PRODUCT SPECIFICATIONSteel Bar Coupler"Coupler Size""OD?mm???.5mm""LengthL?(mm)""Thread Pitch ?mm)""Thread Angle""MaterialCarbon Steel""Weight?kg/pcs?"?121932M12*1.75P60?45#0.036?142440M14.5*2.5P60?75?45#0.068?162440 M16.5*2.5P60?75?45#0.099?182745 M18.5*2.5P60?75?45#0.125?202950 M20.5*2.5P60?75?45#0.18?223355 M22.5*2.560?75?45#0.205?253760 M25.8*3.0P60?75?45#0.317?284165 M28.8*3.0P60?75?45#0.399?324772 M32.8*3.0P60?75?45#0.64?365483 M36.7*3.5P60?75?45#0.9?405988 M40.4*3.5P60?75?45#1.099?5074125M50*3.5P60?75?45#1.298