1、May 2012 Translation by DIN-Sprachendienst.English price group 7No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 21.
2、060.50!$3“1886116www.din.deDDIN 258Taper pins with thread ends and constant taper lengthsEnglish translation of DIN 258:2012-05Kegelstifte mit Gewindezapfen und konstanten KegellngenEnglische bersetzung von DIN 258:2012-05Goupilles coniques filetes et longueurs de cne constantesTraduction anglaise d
3、e DIN 258:2012-05SupersedesDIN 258:2011-02www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.905.12 DIN 258:2012-05 2 A comma is used as the decimal marker. Contents Page Foreword . 3 1 Scope . 4 2 Normative references . 4 3 Dimension
4、s 5 4 Technical delivery conditions . 7 5 Designation . 7 Annex A (informative) Explanatory notes 8 Bibliography . 9 DIN 258:2012-05 3 Foreword This standard has been prepared by Working Committee NA 067-00-09 AA Verbindungselemente ohne Gewinde of the Normenausschuss Mechanische Verbindungselemente
5、 (Fasteners Standards Committee). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN shall not be held responsible for identifying any or all such patent rights. The DIN 4000-163-1 tabular layout of product properties applies to
6、taper pins with thread ends covered in this standard. Amendments This standard differs from DIN 258:1977-02 as follows: a) normative references have been updated; b) the standard has been editorially revised; c) Clause 4 “Technical delivery conditions” has been included; d) tolerances have been spec
7、ified for dimension l2. Compared with DIN 258:2011-02 the following corrections have been made: a) d1 min for nominal sizes 40 mm and 50 mm has been corrected; b) the minimum value of l1for nominal size 40 mm has been corrected; c) in Table 1 und Clause 2 the reference to DIN EN ISO 286-2 has been c
8、orrected; d) a reference concerning the tabular layout of product properties has been included. Previous editions DIN 258: 1920-06, 1921-09, 1936-07, 1943x-01, 1956-06, 1961-03, 1977-02, 2011-02 DIN 258:2012-05 4 1 Scope This standard specifies dimensions and technical delivery conditions for unhard
9、ened taper pins with metric thread end and constant taper length with nominal diameters from 5 mm to 50 mm. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references,
10、the latest edition of the referenced document (including any amendments) applies. DIN 76-1, Thread run-outs and thread undercuts Part 1: For ISO metric threads in accordance with DIN 13-1 DIN 4000-163, Tabular layout of properties Part 163: Fasteners without thread DIN 7178-1, System of cone toleran
11、ces and cone fits for conical workpieces from C = 1:3 to 1:500 and lengths from 6 to 630 mm System of cone tolerances DIN 50938, Black oxide coatings on iron or steel Requirements and test methods DIN EN 12476, Phosphate conversion coatings of metals Method of specifying requirements DIN EN 28737, U
12、nhardened taper pins with external thread DIN EN ISO 286-2, Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts DIN EN ISO 2081, Metallic and other inorganic coatings Electropla
13、ted coatings of zinc with supplementary treatments on iron or steel DIN EN ISO 3269, Fasteners Acceptance inspection DIN ISO 965-1, ISO general purpose metric screw threads Tolerances Part 1: Principles and basic data DIN ISO 2768-1, General tolerances Tolerances for linear and angular dimensions wi
14、thout individual tolerance indications DIN ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts ISO 4520, Chromate conversion coatings on electroplated zinc and cadmium coatings DIN 258:2012-05 5 3 Dimensions See Figure 1 and Table 1. Key 1 Short dog point with rounded end x1As
15、 in DIN 76-1 d1Nominal size d2Auxiliary dimension for taper Rz Surface roughness Figure 1 Dimensions of taper pin (notation) DIN 258:2012-05 6 Table 1 Dimensions Dimensions in millimetresd1a bNom. size 5 6 8 10 12 14 16 20 25 30 40 50 max. 5 6 8 10 12 14 16 20 25 30 40 50 min. 4,952 5,952 7,942 9,94
16、2 11,930 13,930 15,930 19,916 24,916 29,916 39,900 49,900bcmin. 14,0 18,0 22,0 24,0 27,0 30,0 35,0 35,0 40,0 46,0 58,0 70,0 max. 15,6 20,0 24,5 27,0 30,5 33,5 39,0 39,0 45,0 52,0 65,0 78,0 d2Auxiliary dimension5,5 6,6 8,8 10,9 13,1 15,3 17,4 21,7 27,0 32,2 42,6 53,0 d3M5 M6 M8 M10 M12 M12 M16 M16 M2
17、0 M24 M30 M36 l2Nom. size 25 30 40 45 55 65 72 85 100 110 130 150 max. 25,2 30,2 40,3 45,3 55,3 65,3 72,3 85,3 100,3 110,3 130,5 150,5min. 24,8 29,8 39,7 44,7 54,7 64,7 71,7 84,7 99,7 109,7 129,5 149,5r10,3 0,4 0,4 0,5 0,6 0,6 0,8 0,8 1,0 1,0 1,2 1,6 r20,6 0,6 0,6 1,0 1,0 1,0 1,6 1,6 1,6 2,5 2,5 4,0
18、 l1dMass (7,85 kg/dm3) kg per 1 000 units Nominal size min. max. 40 39,500 40,500 6,0 45 44,500 45,500 6,8 9,8 50 49,500 50,500 7,5 10,9 55 54,400 55,600 12,0 20,0 60 59,400 60,600 13,1 23,9 65 64,400 65,600 25,9 39,3 75 74,400 75,600 29,9 45,5 85 84,300 85,700 51,7 73,6 98,4 100 99,300 100,700 61,0
19、 87,0 112 120 119,300 120,700 105 131 190 272 140 139,200 140,800 123 150 222 304 515 160 159,200 160,800 254 336 564 820 190 189,075 190,925 384 638 926 1 640 220 219,075 220,925 712 1 030 1 810 2 910 250 249,075 250,925 786 1 140 1 980 3 150 280 278,950 281,050 1 250 2 160 3 390 320 318,850 321,15
20、0 2 380 3 710 360 358,850 361,150 4 030 For dimensions without tolerance indication, the class m general tolerances as in DIN ISO 2768-1 shall apply. Lengths exceeding 360 mm shall be graded in 40 mm increments. Commercial lengths of taper pins are those given in the zone between the continuous step
21、ped lines (preferred lengths between 5 mm and 25 mm). For taper pins with lengths above the dashed line, b l1 (l2 1,5 x1). Where lengths above the upper stepped line are required, taper pins as in DIN EN 28737 are recommended. aTolerance class h10 as in DIN EN ISO 286-2 shall apply. Other tolerances
22、 shall be subject to agreement. bThe tolerances shall apply for taper pins after coating. cTolerance 02 P(P = pitch) shall apply. Other tolerances shall be subject to agreement. dTolerance class js15 as in DIN EN ISO 286-2 shall apply. DIN 258:2012-05 7 4 Technical delivery conditions See Table 2. T
23、able 2 Technical delivery conditions General requirements DIN ISO 8992 Thread Tolerance class 6g Standard DIN ISO 965-1 Material Free-cutting steel (St)aHardness 125 HV to 245 HV Tolerance on taper angle Product grade AT 10 Standard DIN 7178-1 Surface finish As processed, black, treated with a rust-
24、protective lubricant, unless otherwise agreed between customer and supplier. Preferred coatings are black oxide coating as in DIN 50938, phosphate coating as in DIN EN 12476 or zinc plating with chromate conversion coating (see DIN EN ISO 2081 and ISO 4520). Other coatings shall be subject to agreem
25、ent. All tolerances shall apply prior to the application of a plating or coating. Workmanship Pins shall be uniform in quality and free of irregularities or detrimental defects. The surface of pins shall be free from burr. Acceptance inspection DIN EN ISO 3269 aOther materials shall be subject to ag
26、reement. 5 Designation Designation of a taper pin with metric thread end and constant taper length, with a nominal diameter d1= 10 mm and a length l1= 85 mm, made of free-cutting steel (St): Taper pin DIN 258 10 85 St DIN 258:2012-05 8 Annex A (informative) Explanatory notes When dismantling the pin
27、s, difficulties may arise if the larger diameter of the taper has sharp edges. It is therefore recommended that either a small chamfer be made at this point or that the taper be made cylindrical at the edge of the upper part over a length of about 1 mm. DIN 258:2012-05 9 Bibliography DIN 962, Bolts, screws, studs and nuts Designation, types and finishes
