Aussie Industrial · Fit Guide

Size Finder

Not sure what size you need? Measure your fitting, enter the numbers and we'll match it to the nominal size. Results are a guide — always confirm with a thread gauge or our team before ordering.

Thread gender
Male: across the thread crests. Female: across the crests inside the bore.

Enter a diameter to see matching BSP, NPT and metric sizes.

How to measure

Measuring Guide

OD

Male thread OD

  1. Use vernier calipers across the thread crests (the peaks).
  2. Measure at the full-diameter end of the thread, not the tapered tip.
  3. Enter the reading in mm — a 1/2" BSP male measures about 20.9 mm.
ID

Female thread ID

  1. Use the inside jaws of your calipers.
  2. Measure across the thread crests inside the port (smallest diameter).
  3. Select "Female" — we allow for thread depth automatically.
1 inch (25.4 mm)

Threads per inch / pitch

  1. Best: hold a thread pitch gauge against the thread until it sits with no gaps.
  2. No gauge? Lay a ruler along the thread and count crests over 25.4 mm (1").
  3. Metric pitch = distance in mm between two crests.
ID

Hose ID

  1. Cut the hose end square.
  2. Measure the inside bore, not the outside wall.
  3. Hose tails and camlock C/E fittings match the hose ID.
Lip OD (groove end)

Camlock adaptor OD

  1. Take the male (Type A, B, D or F) adaptor.
  2. Measure across the front lip that slides into the coupler — ahead of the groove.
  3. e.g. about 63 mm = 2" camlock.
PCD

Flange PCD & bolt holes

  1. Count the bolt holes.
  2. Even number of holes: measure centre-to-centre across two opposite holes = PCD.
  3. Shortcut: edge of one hole to the far edge of the opposite hole, minus one hole diameter.
  4. Also measure the flange OD.
OD

Pipe OD

  1. Measure across the outside of the pipe with calipers.
  2. Or wrap a tape round it and divide the circumference by 3.1416.
  3. Enter the OD — e.g. 60.3 mm = 50 NB (2").
Unsure?Call 0403 954 693 or email info@aussieindustrial.com.au with a photo and measurements.