Bordo 7/16" x 18 BSF 1" Chrome Button Die
$34.32
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Bordo 7/16" x 18 BSF 1" Chrome Button Die
$34.32
This 7/16" x 18 BSF Chrome Button Die is designed for cutting, restoring, and cleaning British Standard Fine (BSF) external threads. Split circular chrome alloy button dies are typically used with a die stock handle, making them ideal for threading applications in confined or hard-to-reach areas.
Key Features:
- Thread Standard: British Standard Fine (BSF), a finer-pitch development of the British Standard Whitworth (BSW) thread system.
- Versatile Use:
- Acts as a thread chaser for restoring damaged or contaminated threads.
- Capable of cutting new male threads on non-ferrous metals and plastics.
- Material: Chrome alloy construction suitable for general-purpose threading (not recommended for precision, structural, or safety-critical applications).
- Thread Form Details:
- Finer thread pitch provides increased tensile stress area compared to coarse threads of the same diameter.
- Improved resistance to thread stripping under higher loads.
- Ideal for applications involving limited thread engagement or components with thin walls.
- BSF introduced in 1908 and standardised under BS84:1956.
Technical Specifications:
- Diameter (inch): 7/16
- Pitch (TPI): 18
- Thread Form: BSF
Applications:
BSF threads are widely used in precision engineering, automotive restoration, machinery maintenance, and situations requiring strong, fine-thread fasteners. This button die is ideal for producing or repairing external BSF threads on compatible materials.