Ring gauges used to check external thread. Plug gauges used to check internal thread GO & NOGO, RH(right hand) & LH(left hand) available Metric, United Inch( UNEF, UNF, UNC, UN, UNS), Stub ACME, ACME, BSPP, PSPT, NPT, Trapezoidal (Tr), and Whitworth thread gauges, etc. Material: GCR15 Hardness: 58-65 HRC Tolerance: +/-0.001mm~+/-0.0025mm Certificate: Factory test Data or offical certificate Welcome Customized
Type | Series | Measuring range | Standard Tolerance |
Metric gauge | M | M1~M300 | 6g,6H,7g,7H |
US Units gauge | UN UNC UNF UNEF UNS NPSC NPSM NPSH NPSF NPSI NPSL NH STI | 0~12'' | 2A,2B |
Jap Units gauge | PT | 0~12'' | 2A,2B |
Imperial standard gauge | BSW BSF | 0~12'' | 2A,2B |
Taper gauge | NPT NPTF Z BKG R RB Rc RP PT ZG WKG BSPT ANPT PTF | 0~6'' | 2A,2B |
Trapezoidal gauge | Tr ACME STUB-ACME | 0~6'' | 2G,3G,4G |
other | API G PF PS BSP ST BSPP DIN spline gauge | 0~6'' | |
High precision thread ring gauge ring gages
Description:
Thread ring gauges are used to check the outside major diameter and pitch diameter limits on threaded parts
Like many other thread gages, these gages use a GO and NO GO method to determine if the threads fall within the tolerance or the class of fit. Thread ring gages are quite simple to use; if the GO end screws on, and the NO GO end will not screw on past three complete turns, then the part is within tolerance
Thread Ring gages are available in Straight Pipe and Taperpipe styles
Material :
Made of high performance bearing steel GCR15 , high hardenability, high hardness and fatigue strength, good dimensional stability, and SKD11 material are availiable
Tolerance:
Thread tolerance class: 4,5,6,7,8 ,Thread tolerance external thread g, h
Quality Assurance:
Each gages is rigorously tested to ensure that the dimensional data is qualified before leaving the factory, If you still need a calibration certificate from a third-party laboratory, please let us know in advance, this need extra cost
What Thread Ring Checks:
GO gage checks the maximum minor diameter and the maximum pitch diameter size in a part
NO-GO gage checks for the hole not to exceed the minimum pitch diameter size on a part