Please note :Picture just as a reference.the actual delivered goods shall prevail !
Note : please check the choice carefully !
Type:Trapezoidal nut
Material:Brass
Type 1 :Pitch:1mmLead :1mm (single-head,nut turn one circle,screw forward 1mm)
Type 2 :Pitch:2mmLead :2mm (single-head,nut turn one circle,screw forward 2mm)
Type 3 :Pitch:2mmLead :4mm (double-head,nut turn one circle,screw forward 4mm)
Type 4 :Pitch:2mmLead :8mm (four-head,nut turn one circle,screw forward 8mm)