d k S. T. I. GENERAL PURPOSE SCREW THREAD INSERT List S108 HSS BR STI 50˚ Spiral Fluted, Bottom (1.5P-2P) Lc Ln L lk Tap Size Thread No. ofLimitFlutesEDP Number Overall Thread Neck Shank Square SquareBottomLengthLengthLengthDia.WidthLength(1.5P - 2P) Bright L Lc Ln d k lk 2 - 56 UNC 8003000 1.88 0.188 0.574 3 - 48 UNC 24 - 40 UNCH24 - 48 UNF108001008003600108002001.94 0.208 0.625 0.140 0.109 0.1882.000.2510.688 6 - 32 UNC H3 80054008005700 2.38 0.314 0.885 0.194 0.151 0.251 6 - 40 UNF H28 - 32 UNCH3 10800300 2.12 0.755 0.167 0.131800690080072002.380.3110.9400.2200.1640.279 8 - 36 UNF H210 - 24 UNCH310 - 32 UNFH2H3 10800400 0.9378007800800810080087002.500.4171.0000.2550.1900.3118009000 1/4 - 20 UNC H2H3 31/4 - 28 UNFH2H3801090080112008011800 2.72 0.500 1.129 0.317 0.238 0.3388012100 5/16 - 18 UNC H3H45/16 - 24 UNFH2H33/8 - 16 UNCH43/8 - 24 UNFH2H37/16 - 14 UNCH447/16 - 20 UNFH3H438013000801330080136002.930.5551.2510.3800.2850.397801370080154008015700801580080159003.371.9330.3670.2740.4370.6253.151.7120.3220.2420.405801700010800500801740080175003.591.9720.4290.3220.5000.7123.371.9330.3670.2740.437 1/2 - 13 UNC H3H41/2 - 20 UNFH3H49/16 - 12 UNCH3H449/16 - 18 UNFH3H48018000108006008018400108007003.812.1250.480 0.359 0.5620.7673.591.9720.4290.3220.500108008001080090010801000108011004.030.5420.4050.6250.8342.1253.810.4800.3590.562 Packed: 1 pc. EDP’s listed above are stocked standard, other coatings available upon request. Specify treatment at time of order. Work Material P M K N S H Carbon Steels AlloyList No.Low10101018Med.10351045HighSteelsDie10654140Steels4340Stainless SteelsCast30040017-4 PHIronAluminumNickelAlloyTitaniumHardened Steels60617075CastingInconel6Al4V(30 HRC)~35HRC35-4545-5050-70HRCHRCHRC S108 SFM 25-80 20-50 20-45 25-75 40-80 40-65 good best WWW.OSGTOOL.COM STI Taps 611