... non-standard fastener supply 2.ROHS is capable 3.Grade:4.8 ,6.8,8.8,9.8... ..... Copper MACHINE SCREW, brass ... shoulder bolt screw ,BRASS ALLEN SCREW. A good non-standard fastenerS manufacturer for your ... ,202,302,304,316...copper is shiny brass , pure copper,such as H62,H65 ... products,Hexavalent chromium are accord with ROHS Standard.Weight and Measurment 1)Quantity in ...