1:material:steel ,stainless steel 2:sizes:M2~M12;4#40~10#32 3:Finish:zinc,none 4:Suitable for electronic, Chassis,Cabinet Model:PEM,PSM NUT -1:used in the electrical equipment and others;2:can according to customer requirement to design it ;3:finished surface:plain,nickle,black zinc,blue zinc;4:we can produce a kinds of PEM standard nut ; PSM rourd nut/shaft nut/Nuts/PEM nut/self-clinching pem ...