THREAD AND PLAIN GAUGES
THREAD AND PLAIN GAUGE TERMINOLOGY
THREADED COMPONENTS
PLAIN PLUGS AND RINGS
PLAIN DIAMETERS
TAPER GAUGES
SQUARE, HEXAGONAL AND SPHERICAL GAUGES GAUGES
PRECISION PIN SETS
THREAD GAUGES
Thread and thread gauge technology is a minefield to the uninitiated! Wessex Metrology is an acknowledged leader in the supply of screw thread gauges. We deliver a comprehensive range of standard sizes from stock, including metric M2 to M100, Tr, UNC, UNF, G, BSW, NPT, R-series and of course can advise on non-standard classes of fit, special thread forms and special designs on short lead times.
We represent Europe’s largest manufacturer of precision gauges; substantial investment in plant, equipment and measuring technology over a period of many years enables them to deliver gauges of the highest quality at very competitive prices.
THREAD AND PLAIN GAUGE TERMINOLOGY
Metric ISO-thread ISO 965
Gauge dimensions ISO1502
BSW and BSF threads BS 84
Gauge dimensions BS919
Cylindrical pipe threads DIN ISO228 Part1
Gauge dimensions DIN ISO 228 Part 2
ISO metric trapezoidal threads DIN 103
Tolerance zones group N (normal)
Gauge dimensions DIN 103 Part 9
Round thread DIN 405-1, 405-2
Tolerance zones group N (normal)
Gauge dimensions DIN 405-3
Unified inch screw threads BS1580
Tolerance zones group N (normal)
Gauge dimensions BS 919
THREADED COMPONENTS
ISO, UN Threads – BS3643, BS1580
Withworth Threads and G- Series BS84, BS2779
Trapezoidal – BS5436
Round Thread – DIN405
Metric Butress
Butress – BS165X
MJ and UNJ Threads BS6293, BS4084
PLAIN PLUGS AND RINGS
The ubiqutous Go/NoGo gauging system is the simplest and often most effective way of checking hole and shaft sizes. Available as:
- Plain cylindrical plug and ring gauges: 0.2mm to 250mm
- Setting rings: 1.5mm to 200mm, Class XX and Class X
We offer two levels of service : Standard Delivery within 3-4 weeks and FastTrak for urgent jobs.
UKAS Certificates are available with all these gauges.
All gauges are supplied in through-hardened toolsteel and some products are available in ceramic or tungsten carbide.
PLAIN DIAMETERS
Gauge Tolerance disposition – Plug Gauges
Gauge Tolerance disposition – Ring Gauges
This diagram shows the relationship between product tolerancing and gauge tolerancing. The practice in the UK is to apply tolerances in accordance with BS969:1982 but we can of course supply to other national and international standards.
TAPER GAUGES
Manufactured to national and ISO standards these are supplied in Toolsteel or Hardchrome.
- Taper plug and ring gauges
- Machine taper, morse taper
- Luer taper
We offer two levels of service : Standard Delivery within 3-4 weeks and FastTrak for urgent jobs.
UKAS Certificates are available with all these gauges.
SQUARE, HEXAGONAL AND SPHERICAL GAUGES
These gauges are custom built. Send us your design documentation or specifications and we can assess the optimum gauges for your application.
- Taper plug and ring gauges
- Square, hexagonal and spherical gauges
- Thread depth gauges
- Bevelled straight edges and squares
- Sine bars, X-Y tables
- UKAS Certificates are available with all these products
PRECISION PIN SETS
Pin sets are available in a variety of standard configurations and increments, usually supplied in special boxes to protect your investment. Special sets can be made up to your requirements.
Boxed sets of pins 0.1mm to 20mm diameter, tolerances from 0.5 micron.
All pins are through hardened toolsteel, precision lapped to either unilateral or bilateral tolerances. Pins can also be supplied in ceramic or tungsten carbide.
UKAS Certificates are available with all these gauges.