Brass Round Head Screws Sizes :- Brass Round Head Screws, Brass Round Machine Screws, Brass Metric Screws, Brass Round Head Screws, From 1mm to 6 mm in thread size and up to 60 mm in length BSW sizes as well. We also manufacture as per your requirements Brass CSK Head Screws Standard: - As per I.S. & Din Sizes : - Brass CSK Head Countersunk Head Screws Machine Screws From 1 mm to 6mm in thread size and up to 60 mm in length ready in stock. We also manufacture as per your requirements from 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12, M3, M4, M5, M6, M8, M10, M12, 1/8, 5/32, 3/16, 1/4, 5/16, 3/8, 1/2 mm in thread size and up to 100 mm in length. Threads: BSW, BA, UNC, Metric, UNEF, UNF, MM, inches