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4 references · 3 calculators · checked October 2026

Reference library

The charts we work from at the counter. Published in full, free to use.

Thread dimensions for 20 connection types, 242 crimp settings, 118 published pressure ratings and 80 defined terms. Every figure is an HTML table you can search, copy and cite — no PDFs, no sign-in, and each page says where its numbers come from.

Connection types charted
20
Crimp settings
242
Pressure ratings
118
Terms defined
80
Units
Inch · mm
Pressure
psi · bar
Standards
SAE · ISO · ASME
Format
HTML tables, no PDFs
Access
Free · no sign-in
Checked
October 2026

References

Four references, each one a table you can check a part against.

Built from the published standards and the maker’s own figures, and cross-checked against each other. Where the sources disagreed, the page says which one won.

  • SAE J514 · J1453 · J518 · ISO 228 · ISO 8434

    Thread chart

    Male and female thread diameters, pitch and seat for every common port and connector — measured in inches and millimetres, family by family.

    Connection types
    20
    Families charted
    10
    Units
    in · mm
    Open the thread chart
  • Maker’s published settings

    Crimp specifications

    Finished crimp diameter and die position for each hose and fitting series we supply, with a finder that narrows it to one row.

    Crimp settings
    242
    Hose types
    18
    Fitting series
    12
    Find a crimp setting
  • 4:1 on minimum burst · carbon steel

    Fitting pressure ratings

    Maximum working pressure by connection type and size, in psi and bar, and a calculator that rates a joint by its weaker end.

    Ratings published
    118
    Connection types
    13
    Units
    psi · bar
    Rate a joint
  • Written for this site

    Hydraulic glossary

    The words on a datasheet and at the counter — dash size, drop length, skiving, Code 62 — defined plainly, with what each is confused with.

    Terms defined
    80
    Cross-references
    142
    Format
    A–Z, linkable
    Browse the glossary

Calculators

For when the question is a conversion, not a lookup.

Three smaller tools that answer one question each.

Identifier

Thread identifier

Three questions — taper, thread angle, seat — to a fitting family.

Converter

Pressure converter

psi, bar and MPa, for datasheets that each use a different one.

Chart

Dash size chart

Dash number to inches and millimetres, with the two caveats that cause most ordering mistakes.

Still not sure

If the chart does not settle it, send us the part.

A photograph and two measurements are usually enough for us to name the fitting, the hose or the crimp setting, and quote the replacement the same day.

Or call +971 52 2477942

What to send

  • A photo of each end, with a rule or calipers in shot
  • The thread O.D. and the pitch, if you have a gauge
  • The text printed along the hose
  • What it connects to, and the working pressure