Zylinderschrauben mit Schlitz; Produktklasse A

Supersedes October 1988 edltlon.

In keeping with current practice instandards published by the international Organization for Standardization(ISO), a comma has been used throughout as the decimal marker.

See Explanatory notes for connection withdraft International Standard ISO / DIS 1207 published by the InternationalOrganization for Standardization.

Dimensions in mm

1       Scope and field of application

This standard specifies requirements for M1 to 10 slotted cheese head screws assigned to product grade A. See DIN 962 (orthe standards referred to therein) for special screw type and finishes. If inspecial cases, screws are to comply with specification other than those givenin this standard (e.g. regarding property class or material). These shall beselected in accordance with the relevant standards.

2.  Dimension

Cheese head screw threaded up to the head ( specified in table 1 above dashed line)

Cheese head screw with unthreaded portionof shank (specified in table 1 below dashed line)1)

The shank diameter may be equal to thethread diameter (normal shank ) or approximately equalto the pitch diameter (reduced shank ), at the manufacturer’s discretion.

1)   If cheese head screws withlengths given below the dashed line are to be supplied with their shankthreaded up to the head, letter A shall be included in the designation, inaccordance with DIN 962.

                                                    Continued on pages 2 to 4

4       Designation

Designation of an M5 cheese head screw, oflength / (nominal size) = 20 mm assigned to property class 4.8:
Cheese head screw DIN 84-M5×20-4.8

DIN 962 shall apply for the designation oftype and finish, with additional information to be given on ordering.

DIN 6900 shall apply for screws withcaptive washers (screw assemblies). DIN 7500 Part 1, for thread rolling screwsand DIN 7513, for thread cutting screws.

The DIN 4000-2-1 tabular layout of article characteristics shall apply for screws as covered inthis standard.

Standardsreferred to

DIN 13 Part 13 ISO metric screw threads; series ofpreferred sizes for screws, bolts and nuts from 1 mm to 52 mm diameter and limits of size

DIN 13 Part 15 ISO metric screw threads; fundamentaldeviations and tolerances for screw threads of 1 mm diameter and larger

DIN 78      Thread ends and lengths of projection of bolt ends for ISO metric screwthreads in accordance with DIN 13

DIN 267 Part 1 Fasteners; technicaldelivery conditions; general requirements

DIN 267 Part 2 Fasteners; technicaldelivery conditions; design and dimensional accuracy

DIN 267 Part 5 Fasteners; technical delivery conditions;acceptance inspection (modified version of ISO 3269, 1984 edition)

DIN 267 Part 9 Fasteners; technicaldelivery conditions; electroplated parts

DIN 267 Part 11 Fasteners; technical delivery conditionswith addenda to ISO 3506; stainless and acid resistant steel components

Page 4 DIN 84

DIN 267 Part 18 Fasteners; technical deliveryconditions; nonferrous metal components

DIN 267 Part 19 Fasteners; technical deliveryconditions; surface discontinuities on bolts

DIN 962      Bolts, screws, studs and nuts; designations, type and designs

DIN 4000 Part 2 Tabular layouts of articlecharacteristics for screws and nuts

DIN 6900     Screw and washer assemblies

DIN 7500 Part 1 Thread rolling screws for ISO metricthreads; dimensions, requirements and testing

DIN 7513     Hexagon head and slotted head thread cutting screws; dimensions,requirements and testing

ISO 898 Part 1  Mechanical properties of fasteners;bolts, screws and studs

ISO 4759 Part 1 Tolerances for fasteners; bolts, screwsand nuts with thread diameters from 1,6 to 150mm; product grades A, B and C

Previous editions

DIN 83 Parts 1 and 2; 03.24; DIN 83: 11.38; DIN 84 Part1:08.21, 03.24, 01.37, 10.42; DIN 84 Part 2:08.21, 03.24, 04.43; DIN 84:10.42X,12.52, 04.64, 07.68, 10.70, 10.88.

Amendments

The following amendments have been made to the October1988 edition.

a)   For M3.5, M4 and M5 screws, k _min valueshave been corrected.

b)   w _min values have been amended.

c)   The mass given for M5 screws, 8mm long, has been amended.

d)   The standard has beeneditorially revised.

Explanatorynotes

Most of the screw dimensions specified inthis standard are the same as those specified in ISO 1207 (at present at thestage of draft), the only significant deviation that might impair their interchangeabilitybeing the head height, k, of screws smaller than M3 ISO heads are somewhathigher, which permits these heads to be used both for slotted and cross recessedhead screws. A standard on the latter is in preparation. There are also slightdifferences with regard to dimension w _min thesebeing, however, of no significance for the user of this standard.

The following tables compare dimensions k _min andw _min as specified here and the proposed revised edition of ISO 1207.

This standard will be superseded by ISO1207. once published, an appropriate transition periodbeing granted.

InternationalPatent Classification

F 16 B 35 / 00