Gaugestools - Model UNS -Thread Gauges

Standard tolerance: Plug 2B &  ring 2A

• Classes 2A and 2B are the most commonly used for general applications, including production of nuts, screws, and bolts.
• Internal thread tolerance class: 1B?2B?3B;
• External thread tolerance class: 1A?2A?3A
• 3A 3B will be used when closer tolerance required.
• Material: GCr15
• For special gauges without stock, we can provide special custom production service,  one pc is also acceptable,

All our UNS thread ring gages and plug gages are manufactured compliance to standard: ASME B1.2

• Material:Oil hardened tool steel-Gcr15, high wear resistance.
• Hardness: 58-62 HRC
• Ring gages are solid; Plug gauges are Taperlock- double ends with one handle. our solid ring gages can be used directly, no need setting plug gages to test them in advance. The advantage of Taper-lock style is when one end worn out, one new end can be replaced quickly and easily.The handle and end in good condition can be used again.
• All gages are brand new
• Gage manufacturer ISO9001 certified
• gaugestools know the importance of controlling temperature and humidity when testing gages, the temperature will be 20 degree +- 0.5 degree, the humidity will be 45%-65%.
• Long form calibration certificate from ISO17025 accredited lab can be provided, but it need to be told in advance, and need extra costs.
• We can provide laser marking service on the gauges. For example, clents’ Logo.
• Delivery time: 3-5 days.We will send goods by express, Fedex, DHL or UPS. A tracking number will be sent to clients once shipped.
• all these gauges are fixed limit gauges, inspecting thread on a pass/ fail basis, not checking detailed size of thread.

How to order:

• Specify diameter, for example, 1/2″
• Specify TPI, for example, TPI 14
• Specify thread form, for example, UNS
• Specify ring gage or plug gage, ring gage for checking external thread, plug gauge for checking internal thread.
• Specify class of fit, for example: 3A
• Specify quantity
• After receiving above information, we will make an invoice and send money request, then clients can pay it.

Quality Policy:

At gaugestools, we strive to offer clients quality metric thread ring gages and plug gauges with competitive price and quick shipment. We not only strive to meet clients’ expectations, but also exceed clients’ expectations by continual improvements .

Return Policy:

We will exchange or refund in one week if clients found any products not quality enough or meet clients’ expectations. After receiving our products, once clients have anywhere not satisfied, please contact us at once, clients can send us Email, or contact us with livechat,  we will deal with clients’ problems in quick time, we are committed to providing 100% customer satisfaction.