ISO 2306:1972

Drills for use prior to tapping screw threads

STANDARD published on 1.7.1972

English -
electronic design (pdf) (67.20 USD)

English -

Print design (67.20 USD)

French -

electronic design (pdf) (67.20 USD)

French -

Print design (67.20 USD)

The information about the standard:

Designation standards: ISO 2306:1972
Publication date standards: 1.7.1972
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: International technical standard
Category: Technical standards ISO

Annotation of standard text ISO 2306:1972 :

Description / Abstract: Specifies the sizes of these drills for ISO metric threads (tables 1 and 2). ISO inch threads (tables 3 and 4) and pipe threads (tables 5 and 6). Applies to screw threads of normal length of engagement, the drill diamter being approximately equal to the nominal diameter of the thread minus the pitch. The sizes (except for those sizes indicated by an asterisk) have been selected from ISO 235 and are to be used in the future.