BSPT BRITISH STANDARD PIPE TAPER BUTTON DIE

BSPT BRITISH STANDARD PIPE TAPER BUTTON DIESutton Tools manufactures premium BSPT (British Standard Pipe Taper) button dies designed to cut new male external threads on tapered pipes or fittings. These dies are standard tools for trade, industrial, and plumbing maintenance applications. Thread Specification (1 8" x 28 TPI BSPT): Nominal Pipe Size: 1 8" (Note: This refers to the inner bore diameter of the pipe it is meant for, not the actual outer physical dimension of the thread). Pitch: 28

Sutton Tools manufactures premium BSPT (British Standard Pipe Taper) button dies designed to cut new male/external threads on tapered pipes or fittings. These dies are standard tools for trade, industrial, and plumbing maintenance applications.

• Thread Specification (1/8" x 28 TPI BSPT):
  • Nominal Pipe Size: 1/8" (Note: This refers to the inner bore diameter of the pipe it is meant for, not the actual outer physical dimension of the thread).
  • Pitch: 28 Threads Per Inch (TPI).
  • Thread Form: BSPT (British Standard Pipe Taper, also referred to as Rc or R form). It features a 55-degree thread angle and a 1:16 taper structural design to create liquid-tight mechanical seals when paired with a matching female thread.
• Physical Tool Dimensions:
  • Outer Diameter (OD): 2" (50.8 mm).
  • Shape: Solid round circular design. It features precision-machined locating dimples on its outer rim to align perfectly with the locking screws of a standard guide handle.
• Material Composition & Finish:
  • Base Metal: High-grade Carbon Alloy Steel.
  • Finish: Bright, uncoated finish to minimize friction and prevent material clogging during operation.
• Application Limits:
  • Optimized Materials: Designed strictly for non-ferrous metals (brass, copper, aluminum), mild carbon steels, and structural plastics.
  • Critical Restrictions: According to Sutton Tools' engineering guidelines, carbon steel dies are classified for general-purpose workshop maintenance, plumbing clean-up, and DIY jobs. They are not suitable for cutting high-tensile stainless steel, precision production environments, or high-pressure, critical-safety structural piping.