The European Standard EN has the status of a . ISO (upon which BS EN is based), altering clause 1. Standard [WITHDRAWN] DIN EN Mechanical properties of fasteners; bolts, screws and studs (ISO ); german version EN. Purchase your copy of BS EN , ISO as a PDF download or hard copy directly from the official BSI Shop. All BSI British.
|Published (Last):||21 December 2015|
|PDF File Size:||7.48 Mb|
|ePub File Size:||19.82 Mb|
|Price:||Free* [*Free Regsitration Required]|
This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. Regardless of the choice of test programme, all requirements of Table 3 shall be met.
It is the constant aim of BSI to improve the quality of our 28098 and services.
The marking is obligatory for all property classes, preferably on the top of the head by indenting or embossing or on the side of the head by indenting see Figure 7. Bolts, screws and nuts; — Part 2: Set screws and similar threaded fasteners not under tensile stresses; — Part 6: Maximum hardness values have been selected for reasons other than theoretical maximum strength 2089 e. Set screws and similar threaded fasteners not under tensile stresses  6.
Mechanical Properties – Steel Screws and Bolts ISO 898-1 EN 20898-1
B, Mn or Cr 0,15d 0,40 0, 0, 0, quenched and tempered Carbon steel quenched and tempered 0,25 0,55 0, 0, 9. These values if received from tests of full size bolts and screws will vary because of processing method and size effects. Ein British Standard, having Amendments issued since publication been prepared under the direction of the Engineering Amd.
NOTE 2 The thickness of the test plate should be greater than 2 d.
BS EN , ISO – Mechanical properties of fasteners. Bolts, screws and studs
It defines properties for sizes M1. Programme A is suitable for machined test pieces and for bolts with a shank area less than the stress area. In case of doubt, the German-language original shall be considered authoritative. Details and advice can be obtained from the Copyright Manager. idn
The full proof load shall be held for 15 s. Bolts, screws and studs for general requirements. In this case the height of the non-decarburized zone E shall be at least as specified in Table Nuts with specified proof load values — Fine pitch thread — Part 7: Help Center Find new research papers in: In the case of test programme A the surface discontinuity inspection is applied to test bolts before machining.
Screws & Bolts – Mechanical Properties
ISO is an international standard that defines mechanical and physical properties for metric fasteners. Contact the Information Centre. If it is not possible to determine the elongation after fracture due to the length of the bolt, the reduction of area after fracture shall be measured providing that Lo is at least 3 do. Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm. Nuts with specified proof load values — Coarse thread . The Vickers hardness measurements are made at the three points shown on Figure 6.
If marking on the unthreaded part is not possible, marking of property class only wn the nut end of the stud is allowed, see Figure Marking is required for hexagon and hexalobular head bolts and screws with nominal diameters d W 5 mm. Part 6 is the same ddin part 2 except for fine threaded nuts that range from M8 to M The bolt or screw shall meet the requirements for minimum tensile strength, either during wedge tensile testing or in a supplementary tensile test without a wedge, according to the values 02898 for the relevant property class before fracture occurs.
For property classes 8. For 200898 references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision.
These data shall rin be used as a test requirement. The minimum distance from the thread run-out of the bolt to the contact surface of the nut of the fastening device shall be d. Part 1 does not specify properties for fasteners that have head geometries that reduce the shear strength of the fastener, such as low head screws and countersunk heads.
The abscissae show the nominal tensile strength values, Rm, in newtons per square millimetre, while the ordinates show those of the minimum elongation after fracture, Amin, as a percentage. Set screws and similar threaded fasteners not under tensile stresses ISO Mechanical properties of fasteners — Part 7: Annex ZB rn Normative references to international publications with their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications.
Nuts with specified proof load values — Idn thread  5. Set screws and similar threaded fasteners not under tensile stresses . Figure 10 — Marking of studs The symbols in Table 16 are permissible as an alternative identification of property classes.
BS EN 20898-1:1992, ISO 898-1:1988
Bolts, screws and studs for special requirements. Click here to sign up. Complete decarburization up to the maximum specified in Table 3 cannot be detected by the hardness measurement method.
Table 208988 — Clock-face system for marking bolts and screws Property xin 3. The maximum value for G and the formulae for the minimum value for E are specified in Table 3.
Bolts, screws and studs with specified property classes — Sn thread and fine pitch thread  2. Remember me on this computer. Bolts, screws and studs ISO Table 14 — Marking symbols Property class 3. Vis et goujons und legiertem Stahl — Teil 1: If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained.
The chemical composition shall be assessed in accordance with the relevant ISO standards. Nuts with specified proof load values — Coarse thread; — Part 5: The test applies to bolts and screws with nominal thread diameters d u 3 mm as well as to short bolts and screws with nominal thread diameters 3 mm u d u 10 mm which cannot be subjected to a tensile test.