Specification IS 1367/1366 BS 4183 BS 3643 BS 57 BS 93 DIN 660, 84, 85, 7985a, 7985 Z1, etc. Material [I] Method : Cut Thread or Turning Free Cutting Brass IS 319 Type I or BS 249 Type I. Any Special Non Ferrous Material Grade. Brass as per RoHS Directive. [II] Method : Roll Thread or Cold Forged Brass as per IS 4413 Brass as per BS 2874 OR CZ 108 High Grade Mild Steel in case of M.S. Threads ISO Metric (MM Threads) BA, BSW (Inches), UNC, UNF Any as per customize Specification Size Apart form standard Screw, we develop customize Screw as per technical drawing or other relevant data. Finish Natural Nickle Plated Silver Plated Zinc Plated Tin Plated As per customer Specification