Customized Galvanized Zinc Plate Steel Wire Ball Point Pen Spring Small Ballpoint Pen Compression Spring Pressure Springs, Wire Diameter 0.4mm * Out Diameter 4.5mm * Length 18mm, 100PCS
4.Size:0.016“ Inch Wire *0.18" Inch Out Diameter*0.7" Inch Lenngth*20 Coils
Description
Ballpoint Pen Spring Wire diameter : 0.016" Inch Out diameter : 0.18" Inch Inner diameter:0.15" Inch Length : 0.7" Inch Turns Number:20 Coils Material : galvanized steel