Grade Grade ISO-threading (internal) UN-threading (internal) NPT-threading HARDWARE 60° P 60° P 60° P 1:16 hardware desc 1 hardware desc 3 hardware desc 4 hardware desc 5 hardware desc 6 hardware desc 7 6.3 6.3 6.3 12 2.9 12 2.9 12 2.9 NPTF-threading BSPT-threading W-threading 60° P 1:16 55° P 1:16 55° P 6.3 6.3 6.3 12 2.9 12 2.9 12 2.9 Designation Pitch IN1030 IN2030 Designation Pitch IN1030 IN2030 ISO-threading (internal) LYEU12180UN 18 LYEU12050IS 0.5 LYEU12160UN 16 LYEU12075IS 0.75 NPT-threading LYEU12100IS 1 LYEU12180NT 18 LYEU12125IS 1.25 NPTF-threading LYEU12150IS 1.5 LYEU12180NF 18 UN-threading (internal) BSPT-threading LYEU12320UN 32 LYEU12190BT 19 LYEU12280UN 28 W-threading LYEU12240UN 24 LYEU12190BW 19 LYEU12200UN 20 =P =M =K =N =S =H HARDWARE Driver Screw DS-T08W IS12 559