BS 3409-2:1966
Current
The latest, up-to-date edition.
Specification for the tapping of holes to receive wire thread inserts (UNC and UNF threads) Diameters below ¼ in
Hardcopy , PDF
English
31-01-1966
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Co-operating organizations
Foreword
Section 1 - Tapped holes
1 Scope
2 Form of thread and limits of size
3 Identification
Section 2 - Screwing taps
4 General dimensions
5 Marking
6 Form of thread
7 Limits of sizes for cutting diameter
Section 3 - Gauging system
8 General
9 Design and general dimensions
10 Tolerances and limits of size
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.
| Committee |
FME/9
|
| DevelopmentNote |
Reviewed and confirmed by BSI, March 2013. (03/2013)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
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.
| DEFSTAN 02-862(PT1)/2(2007) : 2007 | FASTENERS - PART 1: GENERAL |
| DEFSTAN 02-862(PT1)/3(2011) : 2011 | NAVAL FASTENERS - PART 1: MATERIAL SELECTION AND USE |
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