Worm screw shaft 1 Widely used in many devices 2 Outer diameter: ... .5 to 1250mms 3 Length: 0.5 to 1300mms Worm screw shaft1.Material: C36042.Product standard: ¢10*75mm3.Product features: side ... treatment:: kinds of plating (Zinc, Nikel, Chrome, Tin, Ag); Painting, Powder, Anodizing, E-coating, Silkscreen, Heat treatment, Black oxid; 5.Production ...