Title: ISO general purpose metric screw threads. Tolerances. Limits of sizes for hot-dip galvanized external screw threads to mate with internal screw threads tapped with tolerance position H or G after galvanizing



ISO 965-4:1998 of ISO 965 specifies deviations and limits of sizes for pitch and crest diameters for ISO general purpose metric external screw threads conforming to ISO 262 having a basic profile according to ISO 68-1.

External screw threads according to this part of ISO 965 are intended to mate with internal screw threads tapped with tolerance position H or G after hot dip galvanizing.

The limits of sizes for the tolerance quality specified are derived from tolerances specified in ISO 965-1 and the fundamental deviations according to the following formula:

esaz = -(300 + 20P)

where

es is expressed in micrometres;

P is expressed in millimetres.

Products made with thread tolerances in accordance with this part of ISO 965 may show failure at lower ultimate tensile loads than those specified in ISO 898-1 due to reduction of the stress area.

External screw threads with thread tolerances according to this part of ISO 965 must not be mated with internal screw threads with thread tolerances according to ISO 965-5 because such combinations will create severe risk for thread stripping.

Quelle: 130114/2006-10-31

You have no rights to post comments

Related Articles

Iso 965-3 1998 ■■■■■■■■■■
Iso 965-3 1998: Title: ISO general purpose metric screw threads. Tolerances. Deviations for constructional . . . Read More
Iso 965-1 1998 ■■■■■■■■■■
Iso 965-1 1998: Title:ISO general purpose metric screw threads. Tolerances. Principles and basic data . . . Read More
Iso 68-2 1998 ■■■■■■■
Iso 68-2 1998: Title: ISO general-purpose screw threads Basic profile Part 2: Inch screw threads ISO . . . Read More
Iso 286-2 1988 ■■■■■■■
Iso 286-2 1988: Title: ISO system of limits and fits Part 2: Tables of standard tolerance grades and . . . Read More
Iso 1461 1999 ■■■■■
Iso 1461 1999: Title: Hot dip galvanized coatings on fabricated iron and steel articles. Specifications . . . Read More
Iso 11562 1996 ■■■■■
Iso 11562 1996: Title: Geometrical Product Specifications (GPS) Surface texture: Profile method Metrological . . . Read More
Iso 16642 2003 ■■■■■
Iso 16642 2003: Title: Computer applications in terminology -Terminological markup framework ISO 16642:2003: . . . Read More
Iso 1012 1998 ■■■■■
Iso 1012 1998: Title: Photography. Films in sheets and rolls for general use. Dimensions ISO 1012:1998 . . . Read More
Tolerance ■■■■■
In the context of quality management, tolerance refers to the acceptable deviation from a specified standard . . . Read More
37KW 15-60hz VSD Reliable compressor supplier/Shanghai rotorcomp at top500.de■■■■
37KW 15-60hz VSD Reliable compressor supplier/Shanghai rotorcomp: We released new VSD compressor with . . . Read More