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1、INTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION MEXQJYHAPOJJHAR OPTAHl43Al#lR l-l0 CTAHflAPTM3AMM Hand- and machine-operated circular screwing dies and hand-operated die stocks Fili - thickness; - cutting portion length; - general di
2、mensions of attachment. It also gives the interchangeability dimensions of hand-operated die stocks. This International Standard is applicable to screwing dies intended for the manufacture of the following threads: - IS0 metric threads: - coarse thread, from Ml to M6S; - fine thread, from Ml to MS6.
3、 - IS0 inch threads: - “Unified coarse” series (UNC), from No. 1 - 64 to 2 314 - 4; - “Unified fine” series (UNF), from No. 0 - SO to 1 1/2 - 12. The dimensional characteristics of circular screwing dies, as a function of thread diameters and pitches, are given in annex A. The general dimensions of
4、screwing dies for threads which are not dealt with in this International Standard, and therefore are not recommended, are given for guidance only in annex B. Annex B is applicable to screwing dies for inch threads of the following types: B.l - “British Standard Whitworth” (BSW). 8.2 - “British Stand
5、ard Fine” (BSFI. B.3 - “British Association” (BA). All screwing dies are available in two classes, namely - non-precision screwing dies; - precision screwing dies. 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/99
6、72545001 Not for Resale, 04/22/2007 21:25:17 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 2568 : 1988 (E) 2 IS0 metric threads Screwing dies with: D = 16and20mm A-A D25mm & OSE Figure 1 - Metric screwing dies 2.1 Coarse thread Table 1 Dimensions in millimetres I Desi
7、gnation In,“,. I PitchI D I E Ml2 Ml4 Ml6 Ml6 M20 M22 M24 M27 - - C b a - - 12 1,75 - 14 36 14 16 2 1.2 6 1 18 45 18” 20 2,5 22 24 -6522 1.5 27 3 13 8 I I I M42 1 42 1 75 30 I 1 4,5 f-f 2 M46 1 45 - M46 48 8036 I I 2 M52 162 5 - - - - * For an Ml6 die, this dimension is an exception to the general t
8、able (table 6) given in annex A. - D - 16 - 20 - 25 - a - 02 - 3,5 - 1 - b Designation d Pitch nom. I 5 3 Ml,6 1,6 Ml,6 1 8 0,35 M2 2 0,4 M2,2 22 M2.5 2.5 Or4 M3 3 0.5 M3.5 3,5 0,6 M4 4 0,7 M4.5 4,5 0,75 M5 5 03 M6 6 5 I 3,5 - I 3.6 I M7 1 7 1 33 NOTES 1 The shape of the V-groove is left to the disc
9、retion of the manufacturer. Screwing dies are generally supplied with two chamfers at the thread entrance, according to the material to be threaded and at the discretion of the manufacturer. 2 Tolerances : - for precision screwing dies: - on D: f10 - onE: js12 - for non-precision screwing dies: - on
10、 D and E: the tolerances are left to the discretion of the manufacturer. 2 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:25:17 MDTNo reproduction or networking permitted wit
11、hout license from IHS -,-,- IS0 2568 : 1988 (EI 2.2 Fine thread Table 2 Dimensions in millimetres -T E C b - 8 2 - D - 16 5 20 25 - 30 - 38 - 15 - i5 - 5 - 14 - 16 - 18 - 0,s c6 - 0,8 - 1 - - I,5 - I,8 - b - - - - 6 B - a Designation M30 x 1.5 I,5 M30 x 2 30 2 M30 x 3 3 M32 x 1.5 1,5 M32 x 2 32 2 M3
12、3 x 1.5 I,5 M33 x 2 332 6! H M42 x 1.5 1.5 M42 x 2 2 M42 42 x 3 3 M42 x 4 4 M45 x 1.5 I,5 M45 x 2 2 - M45 3 45 x 3 M45 x 4 4 M48 x 1.5 l&l 50 - 7 Designation I d nom. Pitcl d Pitch D nom. 02 0.25 0,35 0,5 0,75 M3.5 x 0.35 3.5 M4 x 0.5 4 M4.5 x 0.5 4,5 M5 x 0.5 5 M5,5 x 0.5 1 5.5 36 36 2 22 36 22 36
13、22 36 - 2,s 22 36 1 1,25 1,25 1,25 2 I,5 2 1.5 2 1,5 2 I,5 2 1,5 2 105 For the shape of the V-groove and the tolerances, see notes 1 and 2 in 2.1. I M56 x 3 I I M56 x 4 4 3 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standar
14、ds 1/9972545001 Not for Resale, 04/22/2007 21:25:17 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 2568 : 1988 (EI 3 IS0 inch threads Screwing dies with : D = 16andZOmm A-A D25mm Figure 2 - Screwing dies UNC and UNF “Unified coarse” series WNCI 3.1 Table 3 Dimensions i
15、n millimetres Designation I d I Pitch nom. Z D Dl E 4 c b a 3 I No. 1 -54 - UNC I 1,= I 0,397 I No. 2 -66 - UNC I 2,184 I 0,454 16 11 5 3 I No. 3 -46 - UNC I 2,515 I 0,529 0,5 02 No. 4 -46 - UNC I 2.845 No. 5 -40 - UNC 3,175 0.= No. 8 -32 - UNC 3.505 No. 8 -32 - UNC 4,166 0.794 No. 10 -24 - UNC 4,82
16、6 No. 12 -24 - UNC 5,486 1,058 20 I l/4 -20 - UNC I 6,35 I 1,27 I 56 - 18 - UNC I 7,938 I 1,411 25 66 Or8 1 I 310 - 18 - UNC I 9,525 I 1.= 30 38 18 7116 - 14 - UNC 11,112 1,814 112 - 13 - UNC 12,7 1,954 I 9/w - 12 - UNC I 14,288 I 2,117 I 5/8 - 11 - UNC I 15,875 I 2.309 I 314 - 10 - UNC I 19.05 I 22
17、4 I 710 - 9 - UNC I 22,225 I z=Q 45 55 65 25 1,5 1 - 8 - UNC 25,4 3,175 11/a - 7 - UNC 28,575 1114 - 7 - UNC 31,75 3,629 1 318 - 8 - UNC 34,925 1112 - 8 - UNC a.1 4.233 1314 - 5 - UNC 446 5.08 2 - 41/2-UNC 50.8 2 114 - 4 112 - UNC 57.15 5,644 2112 - 4 - UNC 6385 2314 - 4 - UNC ma 6,35 4 1,8 8 2 75 9
18、0 2 105 23 10 120 36 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:25:17 MDTNo reproduction or networking permitted without license from IHS -,-,- IS02558 : 1988 (E) 3.2 “Un
19、ified fine” series WNFI Table 4 Dimensions in millimetres Designation d Pitch nom. Z D E C b a Dl El No. 0 - 80 - UNF 1,524 0,318 No. 1 72 UNF 1,854 0,353 2.5 - - 16 11 5 3 No. 2 - 64 - UNF 2,184 0,367 3 No. 3 - 56 - UNF 2,515 0,454 ot5 0.2 No. 4 - 48 - UNF 2,845 0,526 NOTES 1 The shape of the V-gro
20、ove is left to the discretion of the manufacturer. Screwing dies are generally supplied with two chamfers at the thread entrance, according to the material to be threaded and at the discretion of the manufacturer. 2 Tolerances: - for precision screwing dies: - on D: fl0 - on E: js12 - for non-precis
21、ion screwing dies: - on D and E: the tolerances are left to the discretion of the manufacturer. 5 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:25:17 MDTNo reproduction or n
22、etworking permitted without license from IHS -,-,- IS0 2568 : 1988 (E) 4 Die stocks - Interchangeability dimensions (For metric and inch threads) For screwing dies with D = 16 and 20 mm For screwing dies with D 25 mm Figure 3 - Die stocks Table 5 Dimensions in millimetres 18 17 8,8 65 25 23 12,2 58
23、M8 m 18 9.7 75 30 28 14.7 68 M8 22 m 10,7 90 36 34 17.7 82 M8 10,7 105 22120 1 36 1 34 1 17.7 95 Ml0 22 20 10.7 im 36 34 17,7 107 Ml0 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2
24、007 21:25:17 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 2558 : 1988 (E) 5 Marking 5.1 Screwing dies for IS0 metric threads, the dimensions of which conform with those given in tables 1 and 2, shall be marked with the thread designation. Examples : A circular screwi
25、ng die for coarse IS0 metric threads (for example Ml) shall be marked as follows: Ml A circular screwing die for fine IS0 metric threads (for example Ml2 x 1,251 shall be marked as follows: Ml2 x 1.25 5.2 Screwing dies for IS0 inch threads, UNC and UNF series and types BSW, BSF and BA, the dimension
26、s of which conform with those given in tables 3, 4, 7, 8 and 9, shall be marked with the thread designation. Examples : A screwing die for IS0 inch threads, UNC series (for example 114 - 201, shall be marked as follows: l/4 - 26 - UNC A screwing die for IS0 inch threads, UNF series (for example No.
27、12 - 281, shall be marked as follows: No. 12 - 28 - UNF A screwing die for IS0 inch threads, type BSW (for example I/Z - 121, shall be marked as follows: l/2 - 12 - BSW A screwing die for IS0 inch threads, type BSF (for example 114 - 261, shall be marked as follows: l/4 - 26 - BSF A screwing die for
28、 IS0 inch threads, type BA (for example No. 41, shall be marked as follows: BA No. 4 5.3 Where tools comply in all respects with the relevant International Standards, the symbol IS0 may be appended to the mark at the discretion of the manufacturer. 7 Copyright International Organization for Standard
29、ization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:25:17 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO2588:1988(E) Annex A General table of dimensional characteristics of circular screwing dies f
30、or metric and inch threads (This annex forms an integral part of the standard.) 8 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:25:17 MDTNo reproduction or networking permit
31、ted without license from IHS -,-,- IS0 2888 : 1988 (E) Annex B Screwing dies with: D = 16and20mm D25mm Circular screwing dies for non-IS0 inch threads (This annex does not form an integral part of the standard.) A-A Figure 4 - Screwing dies BSW, BSF and BA & OSE B.l For “British Standard Whitworth”
32、threads (BSW) Table 7 Dimensions in millimetres Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:25:17 MDTNo reproduction or networking permitted without license from IHS -,-,-
33、 IS0 2888 : 1988 (E) 8.2 For “British Standard Fine” threads (BSFI Table 8 Dimensions in millimetres c b a E 7 9 11 10 14 22 25 30 38 36 36 4 3.6 0.8 6 1 1 12 6 !i/s - 14 - BSF 15,875 1,814 II/16 - 14 - BSF 17,462 45 314 - 12 - BSF 19,05 2,117 I 718 - 11 - BSF I 22,225 I 2,309 55 1.5 I 1 - 10 - BSF
34、I 25,4 I 224 1 l/9 - 9 - BSF 28,575 1 174 - 9 - BSF 31,75 2,= 65 I 1 318 - 9 - BSF I 34,925 I 13 8 1 l/z - 8 - BSF 38.1 3,175 1 5/a - 8 - BSF 41,275 1 314 - 7 - BSF 44.45 75 2 I I 2 - 7 - BSF 503 3,629 90 2 I 2 114 - 6 - BSF I 57,15 I 105 2.5 10 2 112 - 6 - BSF 63,5 4,233 2 374 - 6 - BSF e= 1 120 NO
35、TES 1 The shape of the V-groove is left to the discretion of the manufacturer. Screwing dies are generally supplied with two chamfers at the thread entrance, according to the material to be threaded and at the discretion of the manufacturer. 2 Tolerances : - for precision screwing dies: - onD: f10 -
36、 on E: js12 - for non-precision screwing dies: - on D and E: the tolerances are left to the discretion of the manufacturer. 10 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:
37、25:17 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 2888 : 1988 (E) B.3 For “British Association” threads (BA) Table 9 Dimensions in millimetres 1 d 1 Pitch 1 D 1 D, 1 E ( E, 1 C / b 1 a Designation nom. - 5 BA No. 14 1 0,23 BA No. 13 1,2 0,25 BA No. 12 1,3 0,26 BA No
38、. 11 1,5 0,31 16 BA No. 10 1,7 0,35 11 2 2.5 3 NOTES 1 The shape of the V-groove is left to the discretion of the manufacturer. Screwing dies are generally supplied with two chamfers at the thread entrance, according to the material to be threaded and at the discretion of the manufacturer. 2 Toleran
39、ces : - for precision screwing dies: - onD: f10 - on E: js12 - for non-precision screwing dies: - on D and E: the tolerances are left to the discretion of the manufacturer. 11 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Stan
40、dards 1/9972545001 Not for Resale, 04/22/2007 21:25:17 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 2568 : 1988 (E) UDC 621.992 Descriptors : tools, cutting tools, threading dies, marking. Price based on 11 oaaes Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 21:25:17 MDTNo reproduction or networking permitted without license from IHS -,-,-