Description

Ojiyas makes many different types of unified thread gauges:

Ojiyas UN Thread Plug Gauge – Unified Fixed Pitch

Commonly used: With 4,6,8,12,16,20,28 & 32 standard thread per inch.

 

Ojiyas UNC Thread Plug Gauge – Unified Coarse

The most commonly used thread type for fasteners, General purpose inch gauging, lower tensile strength materials. Due to the inherent coarse pitch, the thread are deeper than UNF and easier to install without cross threading.

 

Ojiyas UNF Thread Plug Gauge – Unified Fine

External thread stronger in tension than coarse thread due to the lesser thread depth compared to UNC and it has finder tension adjustment and tighter tolerance. It is commonly used in the aerospace industry.

 

Ojiyas UNEF Thread Plug Gauge – Unified Extra Fine

Finer thread compared to UNF and it is used for very special application such as tapped in thin wall material and tapped holes material.

 

Ojiyas UNJC & UNJF Thread Plug Gauge

Similar thread form with UNC and UNF except that the outer thread has a larger root radius compared to UNC or UNF thread. This results in larger tensile area and smaller stress concentration.

Ojiyas makes many different types of unified thread gauges:

Ojiyas UN Thread Plug Gauge – Unified Fixed Pitch

Commonly used: With 4,6,8,12,16,20,28 & 32 standard thread per inch.

 

Ojiyas UNC Thread Plug Gauge – Unified Coarse

The most commonly used thread type for fasteners, General purpose inch gauging, lower tensile strength materials. Due to the inherent coarse pitch, the thread are deeper than UNF and easier to install without cross threading.

 

Ojiyas UNF Thread Plug Gauge – Unified Fine

External thread stronger in tension than coarse thread due to the lesser thread depth compared to UNC and it has finder tension adjustment and tighter tolerance. It is commonly used in the aerospace industry.

 

Ojiyas UNEF Thread Plug Gauge – Unified Extra Fine

Finer thread compared to UNF and it is used for very special application such as tapped in thin wall material and tapped holes material.

 

Ojiyas UNJC & UNJF Thread Plug Gauge

Similar thread form with UNC and UNF except that the outer thread has a larger root radius compared to UNC or UNF thread. This results in larger tensile area and smaller stress concentration.