1、August 2006DEUTSCHE NORM English price group 5No 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!,wJ“9842539
2、www.din.deDDIN 653Knurled thumb screws, low typeRndelschrauben, niedrige FormSupersedesDIN 653:1986-09www.beuth.deTranslation by DIN-Sprachendienst.In case of doubt, the German-language original should be consulted as the authoritative text.Document comprises 5 pages10.07DIN 653:2006-08 2 Foreword T
3、his standard has been prepared by the Normenausschuss Mechanische Verbindungselemente (Fasteners Standards Committee), Technical Committee NA 067-03-05 AA Verbindungselemente mit Sonderformen. The DIN 4000-160-4 tabular layout of article characteristics shall apply to screws covered in this standard
4、 Amendments This standard differs from DIN 653:1986-09 as follows: a) References have been updated. b) Knurl pitches have been specified. c) The standard has been re-structured. d) In Table 1, thread size M3,5 has been dropped. e) Clause 5 “Technical delivery conditions” has been completely revised
5、 Previous editions DIN 652: 1924-03 DIN 653: 1924-03, 1943-10, 1953-07, 1963-06, 1971-01, 1986-09 1 Scope This standard specifies dimensions and technical delivery conditions for M1 to M10 knurled thumb screws, low type. 2 Normative references The following reference documents are indispensable for
6、 the application of this document. 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 undercuts for ISO metric screw threads as in DIN 13 series DIN 82:19
7、73-01, Knurls DIN 267-6, Fasteners Technical delivery conditions Design and tolerances for product grade F fasteners DIN 962, Designation system for fasteners DIN 4000-160, Tabular layouts of article characteristics for fasteners with external thread DIN EN 10087, Free-cutting steels Technical deliv
8、ery conditions for semi-finished products, hot-rolled bars and rods DIN EN 10277-3, Bright steel products Technical delivery conditions Part 3: Free-cutting steels DIN 653:2006-08 3 DIN EN 12476, Phosphate conversion coatings of metals Method of specifying requirements DIN EN 26157-1, Fasteners Surf
9、ace discontinuities Bolts, screws and studs subject to general requirements DIN EN 28839, Mechanical properties of fasteners Nonferrous metal bolts, screws, studs and nuts DIN EN ISO 3269, Fasteners Acceptance inspection DIN EN ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel
10、 fasteners Part 1: Bolts, screws and studs DIN EN ISO 4042, Fasteners Electroplated coatings DIN EN ISO 4753, Fasteners Ends of parts with external ISO metric screw thread DIN EN ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and fit bolts Product grades A, B and C DIN ISO 965-1,
11、ISO general purpose metric screw threads Tolerances Part 1: Principles and basic data DIN ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts 3 Dimensions Screw dimensions shall be as given in Figure 1 and Table 1. Surface roughness, Rz25 (Rz16) Type A: Threaded up to the head
12、 (for sizes M2) Type B: With unthreaded portion of shank and thread undercut (for sizes M2) (other dimensions as for type A) Key 1 Type RAA straight knurl as in DIN 82 2 End chamfered (CH) or rounded (RN) as in DIN EN ISO 4753 3 DIN 76 A thread undercut a Length of incomplete thread, u 1,5 P. Figure
13、 1 Dimensions of knurled thumb screw (notation) DIN 653:2006-08 4 Table 1 Screw dimensions Dimensions in millimetres Thread size d M1 M1,2 M1,4 M1,6 M2 M2,5 M3 M4 M5 M6 M8 M10 Pa0,25 0,25 0,3 0,35 0,4 0,45 0,5 0,7 0,8 1 1,25 1,5 a max. 0,75 0,75 0,9 1,05 1,2 1,35 1,5 2,1 2,4 3 3,75 4,5 c Edges chamf
14、ered 0,3 0,3 0,4 0,4 0,5 0,6 0,8 Nominal size 5,5 6 7 7,5 9 11 12 16 20 24 30 36 max. 5,74 6,24 7,29 7,79 9,29 11,35 12,35 16,35 20,42 24,42 30,42 36,5 dkmin. 5,26 5,76 6,71 7,29 8,71 10,65 11,65 15,65 19,58 23,58 29,58 35,5 max. (nominal size) 2,00 2,50 3,00 4,00 5,00 6,00 8,00 10,00 dsmin. 1,86 2,
15、36 2,86 3,82 4,82 5,82 7,78 9,78 eb 1,5 2 2 3 3 4 5 6 max. 1,50 1,50 2,00 2,00 2,00 2,50 2,50 3,5 4,0 5,0 6,0 8,00 k min. 1,25 1,25 1,75 1,75 1,75 2,25 2,25 3,2 3,7 4,7 5,7 7,64 r 0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 1 1 2 2 Knurl pitch 0,5 0,5 0,5 0,5 0,5 0,6 0,6 0,6 0,6 0,6 0,6 0,8 lbNominal size min.
16、max. Mass (7,85 kg/dm3) in kg per 1 000 unitsc 2 1,9 2,1 0,228 0,347 3 2,9 3,1 0,293 0,353 0,632 0,78 4 3,9 4,1 0,297 0,36 0,641 0,792 1,07 5 4,8 5,2 0,301 0,366 0,65 0,804 1,09 1,95 6 5,8 6,2 0,305 0,373 0,659 0,816 1,11 1,98 2,47 8 7,8 8,2 0,383 0,676 0,84 1,14 2,04 2,56 6,1 10 9,7 10,3 0,694 0,86
17、4 1,18 2,1 2,64 6,25 11,1 12 11,7 12,3 0,888 1,22 2,16 2,73 6,4 11,3 19,8 (14) 13,7 14,3 1,25 2,22 2,82 6,55 11,5 20,1 16 15,7 16,3 1,28 2,28 2,91 6,7 11,7 20,4 39 (18) 17,7 18,3 2,34 3 6,85 11,9 20,7 39,6 20 19,6 20,4 3,1 7 12,1 21 40,2 73,5 (22) 21,6 22,4 7,15 12,3 21,3 40,8 74,5 25 24,6 25,6 7,37
18、 12,6 21,8 41,7 76 (28) 27,6 28,4 12,9 22,3 42,6 77,5 30 29,6 30,4 13,2 22,6 43,2 78,4 (32) 31,5 32,5 43,8 79,8 35 34,5 35,5 44,4 80,9 (38) 37,5 38,5 82,8 40 39,5 40,5 83,4 Bracketed sizes should be avoided if possible. Lengths exceeding 40 mm shall be graded in 5 mm steps. Knurled thumb screws are
19、generally manufactured in sizes for which a value of mass has been specified. aThread pitch. bFor lengths above the stepped line, e and, as a consequence also ds, equal zero. cThe values of mass are guideline values for knurled thumb screws made of steel. 4 Special design features Where knurled thum
20、b screws of sizes d M2 are to be supplied threaded up to the head, this shall be indicated by including the letter A in the designation (see example of designation given in clause 6). If knurled thumb screws are manufactured in two parts, these shall be joined so as to ensure that the same torque wi
21、ll be transmitted as in the case of one-piece knurled thumb screws of the same thread size. DIN 653:2006-08 5 5 Technical delivery conditions Table 2 Technical delivery conditions Material Steel Stainless steel Nonferrous metal General requirements As specified in DIN ISO 8992. Tolerance class 6g Th
22、read Standard DIN ISO 965-1 Property class (material) St A1 A2 CU3 Mechanical propertiesaStandards DIN EN 10087 DIN EN 10277-3 DIN EN ISO 3506-1bDIN EN 28839bProduct grade M1,4: F M1,6: A Limit deviations and geometrical tolerances Standards DIN 267-6, DIN EN ISO 4759-1 As processed. Plain Plain Sur
23、face finish DIN EN ISO 4042 shall apply with regard to electroplating. DIN EN 12476 shall apply with regard to phosphating. DIN EN ISO 4042 shall apply with regard to electroplating. Surface discontinuities DIN EN 26157-1 Acceptance inspection DIN EN ISO 3269 shall apply with regard to acceptance in
24、spection. a Calculation of tensile strength shall be based on the smallest stress area resulting from the undercut. b For screws made of stainless steel or nonferrous metal, verification of compliance with the mechanical properties specified is not required. 6 Designation EXAMPLE 1 Designation of an
25、 M5 knurled thumb screw, low type, with a length, l (nominal size), of 20 mm, made of steel (St): Knurled thumb screw DIN 653 M5 20 St EXAMPLE 2 Designation of an M5 knurled thumb screw, low type, threaded up to the head (A), with a length, l (nominal size), of 20 mm, made of steel (St): Knurled thumb screw DIN 653 AM5 20 St Designation details for special design features are given in DIN 962.
