Threading Technology – Clamping Technology 520

194 UNC UNF M MF G SELF-LOCK Tech. Info v c Product Finder STI Roll Form Taps HSS Extra Ordering Example: BU929000.5633 DIN Length · ANSI Shank Overall length acc. to DIN 2174 l 1 ø d 1 l 2 ø d 2 l 3 Reinforced Shank (STI-No.4 - STI 5 / 16 ) ø d 2 ø d 1 l 2 l 1 Reduced Shank (STI 3 / 8 - STI 1 / 2 ) STEEL Steel Materials STI-UNF P 60° Unified Fine Thread ASME B18.29.1 For wire thread inserts Class of Fit 2BX Coating TICN Cutting Material HSS Extra Technical Characteristics C / 2-3 E / O / P Thread Depth max. 3 x d 1 and Hole Shape Applications – Material P 1 .1- 3 .1 M 1 .1- 2 .1 2) N 1 .4-5, 2 .1-2 Reinforced Shank Tool Identification BU929000 Dimens. ID Druck 1-STEEL-SN TICN Nominal Size ø d 1 T.P.I. inch ø d 1 l 1 l 2 l 3 ø d 2 STI-No. 4 48 0.1391 2.205 0.472 0.787 0.141 0.110 0.1299 .5633 STI-No. 6 40 0.1705 2.480 0.512 0.827 0.168 0.131 0.1594 .5635 STI-No. 8 36 0.2001 3.150 0.512 1.142 0.220 0.165 0.1870 .5636 STI-No. 10 32 0.2306 3.150 0.512 1.181 0.255 0.191 0.2165 .5637 STI 1 / 4 28 0.2964 3.543 0.669 1.260 0.318 0.238 0.2795 .5639 STI 5 / 16 24 0.3666 3.937 0.709 1.535 0.381 0.286 0.3465 .5640 Reduced Shank Tool Identification CU929000 Dimens. ID Druck 2-STEEL-SN TICN Nominal Size ø d 1 T.P.I. inch ø d 1 l 1 l 2 l 3 ø d 2 STI 3 / 8 24 0.4291 3.937 0.709 — 0.323 0.242 0.4094 .5641 STI 7 / 16 20 0.5025 3.937 0.866 — 0.367 0.275 0.4783 .5642 STI 1 / 2 20 0.5650 3.937 0.866 — 0.429 0.322 0.5413 .5643 new We recommend a smaller preparatory diameter by 0.002 in for difficult to form materials (such as aluminum cast alloys) for P = 24 T.P.I. and coarser threads. For further information regarding the recommended preparatory diameters, see page 208 - 209.