
d k GENERAL PURPOSE S. T. I. SCREW THREAD INSERT List S108 (Continued) 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 5/8 - 11 UNC H3H45/8 - 18 UNFH3H4 108012001080130010801400108015004.25 2.433 0.590 0.442 0.6880.9094.032.1650.5420.4050.625 3/4 - 10 UNC H3H53/4 - 16 UNF7/8 - 9 UNCH3H4H3H547/8 - 14 UNFH3H41 - 8 UNCH61 - 12 UNFH4H6108016001080170010801800108019004.682.6530.6970.5220.7511.0004.462.4330.6520.4880.6881080200010802100108022005.121.1103.0110.8000.6000.81110802300108024001080250010802600108027005.751.0200.7661.0001.2513.0745.430.8950.6720.874 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 612 STI Taps WWW.OSGTOOL.COM