Threading Technology – Clamping Technology 520

116 Machine Taps HSS Extra UNC UNF UNEF UN-8 M MF NPSF Rp (BSPP) G NPT NPTF STI SELF-LOCK Accessories NPSM/NPSC Tech. Info v c Product Finder Rc (BSPT) Thread Hole Preparatory Diameters for Tapered Pipe Thread Rc (BSPT), Taper 1:16 A) Cylindrical preparation of thread hole B) Tapered preparation of thread hole ø D 1 t 1 ø D 3 ø D 2 t 1 Taper 1:16 Ordering Example: C0183000.4116 DIN Length · DIN Shank ø d 2 ø d 1 l 2 l 1 Reduced Shank VA Stainless Steel Materials Rc (BSPT) P 55° 1:16 Tapered Whitworth Pipe Thread, DIN EN ISO 10226-2 and ISO 7-1 Where pressure-tight joints are made on the threads, taper 1:16 Class of Fit Coating Cutting Material HSS Extra Technical Characteristics C / 2-3 E / O Applications – Material P 1 .1- 4 .1 M 1 .1- 2 .1 K 2 .1- 4 .2 N 1 .4-5, 2 .4-6 Tool Identification C0183000 Dimens. ID Rekord 2A-VA Flutes Nominal Size ø d 1 T.P.I. mm l 1 l 2 ø d 2 Rc 1 / 4 19 100 18 11 9 .4116 3 Rc 3 / 8 19 110 18 14 11 .4117 5 Rc 1 / 2 14 140 23 16 12 .4118 5 Rc 3 / 4 14 150 24 20 16 .4119 5 Rc 1 11 170 30 25 20 .4120 7 Taper reamers for taper holes 1:16, see page 118 Nominal Size ø d 1 T.P.I. mm ø D 1 ø D 2 ø D 3 (JS11) t 1 Rc 1 / 16 28 6.15 6.10 6.56 11.1 Rc 1 / 8 28 8.15 8.10 8.57 11.1 Rc 1 / 4 19 10.85 10.75 11.45 16.3 Rc 3 / 8 19 14.30 14.25 14.95 16.7 Rc 1 / 2 14 17.80 17.70 18.63 22.3 Rc 3 / 4 14 23.20 23.10 24.12 23.6 Rc 1 11 29.20 29.10 30.29 28.3 The minimum drilling depth t 1 includes the reach of screw by hand L 1 and the effective depth L 3 to DIN EN ISO 10226-2 and ISO 7-1 as well as the chamfer of the tap. Additional drilling-down has to be determined by the user according to the construction of the workpiece. For series production it is recommended that the minor thread dia. be made as per B. Special taps are required for blind holes where the minimum depths t 1 as listed in the above table cannot be met. In this case please supply a sketch with blind hole dimensions along with the order. new