1- BSW (British Standard Whitworth) – Coarse threads 2- Metric Threads – Fine threads in mm. 3- B.A. Series (British Association) – Semi Fine in Inches. 4- U.N.F. Series – Unified National Fine. 5- U.N.C. Series – Unified National Coarse. These Machine Screws are manufactured in Stainless steel, Brass, Alloy Steel, Mild steel & other ferrous/non-ferrous metals by us.
These threads are used in assemblies with thread insert or nuts provided. We manufacture machine screws in following classifications of thread:
