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BSI BS 3409-2:1966

Specification for the tapping of holes to receive wire thread inserts (UNC and UNF threads) -- Diameters below ¼ in
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BSI BS 3409-2:1966

Specification for the tapping of holes to receive wire thread inserts (UNC and UNF threads) -- Diameters below ¼ in

PUBLISH DATE 1966
PAGES 26
BSI BS 3409-2:1966

This British Standard comprises three sections:

Section 1, which specifies limits of size for tapped holes to accommodate wire thread inserts to provide thread sizes from No. 2 to No. 12 UNC and UNF;

Section 2, which recommends screwing taps intended to produce holes to the limits of size specified in Section 1;

Section 3, which gives a recommended gauging system for checking the tapped holes.

Limits of size for tapped holes to accommodate wire thread inserts to provide thread sizes from No. 2 to No. 12 UNC inclusive and from No. 2 to No. 12 UNF inclusive. Recommendations for general dimensions and limits of size on the threaded portion of screwing taps intended to produce holes to the limits specified; details of a recommended gauging system for checking them.
SDO BSI: British Standards Institution
Document Number 3409-2
Publication Date Jan. 31, 1966
Language en - English
Page Count 26
Revision Level
Supercedes
Committee FME/9
Publish Date Document Id Type View
Jan. 31, 1966 BS 3409-2:1966 Revision