The products offer by us are engineered under the supervision of of industry experts, which make use of quality grade raw material and brass in manufacturing. Finish in Fasteners: Tin Plated Nickel Plated Electro Polished Buff Natural Brass Chrome Plated Material: Free Cutting Brass IS 319 Type (I) or Free Cutting Brass As Per BS 249 Type (I) or High Grade Free Cutting Brass Any Special Brass Material Composition As Per Customers Requirement. Threads: ISO Metric (MM Threads) BA Threads BSW Threads (inches) UNC & UNF Threads Any threads as per custom design.