversible Nylon TeflonSlotted Unitorque Plastic Trivalent ZincsSpecial Pith Silicon Bronze ZincSpring Stainless Steel Square SteelStrut Titanium