Gages Features:
- UNS thread gauge is Unified Special Pitch thread gauge; UNEF thread gauges is Unified National Extra Fine thread gauge; UNF thread gauge is UNIFIED NATIONAL FINE thread gage; UNC thread gage is Unified National Coarse thread gage with 60 degree thread angle; UN thread gauge is Unified Constant Pitch thread gauge.
- Application of Unified Thread Working Plug Gauge: Comprehensive inspection of unified internal threads specified in ANSI B1.1-1982 and FED-STD-H28, H28/3 (1978)
- ANSI unified thread working plug gauge inspection environment: standard temperature 20°C ± 1°C, standard condition measurement force is zero.
- Unified Thread Working Plug Gauge Inspection Method: The length measuring instrument uses the “three-needle method” to detect a single mean diameter. The universal tool microscope can detect pitch, half angle, minor diameter, and clearance groove.
How to Use?
The internal thread inspection of the product should use a qualified working plug gauge that meets the relevant provisions of the JB/T 10865 standard. To reduce disputes during inspection and acceptance, it is recommended that the manufacturer, inspector, and acceptor use the same qualified gauge. If it is difficult to use the same qualified gauge:
- Manufacturers should use new or minimally worn go-end plug gauges and stop-end plug gauges with wear close to the wear limit; inspectors and acceptors should use through-end plug gauges close to the wear limit and new or minimally worn stop-end plug gauges.
- Go-end (T) thread plug gauges have a full profile and should be screwed in when used to inspect the working pitch and major diameters of a product’s internal threads.
- Stop-end (Z) thread plug gauges have a truncated profile and should be screwed in when used to inspect a single pitch diameter of a product’s internal threads. The screwing should not exceed two thread pitches.
- A working plug gauge used to determine the acceptance of a product’s internal threads is considered acceptable if it meets the applicable standard.
Gages Certification:
Long form calibration certificate from ISO17025 accredited lab can be provided, but it need to be told in advance, and need extra costs.
Special Order:
1) We also can provide custom production service for special metric thread gages, for example, Special diameter, special pitch, pre-plated and left hand etc. Usually we need 3~4 weeks to finish special ring gauges, and ten days to finish special plug gages. Only one pc is acceptable.
2) Super Size thread Gages is available, till to Max Size: 1000 mm ,come with long form calibration certificate.
3) We can provide laser marking service on the gauges. For example, clents’ Logo.
4）We can provide full parameter working ring gauge with gage inspection report according to order requirements. But the prices will be requested.
Please Contact: sales@gagedepot.com
Expedited shipping service: We will send goods by express, Fedex, DHL or UPS, clients can receive goods in 3-5 days.
