Threaded rod is available in metric grades as well. The International Organization for Standards (ISO) classification R898 includes low and medium carbon steel quenched and tempered class 4.6 and class 5.8, threaded rod similar to U.S. Grades 2 and 5. Class 8.8 and10.9 are classified as alloy steel quenched and tempered and are similar to U.S. Grades 8 and B7. Stainless steel threaded rod is also available in A2 and A4 stainless steel, which are the same as U.S. 304 and 316 stainless steels respectively. Metric threaded rods are marked on the rod tips with a color code. Class 4.6 is unmarked, class 8.8 is yellow, A2 stainless is green and A4 is red.
All thread rods are used in many different construction applications. The rods can be installed in existing concrete slabs and used as epoxy anchors. Short studs can be used coupled to another fastener to extend its length. All thread rods can also be used as fast alternatives to anchor rods, used for pipe flange connections, and used as double arming bolts in the pole line industry. There are many other construction applications in which all thread rod or fully threaded studs are used. Threaded Rods are widely used in HVAC Fittings, Downceiling, Air Conditioning Fittings and Solar Fittings etc.
All thread rod is commonly available in plain steel, hot-dip galvanized, Yellow Zinc and zinc plated. Plain finish all thread rod is often referred to as "black" and it is raw, uncoated steel. Kapson thread rods that will be exposed to the outside elements may need to be hot-dip galvanized to prevent corrosion. Zinc plating can also be used as a corrosion-resistant coating, though a hot-dip galvanized coating will provide greater corrosion-resistance. Zinc plating is commonly used for aesthetic purposes since it can be plated in multiple colors and provides a consistent and shiny coating. For other types of coating as per client's requirements.
Finish: Plain, Zinc, Hot dipped galvanized and Yellow
ASTM: ASTM A307 & A193 Grade B7, A193 Grade B8
DIN: DIN975, DIN976
Stainless Steel: 18-8: 304 and 316
Grade: 4.8 , 6.8, 8.8 & 10.9
Rolled Threads: UNC , UNF , MM & BSW, Single & Double Side Thread, Metric, Trapezoidal and ACME
Diameters: M6 to M64, 6mm, 8mm, 10mm, 12mm
Length: 1Mtr. To 3Mtrs. & 1feet to 12feet