Standard Specification

BS 4183
BS 93
BS 3643
IS 1367 / 1366
BS 57

Threads

Iso metric (MM Threads)
BA
BSW (Inches)
UNC
UNF
As per customer specifications

Material

Machine Turned Brass Screws
Free cutting Brass IS 319 type (I) or
BS 249 type (I) or
High Grade Cold Forged Machine Screws Brass as per IS 4413 or BS 2874 / Cz 108 or
High Grade Mild Steel in case Cold Forged MS Screws

Finish

Natural
Nickel plated
Tin plated
any other coating as per customer’s requirements.