BSI BS 1580 PARTS 1 & 2 Unified Screw Threads Parts 1 and 2: Diameters Quarter of an Inch and Larger
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BSI BS 1580 PARTS 1 & 2 Document Information:
Title
Unified Screw Threads Parts 1 and 2: Diameters Quarter of an Inch and Larger
USTSchraubgewinde. Spezifikation. Durchmesser 3/16 Zoll und groesser
Filetages Unified. Specification. Diametres 3/16 et plus
British Standards Institution
Publication Date:
Jan 1, 1962
Scope:
Unified coarse thread series UNC 3/16 in to 4 in diameter; Unified fine thread series UNF 3/16 in to 11/2 in; Unified extra fine thread series UNEF 3/16 in to 111/16 in. Standard constant pitch series for a graduated system of diameter/pitch combinations. Basic and design forms. Tables of basic dimensions, limits and tolerances for all diameter/pitch combinations in UNC, UNF, UNEF and standard constant pitch series given for the three classes of internal and external threads. Bases of tolerances for Unified screw threads; five sizes below 3/16 in diameter for attachment purposes and for general use in aircraft appended. Evolved through international discussions between UK, Canada, USA. In accord with corresponding sections of American standard ASA B1.1-1960.
Keywords:
- Unified screw threads
- Thread forms
- Nuts
- Bolts
- Threads
- Dimensions
- Diameter
- Thread pitch
- Metal coatings
- Aircraft components
- Fits
- Dimensional tolerances
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