Threading Inserts PARTIAL PROFILE 55° EXTERNAL 55 NUT A L BA 55° I.C. L 55 SCREW B T I.C. VERTICAL STANDARD STANDARD PITCH RANGE CATALOG NUMBER DIMENSIONS MM TPI RIGHT HAND LEFT HAND Lmm I.C. A B 0.5-1.5 48-16 A55 ER11 A55 EL11 11 6.35 0.8 0.9 0.5-1.5 48-16 A55 ER16 A55 EL16 0.8 0.9 1.75-3.0 14-8 G55 ER16 G55 EL16 16 9.525 1.2 1.7 0.5-3.0 48-8 AG55 ER16 AG55 EL16 1.2 1.7 3.5-5.0 7-5 N55 ER22 N55 EL22 22 12.70 1.7 2.5 5.5-6.0 4.5-4 Q55 ER27 Q55 EL27 27 15.875 2.1 3.0 VERTICAL INSERTS PITCH RANGE CATALOG NUMBER DIMENSIONS MM TPI RIGHT HAND Lmm I.C. A B T 0.5-1.5 48-16 A55 ER16V 1.1 1.0 3.7 1.75-3.0 14-8 G55 ER16V 16 9.525 1.1 1.7 3.7 0.5-3.0 48-8 AG55 ER16V 1.1 1.7 3.7 4