Threading Inserts ISO METRIC EXTERNAL ISO 965-1:1999-11 DIN13 : 2005-08 B A ISO NUT 1/4P 60° L 1/8P ISO SCREW I.C. PITCH CATALOG NUMBER DIMENSIONS MM RIGHT HAND LEFT HAND Lmm I.C. A B 0.75 ISO 0.75 ER16 ISO 0.75 EL16 0.6 0.6 0.8 ISO 0.8 ER16 ISO 0.8 EL16 0.6 0.6 1.0 ISO 1.0 ER16 ISO 1.0 EL16 0.7 0.7 1.25 ISO 1.25 ER16 ISO 1.25 EL16 0.8 0.9 1.5 ISO 1.5 ER16 ISO 1.5 EL16 16 9.525 0.8 1.0 1.75 ISO 1.75 ER16 ISO 1.75 EL16 0.9 1.2 2.0 ISO 2.0 ER16 ISO 2.0 EL16 1.0 1.3 2.5 ISO 2.5 ER16 ISO 2.5 EL16 1.1 1.5 3.0 ISO 3.0 ER16 ISO 3.0 EL16 1.2 1.5 3.5 ISO 3.5 ER22 ISO 3.5 EL22 1.6 2.3 4.0 ISO 4.0 ER22 ISO 4.0 EL22 1.6 2.3 22 12.70 4.5 ISO 4.5 ER22 ISO 4.5 EL22 1.7 2.4 5.0 ISO 5.0 ER22 ISO 5.0 EL22 1.7 2.5 5.5 ISO 5.5 ER27 ISO 5.5 EL27 1.8 2.6 27 15.875 6.0 ISO 6.0 ER27 ISO 6.0 EL27 1.9 2.7 7