Since 1908 this thread, in conjunction with BSW (British Standard Whitworth) has been the mainstay of British Engineering, and was used when finer pitches were required.
Angle of thread = 55 degrees
British Standard Fine (BSF)
A finer pitch series, analogous to the American Unified Fine (UNF), although - unlike the case of BSW/UNC - with none of the pitches in common with UNF. Many motorcar and motorcycle manufacturers commonly used a lot of BSF threads.
| Diameter Inches |
inches |
Core Diameter |
||
|---|---|---|---|---|
(3.97 mm) |
||||
(4.6 mm) |
||||
(5.3 mm) |
||||
(6.75 mm) |
||||
(8.2 mm) |
||||
(0.3819 inch) |
||||
(11.11 mm) |
||||
(12.7 mm) |
||||
(0.5512 inch) |
||||
(0.6102 inch) |
||||
(0.6594 inch) |
||||
(19.84 mm) |
||||
(0.8957 inch) |
BRITISH
TOOLS & FASTENERS, LLC
7696 ROUTE 31, LYONS NY 14489
sales@britishfasteners.com
TEL- 315 946 9400 FAX - 315 946 9344
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