Threading Inserts TRAPEZ EXTERNAL DIN 103:1977 ISO 2901:1993 A B TR NUT 30° I.C. L TR SCREW PITCH CATALOG NUMBER DIMENSIONS MM RIGHT HAND LEFT HAND Lmm I.C. A B 1.5 TR 1.5 ER11 TR 1.5 EL11 11 6.35 0.8 0.8 1.5 TR 1.5 ER16 TR 1.5 EL16 1.0 1.1 2.0 TR 2.0 ER16 TR 2.0 EL16 16 9.525 1.1 1.3 3.0 TR 3.0 ER16 TR 3.0 EL16 1.3 1.5 4.0 TR 4.0 ER22 TR 4.0 EL22 1.7 1.9 22 12.70 5.0 TR 5.0 ER22 TR 5.0 EL22 2.1 2.4 6.0 TR 6.0 ER27 TR 6.0 EL27 2.3 2.6 27 15.875 7.0 TR 7.0 ER27 TR 7.0 EL27 2.1 2.5 SEMI FULL PROFILE THREAD Semi full profile inserts style completes the thread form and breaks the corners of outside thread diameter, used for INSERT Trapezoidal threading inserts. 32