Bordo 10G x 24 UNC 1” Chrome Button Die

Split circular chrome alloy button dies are commonly used with a die stock handle for cutting or restoring external threads. They are suitable for chasing damaged threads as well as creating new male threads on non-ferrous metals and plastics. Chrome alloy dies are not suitable for producing precision, safety-critical, or high-tolerance threads.

The UNC thread form was introduced in 1948 to help standardise thread forms across the USA, Canada, and the UK. The thread profile is the same as metric threads and is described in the JIS B0206 standard. UNC threads are defined by their major diameter and the number of threads per inch (TPI).

UNC threads are widely used in the mass production of bolts, screws, and nuts. They perform well in lower tensile strength materials such as aluminium, brass, bronze, and plastics, offering excellent resistance to internal thread stripping. The coarse pitch also makes UNC threads suitable for quick assembly and disassembly, particularly in applications where corrosion or minor thread damage may occur.

Key Features & Benefits

10G diameter with 24 TPI UNC thread
1” OD chrome alloy split button die
Ideal for thread cleaning, repair, and general-purpose thread cutting
Standard UNC thread profile for compatibility with common fasteners
Durable chrome alloy construction for long service life
Suitable for aluminium, brass, bronze, and plastics
Designed for use with standard die stock handles

Technical Specifications

Thread Size: 10G
Pitch: 24 TPI
Thread Form: UNC
Outer Diameter: 1”
Material: Chrome Alloy
Type: Split Button Die

UNC threads are commonly used across general engineering and fabrication industries, particularly where ease of assembly, strong internal thread engagement, and durability in softer materials are required.