1、April 2017 English price group 8No 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 21.060.10!%gkl“2687273www.din.deDIN
2、 444Fasteners Eye bolts,English translation of DIN 444:2017-04Mechanische Verbindungselemente Augenschrauben,Englische bersetzung von DIN 444:2017-04Fixations Corps de boulon oeil,Traduction anglaise de DIN 444:2017-04SupersedesDIN 444:1983-04www.beuth.deDocument comprises 11 pagesDTranslation by DI
3、N-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.06.17 DIN 444:2017-04 2 A comma is used as the decimal marker. Contents Page Foreword . 3 1 Scope 4 2 Normative references 4 3 Dimensions and designation . 5 4 Geometrical tolerances . 9 5 Technical del
4、ivery conditions . 11 DIN 444:2017-04 3 Foreword This standard has been prepared by Working Committee NA 067-00-08 AA Verbindungselemente mit Sonderformen und aus Kunststoff of DIN-Normenausschuss Mechanische Verbindungselemente (DIN Standards Committee Fasteners). After the publication of the draft
5、 version of DIN 444:2015-09, many comments were received regarding the Standards Committees intentional deletion of Type B eye bolts, prompting the Committee to include Type B in the standard again. Because the planned restrictions on tolerances in Figure 1 also met with resistance and needed to be
6、modified (see new Clause 4 “Geometrical tolerances”), the Committee made the decision to bring out a new version of the standard which incorporated these substantial revisions. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights withou
7、t these having been identified here. DIN and/or DKE shall not be held responsible for identifying any or all such patent rights. Amendments This standard differs from DIN 444:1983-04 as follows: a) normative references have been updated; b) in Table 1, minimum and maximum dimensions have been given
8、for d2and r and limit deviations have been included for nominal lengths l = 20 mm and l = 25 mm; in addition, weights have been added for screw threads M5, M6, M8, M20, M24 and M30; c) a figure of an eye bolt threaded nearly to the eye has been added (Figure 2); d) Clause 4 “Geometrical tolerances”
9、has been added. Previous editions DIN 444: 1933-12, 1937-10, 1971-01, 1981-10, 1983-04 DIN 444-1: 1942-04, 1953-11, 1963-04 DIN 444:2017-04 4 1 Scope This standard specifies eye bolts with M5 to M39 metric threads of product grades A, B and C. 2 Normative references The following documents, in whole
10、 or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 76-1, Thread run-outs and thread und
11、ercuts Part 1: For ISO metric threads in accordance with DIN 13-1 DIN 267-2, Fasteners Technical delivery conditions Design and dimensional accuracy DIN 962, Bolts, screws, studs and nuts Designation, types and finishes DIN EN 10243-1, Steel die forgings Tolerances on dimensions Part 1: Drop and ver
12、tical press forgings DIN EN 10243-2, Steel die forgings Tolerances on dimensions Part 2: Upset forgings made on horizontal forging machines DIN EN 22340, Clevis pins without head DIN EN 22341, Clevis pins with head DIN EN 26157-1, Fasteners Surface discontinuities Bolts, screws and studs subject to
13、general requirements DIN EN ISO 225, Fasteners Bolts, screws, studs and nuts Symbols and descriptions of dimensions DIN EN ISO 286-1, Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 1: Basis of tolerances, deviations and fits DIN EN ISO 898-1, Mechanical
14、properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs with specified property classes Coarse thread and fine pitch thread DIN EN ISO 3269, Fasteners Acceptance inspection DIN EN ISO 4042, Fasteners Electroplated coatings DIN EN ISO 4759-1, Tolerances for fasten
15、ers Part 1: Bolts, screws, studs and nuts Product grades A, B and C DIN EN ISO 10684, Fasteners Hot dip galvanized coatings DIN ISO 262, ISO general purpose metric screw threads Selected sizes for screws, bolts and nuts DIN ISO 965-1, ISO general purpose metric screw threads Tolerances Part 1: Princ
16、iples and basic data DIN ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts DIN 444:2017-04 5 3 Dimensions and designation For dimensions see Figure 1, Table 1 and Table 2. Symbols and their descriptions are specified in DIN EN ISO 225. Type A (product grade C) Type B (produc
17、t grade B) Type C (product grade A) Key x1thread run-out according to DIN 76-1 u 2P (incomplete thread) Figure 1 Eye bolt Designation of a Type A eye bolt (product grade C) with d1= M10 screw thread, length l = 70 mm and of property class 4.6: Eye bolt DIN 444 M10 70 4.6 DIN 444:2017-04 6 Table 1 Di
18、mensions Dimensions in millimetres Screw thread, d1M5 M6 M8 M10 M12 M16 Pa 0,8 1 1,25 1,5 1,75 2 b+20l 125 mm 16 18 22 26 30 38 125 mm 200 mm 49 57 d2Nominal size = min. 5 6 8 10 12 16 max. 5,030 6,030 8,036 10,036 12,043 16,043 d3bmax. 12 14 18 20 25 32 Type A min. 10,9 12,9 16,9 18,7 23,7 30,4 Typ
19、e B and C 11,57 13,57 17,57 19,48 24,48 31,38 r Nominal size 2,5 4 4 4 6 6 max. 3,75 6,0 6,0 6,0 9,0 9,0 min. 1,875 3,0 3,0 3,0 4,5 4,5 s Type A max. 8 9 11 14 17 19 min. 7,52 8,52 10,3 13,3 16,3 18,16 Type B and C max. 6 7 9 12 14 17 min. 5,88 6,85 8,85 11,82 13,82 16,82 l Mass (7,85 kg/dm3) kg per
20、 1 000 units Nom. size Type A Type B Type C min. max. min. max. min. max. 20 18,95 21,05 19,35 20,65 19,6 20,4 6,24 8,99 16,34 25 23,95 26,05 24,35 25,65 24,6 25,4 7,08 10,19 18,51 30 28,95 31,05 29,35 30,65 29,6 30,4 7,93 35 33,75 36,25 34,2 35,8 34,5 35,5 8,70 12,6 40 38,75 41,25 39,2 40,8 39,5 40
21、,5 9,47 13,7 25,0 45 43,75 46,25 44,2 45,8 44,5 45,5 10,3 14,8 26,9 36,0 50 48,75 51,25 49,2 50,8 49,5 50,5 11,0 15,9 28,9 39,1 55 53,5 56,5 54,05 55,95 54,4 55,6 11,8 17,0 30,9 42,2 67,0 60 58,5 61,5 59,05 60,95 59,4 60,6 12,6 18,1 32,8 45,3 71,4 65 63,5 66,5 64,05 65,95 64,4 65,6 13,3 19,2 34,8 48
22、,4 75,8 70 68,5 71,5 69,05 70,95 69,4 70,6 14,1 20,3 36,8 51,5 80,3 149 75 73,5 76,5 74,05 75,95 74,4 75,6 14,9 21,5 38,8 54,6 84,8 157 80 78,5 81,5 79,05 80,95 79,4 80,6 15,7 22,6 40,7 57,6 89,2 164 90 88,25 91,75 88,9 91,1 89,3 90,7 23,7 44,7 63,8 98,1 180 100 98,25 101,75 98,9 101,1 99,3 100,7 48
23、,6 70,0 106 196 110 108,25 111,75 108,9 111,1 109,3 110,7 52,6 76,1 115 212 120 118,25 121,75 118,9 121,1 119,3 120,7 56,5 82,3 124 228 130 128 132 128,75 131,25 129,2 130,8 60,5 88,4 133 244 140 138 142 138,75 141,25 139,2 140,8 64,4 94,5 142 259 150 148 152 148,75 151,25 149,2 150,8 101,0 151 275
24、160 156 164 158,75 161,25 159,2 160,8 160 291 180 176 184 178,75 181,25 179,2 180,8 178 322 200 195,4 204,6 198,55 201,45 199,1 200,9 195 354 220 215,4 224,6 218,55 221,45 219,1 220,9 211 383 240 235,4 244,6 238,55 241,45 239,1 240,9 229 414 260 254,8 265,2 258,4 261,6 258,9 261,0 247 446 aP = Threa
25、d pitch bSee page 8. DIN 444:2017-04 7 Table 1 (continued) Dimensions in millimetres Screw thread, d1M20 M24 (M27) M30 Pa 2,5 3 3 3,5 b+20l 125 mm 46 54 60 66 125 mm 200 mm65 73 79 85 d2Nominal size = min. 18 22 24c25 27c28 max. 18,043 22,052 24,052 25,052 27,052 28,052 d3bmax. 40 45 50 55 Type A mi
26、n. 38,4 43,4 48,4 53,1 Type B and C 39,38 44,38 49,38 54,26 r Nominal size 6 10 10 10 max. 9,0 15,0 15,0 15,0 min. 4,5 7,5 7,5 7,5 s Type A max. 24 28 30 34 min. 23,16 27,16 29,16 33 Type B and C max. 22 25 27 30 min. 21,79 24,79 26,79 29,79 l Mass (7,85 kg/dm3) kg per 1 000 units Nom. size Type A T
27、ype B Type C min. max. min. max. min. max. 70 68,5 71,5 69,05 70,95 69,4 70,6 255 80 78,5 81,5 79,05 80,95 79,4 80,6 282 378 90 88,25 91,75 88,9 91,1 89,3 90,7 308 417 100 98,25 101,75 98,9 101,1 99,3 100,7 334 454 110 108,25 111,75 108,9 111,1 109,3 110,7 359 489 120 118,25 121,75 118,9 121,1 119,3
28、 120,7 383 524 618 816 130 128 132 128,75 131,25 129,2 130,8 408 560 663 878 140 138 142 138,75 141,25 139,2 140,8 433 596 708 940 150 148 152 148,75 151,25 149,2 150,8 457 631 753 997 160 156 164 158,75 161,25 159,2 160,8 482 667 798 1 050 180 176 184 178,75 181,25 179,2 180,8 531 738 888 1 160 200
29、 195,4 204,6 198,55 201,45 199,1 200,9 581 809 978 1 270 220 215,4 224,6 218,55 221,45 219,1 220,9 624 868 1 060 1 370 240 235,4 244,6 238,55 241,45 239,1 240,9 674 939 1 140 1 480 260 254,8 265,2 258,4 261,6 258,9 261,0 723 1 010 1 230 1 590 280 274,8 285,2 278,4 281,6 278,9 281,0 772 1 320 1 700 3
30、00 294,8 305,2 298,4 301,6 298,9 301,0 823 1 400 1 810 aP = Thread pitch bSee page 8. cSee page 8. DIN 444:2017-04 8 Table 1 (continued) Dimensions in millimetres Screw thread, d1(M33) M36 (M39) Pa 3,5 4 4 b+20l 125 mm 125 mm 200 mm91 97 103 d2Nominal size = min. 30 32 33c35 36cmax. 30,052 32,062 33
31、,062 35,062 36,062 d3bmax. 60 65 70 Type A min. 58,1 63,1 68,1 Type B and C 59,26 64,26 69,26 r Nominal size 16 16 16 max. 22,4 22,4 22,4 min. 12,8 12,8 12,8 s Type A max. 38 41 46 min. 37 40 45 Type B and C max. 34 38 41 min. 33,75 37,75 40,75 l Mass (7,85 kg/dm3) kg per 1 000 units Nom. size Type
32、A Type B Type C min. max. min. max. min. max. 110 108,25 111,75 108,9 111,1 109,3 110,7 120 118,25 121,75 118,9 121,1 119,3 120,7 130 128 132 128,75 131,25 129,2 130,8 140 138 142 138,75 141,25 139,2 140,8 150 148 152 148,75 151,25 149,2 150,8 1 240 160 156 164 158,75 161,25 159,2 160,8 1 310 1 570
33、1 880 180 176 184 178,75 181,25 179,2 180,8 1 440 1 730 2 070 200 195,4 204,6 198,55 201,45 199,1 200,9 1 570 1 890 2 250 220 215,4 224,6 218,55 221,45 219,1 220,9 1 690 2 050 2 420 240 235,4 244,6 238,55 241,45 239,1 240,9 1 820 2 200 2 610 260 254,8 265,2 258,4 261,6 258,9 261,0 1 960 2 350 2 790
34、280 274,8 285,2 278,4 281,6 278,9 281,0 2 100 2 500 2 970 300 294,8 305,2 298,4 301,6 298,9 301,0 2 240 2 650 3 100 Lengths exceeding 300 mm shall be graded in 20 mm increments. The commercial lengths are indicated by their weights. The weights are guideline values. Bracketed sizes and intermediate
35、lengths should be avoided if possible. Eye bolts with nominal lengths which have weights that are above the stepped dashed line are threaded nearly to the head with lgaccording to Table 2; thus the dimension b does not apply for these eye bolts. aP = Thread pitch bIf eye bolts are drop forged, the p
36、ermissible deviations for forgings F specified in DIN EN 10243-1 or DIN EN 10243-2 shall apply to the dimensions of the unmachined portion and to the residual flash and mismatch in the case of product grades B and C, whereas the permissible deviations specified in the above table or in DIN EN ISO 47
37、59-1 or DIN 267-2 shall apply to the dimensions of the machined portion. In contrast to DIN 267-2, the maximum peak-to-valley height of the shank may be Rmax= 100 m in the case of product grades A and B. For the eyehole, Rmax= 25 m is permissible for all three types. cThe bore diameters 24 mm, 27 mm
38、, 33 mm and 36 mm have also been included, taking into account the bolts specified in DIN EN 22340 and DIN EN 22341. If eye bolts with these bores are to be supplied, the bore diameter shall be indicated in the designation (see example of designation). DIN 444:2017-04 9 See DIN 962, as far as applic
39、able to eye bolts, for supplementary order designations for special bolt types and finishes. Eye bolts threaded nearly to the eye can also be supplied (see Figure 2). In this case, the letter “L” shall be added to the designation, e.g.: Eye bolt DIN 444 LA M10 70 4.6 For this design, the dimensions
40、in Table 2 shall apply to the distance from the last full form thread to the centre of the eyehole. Figure 2 Eye bolts threaded nearly to the eye Table 2 Dimension lgDimensions in millimetres Screw thread, d1M5 M6 M8 M10 M12 M16 M20 M24 M27 M30 M33 M36 M39 Distance, lgmax. 11 14 16 18 23 27 32 40 42
41、 46 54 59 61 If M27, M30, M36 or M39 eye bolts are to be supplied with the bore diameters of 24 mm, 27 mm, 33 mm or 36 mm (see Table 1, footnote c), the bore diameter shall be indicated in the designation, e.g.: Eye bolt DIN 444 A M30 200 27 4.6 4 Geometrical tolerances The geometrical tolerances in
42、 Table 3 shall apply. DIN 444:2017-04 10 a) Perpendicularity tolerance b) Symmetry tolerance Key Type A Type B Type C tr, ts2IT14 2IT14 2IT13 Reference dimension for the allocation of tris s; tsis d1Tolerance grade (IT13 and IT14) as in DIN EN ISO 286-1 a Reference element A shall be as close as pos
43、sible to the eye. It shall either be a complete shank or completely threaded. Figure 3 Geometrical tolerances DIN 444:2017-04 11 5 Technical delivery conditions See Table 3. Table 3 Technical delivery conditions and reference standards Material Steel General requirements Standard DIN ISO 8992 Thread
44、 Tolerance class Product grade A = 6 gaProduct grade B = 6 gaProduct grade C = 8 gaStandard DIN ISO 262, DIN ISO 965-1 Mechanical properties Strength class 4.6; 5.6 Other property classes or materials shall be subject to agreement. Standard DIN EN ISO 898-1 Marking None Limit deviations, geometrical
45、 tolerances Product grade A; B; C Standard DIN EN ISO 4759-1 Surface finish Coating DIN 267-2 shall apply to the peak-to-valley heights of surfaces (see also Table 1, footnote c). DIN EN ISO 4042 applies with regard to electroplating. DIN EN ISO 10684 applies with regard to hot dip galvanizing. Surf
46、ace condition DIN EN 26157-1 applies with regard to limits for surface discontinuities. Acceptance inspection DIN EN ISO 3269 aDepending on the selected coating system, another tolerance position prior to the application of the coating may be necessary; see DIN EN ISO 4042 and DIN EN ISO 10684, for example.
