EN 22857:1989

Ground thread taps for ISO metric threads of tolerances 4H to 8H and 4G to 6G coarse and fine pitches - Manufacturing tolerances on the threaded portion (ISO 2857:1973 + A1:1984 +A2:1986)

Is valid for the short taps specified in ISO 529 as well as for any other kind of ground thread taps with the same diameters and pitches. The internal threads produced with those taps are conventionally designated by the simplified denomination of "nut" in agreement with the word used in ISO 965 for the general designation of all internal threads.

Geschliffene Gewindebohrer für metrische ISO-Gewinde mit Toleranzfeld 4H bis 8H und 4G bis 6G für Regel- und Feingewinde - Festigungstoleranzen des Gewindeteiles (ISO 2857:1973 + A1:1984 + A2:1986)

Tarauds à filets rectifiés pour filetages métriques ISO de tolérance 4H à 8H et 4G à 6G à pas gros et à pas fins - Tolérances d'exécution de la partie taillée (ISO 2857:1973 + A1:1984 + A2:1986)

Ce rapport technique de type 2 décrit un profil des couches basses qui inclut la sous-couche MAC (accès au support), la sous-couche PLS (signalisation physique) et les MAU (unités de raccordement au secteur). Le présent profil utilise les techniques de modulation FSK, qui offrent l'avantage d'une mise en oeuvre bon marché, une robustesse et une résistance au bruit et aux interférences.

Ground thread taps for ISO metric threads of tolerances 4H to 8H and 4G to 6G coarse and fine pitches - Manufacturing tolerances on the threaded portion (ISO 2857:1973 + A1:1984 +A2:1986)

General Information

• Status: Published
• Publication Date: 27-Sep-1989
• Withdrawal Date: 27-Mar-1990
• ICS: 25.100.50 - Taps and threading dies
• Technical Committee: CEN/SS I09 - Small tools
• Drafting Committee: CEN/SS I09 - Small tools
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 13-Oct-1999
• Completion Date: 13-Oct-1999
• Ref Project: SIST EN 22857:2002 - Ground thread taps for ISO metric threads of tolerances 4H to 8H and 4G to 6G coarse and fine pitches - Manufacturing tolerances on the threaded portion (ISO 2857:1973 + A1:1984 +A2:1986)

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Ground thread taps for ISO metric threads of tolerances 4H to 8H and 4G to 6G coarse and fine pitches - Manufacturing tolerances on the threaded portion (ISO 2857:1973 + A1:1984 +A2:1986)Geschliffene Gewindebohrer für metrische ISO-Gewinde mit Toleranzfeld 4H bis 8H und 4G bis 6G für Regel- und Feingewinde - Festigungstoleranzen des Gewindeteiles (ISO 2857:1973 + A1:1984 + A2:1986)Tarauds a filets rectifiés pour filetages métriques ISO de tolérance 4H a 8H et 4G a 6G a pas gros et a pas fins - Tolérances d'exécution de la partie taillée (ISO 2857:1973 + A1:1984 + A2:1986)Ground thread taps for ISO metric threads of tolerances 4H to 8H and 4G to 6G coarse and fine pitches - Manufacturing tolerances on the threaded portion (ISO 2857:1973 + A1:1984 +A
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