BS 3409-2:1966

January 1966

Standard Current

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

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.

Main informations

Collections

BSI English standards

Publication date

January 1966

Number of pages

14 p.

Reference

BS 3409-2:1966

ICS Codes

25.100.50 Taps and threading dies

Print number

Sumary

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

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.

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