Threading Inserts PG DIN 40430 ; 1971 B B A A PG NUT R0.107P 80° L L R0.107P PG SCREW I.C. I.C. INTERNAL EXTERNAL EXTERNAL PITCH DIMENSIONS CATALOG NUMBER SIZE RIGHT HAND L TPI I.C. A B mm 20 PG7 PG20 ER11 1.3 0.8 18 PG 9, PG 11, PG 13.5, PG16 PG18 ER11 11 6.35 0.8 0.9 16 PG21, PG29, PG36, PG42, PG48 PG16 ER11 1.0 1.1 20 PG7 PG20 ER16 0.8 0.8 18 PG 9, PG 11, PG 13.5, PG16 PG18 ER16 16 9.525 0.9 1.0 16 PG21, PG29, PG36, PG42, PG48 PG16 ER16 0.9 1.1 INTERNAL PITCH DIMENSIONS CATALOG NUMBER SIZE RIGHT HAND L TPI mm I.C. A B 20 PG7 PG20 IR11 1.3 0.8 11 6.35 18 PG 9, PG 11, PG 13.5, PG16 PG18 IR11 0.8 0.9 20 PG7 PG20 IR16 0.8 0.8 18 PG 9, PG 11, PG 13.5, PG16 PG18 IR16 16 9.525 0.8 1.0 16 PG21, PG29, PG36, PG42, PG48 PG16 IR16 0.9 1.1 25