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Norm

ISO 965-4:1998

Ausgabedatum: 1998 12 20

ISO general purpose metric screw threads — Tolerances — Part 4: 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

This part 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 ha...
ZURÜCKGEZOGEN: 2021 07 06
Herausgeber:
International Organization for Standardization
Format:
Digital | 4 Seiten
Sprache:
Englisch
Aktuell Gültig:

This part 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 = 2(300 + 20P)

where

es is expressed in micrometers;

P is expressed in millimeters.

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.

NOTE If the tolerance class 6az is not specified the external screw threads are to mate with internal screw threads with tolerance position 6AZ if the products are centrifuged and with hot-dip galvanized internal screw threads with tolerance position 6AX if the products are not centrifuged.

ISO 965-4:2021
2021 07 06
ISO general purpose metric screw threads — Tolerances — Part 4: Limits of sizes for hot-dip galvaniz...
Norm
ISO 965-4:1998
1998 12 20
ISO general purpose metric screw threads — Tolerances — Part 4: Limits of sizes for hot-dip galvaniz...
Norm
Norm
ISO 965-4:2021
Ausgabedatum : 2021 07 06
ISO general purpose metric screw threads — Tolerances — Part 4: 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