RoBox Design

Garden Tap Connector - M30 x 1.5 Metric - Suitable for Metric Thread Taps - Farmers Tap - Large Outside Tap

RoBox Design RBAF-M30 M30x1.5 Garden Tap Connector retail packaging
Close-up of brass M30 tap connector showing hose barb with black O-ring seal
Rear view of M30x1.5 tap connector showing internal metric thread and knurled grip
Measuring M30x1.5 tap outlet thread diameter with manual caliper
M30x1.5 metric thread on farmers tap with thread pitch gauge showing 1.5mm pitch
M30 tap connector with white spacer washer and brass body on farmers tap
RoBox Design

Garden Tap Connector - M30 x 1.5 Metric - Suitable for Metric Thread Taps - Farmers Tap - Large Outside Tap

M30x1.5 METRIC BRASS TAP CONNECTOR FOR FARMERS TAPS & LARGE OUTSIDE TAPS

Have you tried a 7/8 BSP connector and it does not fit? You turn it on by hand, seems to fit and then binds after a turn or two?

Most large agricultural and farmers taps (often stamped “3/4” on the body) actually have a 7/8 BSP thread. However, in some cases this does not fit - if this happens to you then you need a metric  M30 connector

This RoBox Design M30x1.5 Garden Tap Connector is the solution. It has an internal M30x1.5 female thread that screws directly onto your tap’s male M30 outlet. The other end features a robust hose quick connector with O-ring seal, allowing you to connect any standard UK garden hose quickly and securely.

IF IN DOUBT, SELECT THE 7/8 CONNECTOR AS THIS IS BY FAR THE MOST POPULAR SIZE Garden Tap Connector - 7/8 BSP - Suitable for Farmers Tap

FARMERS TAP METRIC HOSE FITTING – BUILT FOR REAL-WORLD USE

  • Solid brass construction for strength and corrosion resistance
  • Internal M30 × 1.5 metric thread (parallel)
  • Hose quick connect integrated O-ring for reliable leak-free connection
  • Knurled grip for easy hand-tightening
  • Includes washer for face sealing against the tap
  • Compatible with standard garden hoses and popular quick-connect systems (Hozelock, Gardena, etc.)

How to check if you need the M30 version

Measure the outlet thread on your tap:

  • Major diameter ≈ 30 mm
  • Pitch = 1.5 mm (use a thread pitch gauge)

If it matches, this is the correct connector. The “3/4” marking on most farmers taps usually refers to the inlet size, not the hose outlet thread.

Important compatibility note

This connector is for M30x1.5 metric thread taps only.

If your tap has a 7/8 BSP (G parallel) outlet thread, please use our sister product:
Garden Tap Connector - 7/8 BSP - Suitable for Farmers Tap

Technical Specifications

SpecificationDetails
ThreadM30 × 1.5 (metric coarse, parallel – ISO metric)
MaterialSolid brass
SealO-ring on hose barb + face washer
Hose CompatibilityStandard 1/2" and 3/4" garden hose (clip or push-fit)
FinishNatural brass
BrandRoBox Design (RBAF-M30)

What’s in the box

1 × M30x1.5 brass tap connector with O-ring and washer.

Installation

  1. Clean the tap outlet thread.
  2. Screw the connector on hand-tight (M30 female end onto tap male thread).
  3. Attach your garden hose to the barb end and secure with a clip if needed.
  4. Turn on the tap and check for leaks.

Bulk Buying Discounts

Quantity PurchasedPrice (inc VAT)
3 +£10.92
5 +£10.69
10 +£10.36

Bulk prices shown are per unit. Perfect for farmers, agricultural suppliers, and trade customers.

Why choose RoBox Design?
We specialise in hard-to-find tap connectors for UK farmers, agricultural, and large garden taps. Our connectors are engineered to solve real problems that generic DIY-store fittings can’t fix.

⚠️ Important Size Warning – Please Measure Your Tap Thread

This M30x1.5 connector will ONLY fit taps with an M30 × 1.5 metric thread on the outlet.

Many large farmers taps and agricultural bib taps are stamped “3/4”, but this usually refers to the inlet size. The outlet thread can be either:

  • M30x1.5 metric (this product), or
  • 7/8 BSP (use our sister product instead)

How to check before ordering:

  • Measure the outside diameter of the thread on your tap – it should be approximately 30 mm.
  • Use a thread pitch gauge – it must read 1.5 mm pitch.

If your tap has a 7/8 BSP thread instead, please order the correct version here:
Garden Tap Connector - 7/8 BSP – Suitable for Farmers Tap

Ordering the wrong size is the most common reason for returns. Please double-check your thread size before purchasing.

£0.00 ex VAT
£9.38 ex VAT
£11.26 inc VAT
bulk savings

QTY


RoBox Design RBAF-M30 M30x1.5 Garden Tap Connector retail packaging

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Bulk Buying Discounts

close
Quantity PurchasedPrice
3 - 4£10.92
5 - 9£10.69
10 +£10.36