- n° 32 Screws UNI 5739 M27X120 SA193B7 zinc plated - n° 32 Nuts UNI 5587 M27 IN ASTM A194 Gr. 2H zinc plated - n° 32 Flat washers UNI 6592 M27 zinc plated. - n° 48 Screws UNI 5739 M12X55 SA193B7 zinc plated - n° 48 Nuts UNI 5587 M12 IN ASTM A194 Gr.2H zinc plated. - n° 48 Flat washers UNI 6592 M12 zinc plated. - n° 32 Screws TE UNI 5739 M18X70 SA193B7 zinc plated - n° 32 Nuts UNI 5587 M18 IN ASTM A194 Gr. 2H zinc plated. - n° 32 Flat washers UNI 6592 6S zinc plated Certificates 3.1 ( B7/2H )