ABNT NBR ISO 2857 Versão Corrigida 1:2011
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

Standard No.

ABNT NBR ISO 2857 Versão Corrigida 1:2011

Release Date

2011

Published By

BR-ABNT

Replace

ABNT NBR ISO 2857:2011 ABNT NBR 14117:1998

Scope

This Standard specifies the manufacturing tolerances on the threaded portion of taps for producing the ISO metric threads of tolerances classes 4H to 8H and 4G to 6G as defined in ABNT NBR ISO 965-1 to 3 (excluding, consequently, classes 7G and 8G considered as usually produced with ground thread taps).

ABNT NBR ISO 2857 Versão Corrigida 1:2011 history

• 2019 BS EN 1762:2018 Rubber hoses and hose assemblies for liquefied petroleum gas, LPG (liquid or gaseous phase), and natural gas up to 25 bar (2,5 MPa). Specification
• 2017 BS EN 1762:2017 Rubber hoses and hose assemblies for liquefied petroleum gas, LPG (liquid or gaseous phase), and natural gas up to 25 bar (2,5 MPa). Specification
• 2004 BS EN 1762:2003 Rubber hoses and hose assemblies for liquefied petroleum gas, LPG (liquid or gaseous phase), and natural gas up to 25 bar (2,5 MPa) - Specification
• 0000 ABNT NBR 14117:1998