Threading Inserts STUB ACME EXTERNAL ASME/ANSI B 1.8-1988 A B STACME NUT 29° I.C. L STACME SCREW PITCH CATALOG NUMBER DIMENSIONS TPI RIGHT HAND LEFT HAND L mm I.C. A B 16 STACME 16 ER11 STACME 16 EL11 11 6.35 1.0 1.1 16 STACME 16 ER16 STACME 16 EL16 1.0 1.1 14 STACME 14 ER16 STACME 14 EL16 1.0 1.2 12 STACME 12 ER16 STACME 12 EL16 1.1 1.2 10 STACME 10 ER16 STACME 10 EL16 16 9.525 1.2 1.4 8 STACME 8 ER16 STACME 8 EL16 1.4 1.5 6 STACME 6 ER16 STACME 6 EL16 1.7 1.8 6 STACME 6 ER22 STACME 6 EL22 1.8 2.1 5 STACME 5 ER22 STACME 5 EL22 22 12.70 2.1 2.3 4 STACME 4 ER22 STACME 4 EL22 2.3 2.3 4 STACME 4ER27 STACME 4 EL27 2.4 2.5 27 15.875 3 STACME 3 ER27 STACME 3 EL27 2.7 2.8 36