Any kind of brass bolts can be developed and supplied as per customer requirements. Specification followed : IS 1367 BS 3692 Material : Free cutting Brass is 319 type or BS 249 type Any special Brass Material Composition as per customers requirement hreads : ISO Metric (MM Threads) BA Threads BSW Threads (Inches) UNC, UNF Threads Any threads as per custom design. Size : Specification or as per custom design or requirement.