d k GENERAL PURPOSE S. T. I. SCREW THREAD INSERT List 128 HSS BR STI Straight Fluted, Modified Bottom (2.5P-3P) Lc Ln L lk Tap Size ThreadLimit No. ofFlutes EDP Number Overall Thread Neck Shank Square SquareModified BottomLengthLengthLengthDia.WidthLength(2.5P - 3P) Bright L Lc Ln d k lk M2 x 0.4M2.5 x 0.45 D2 2 12800100 47 13 14.01280020049616.33.58 2.79 4.8 M3 x 0.5 12800300 50 7 17.6 M4 x 0.7M5 x 0.8M6 x 1.0 3D3 12800400 60 10 22.7 4.92 3.86 6.412800500631125.56.474.857.912800600691428.68.076.059.5 M8 x 1.25M10 x 1.5M12 x 1.75D4 1280070012800800 7485 1721 31.849.1 9.679.32 7.266.98 11.112800900912450.110.898.1812.7 M14 x 2.0M16 x 2.0 4 1280100012801100 102108 28 55.0 13.76 10.31 15.961.814.9811.2317.5 M18 x 2.5 D5M20 x 2.5 1280120012801300 119124 35 67.468.4 17.70 13.2819.3014.4819.1 M22 x 2.5 12801400 130 76.5 20.32 15.24 20.6 M24 x 3.0 D6 12801500 138 42 79.1 22.75 17.07 22.4 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 128 SFM 25-80 20-50 20-45 25-75 40-80 40-65 good best 628 STI Taps WWW.OSGTOOL.COM