Statements (25)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:screw_thread_standard
|
| gptkbp:abbreviation |
gptkb:BSW
|
| gptkbp:countryOfOrigin |
gptkb:United_Kingdom
|
| gptkbp:form |
rounded crests and roots
|
| gptkbp:historicalSignificance |
first national screw thread standard
|
| gptkbp:introduced |
gptkb:Joseph_Whitworth
|
| gptkbp:introducedIn |
1841
|
| gptkbp:relatedStandard |
gptkb:British_Standard_Fine
gptkb:British_Standard_Pipe |
| gptkbp:replacedBy |
gptkb:ISO_metric_thread
|
| gptkbp:standardizedBy |
gptkb:British_Standards_Institution
|
| gptkbp:threadAngle |
55 degrees
|
| gptkbp:threadPitchUnit |
threads per inch
|
| gptkbp:usedFor |
nuts
bolts fasteners |
| gptkbp:usedIn |
automotive industry
engineering railways |
| gptkbp:bfsParent |
gptkb:Whitworth's_Rule
gptkb:Whitworth_screw_thread gptkb:Whitworth_thread gptkb:Unified_Thread_Standard |
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
British Standard Whitworth
|