Bordo 3/8" x 16 UNC 1.5" Chrome Button Die

This 3/8" x 16 UNC Chrome Button Die is designed for forming, restoring, and maintaining Unified National Coarse (UNC) external threads. Ideal for workshop, maintenance, and general engineering environments, these dies are widely used for producing reliable coarse-thread fastenings across a range of materials.

Key Features:

• Thread Standard: Unified National Coarse (UNC), a widely adopted imperial thread form used across the USA, Canada, and the UK.
• Versatile Use:
  • Suitable for chasing and cleaning damaged or worn UNC threads.
  • Can cut new male threads on non-ferrous metals and plastics.
• Material: Durable chrome alloy construction for general-purpose threading (not recommended for precision or critical applications).
• Thread Form Details:
  • UNC introduced in 1948 to standardise imperial thread forms.
  • 60° thread angle with a coarse pitch for improved durability and easy engagement.
  • Coarse threads provide superior resistance to stripping in lower-tensile materials such as aluminium, brass, bronze, and plastics.
  • Ideal where quick assembly/disassembly or tolerance of minor damage or corrosion is required.

Technical Specifications:

• Diameter (inch): 3/8
• Pitch (TPI): 16
• Thread Form: UNC
• Outside Diameter: 1.5"

Applications:

UNC button dies are commonly used in manufacturing, machinery repair, fabrication, automotive work, and general maintenance applications. Their coarse thread profile ensures strong, reliable fastening performance, especially in softer materials or environments requiring ease of assembly.