Georg Fischer Black Iron Backnut Nut BSPP 3/8in

View this category
Bulk discount available

Subtotal (1 pack of 10 units)*

£17.29

(exc. VAT)

£20.75

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • Plus 300 unit(s) shipping from 27 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
Per Pack*
10 - 40£1.729£17.29
50 - 90£1.656£16.56
100 - 240£1.62£16.20
250 +£1.587£15.87

*price indicative

RS Stock No.:
624-5552
Mfr. Part No.:
770312103
Brand:
Georg Fischer
Find similar products by selecting one or more attributes.
Select all

Brand

Georg Fischer

Fitting Type

Nut

Thread Standard 1

BSPP

Thread Size 1

3/8in

Thickness

8mm

Finish

Black

Inner Diameter

3/8in

RoHS Status: Exempt

COO (Country of Origin):
AT

Back Nut - Recessed - BSPP


This popular brand of backnuts are highly durable and have great temperature resistance and therefore can be used safely in a very broad field of applications.

Note

intermediate pressure rating at temperature between 120°C and 300°C can be obtained by linear interpolation; hot dip galvanised fittings should not be used below -10°C.


Malleable Fittings – Plugs & Nuts


George Fischer malleable iron pipe fittings are to BS143/1256, ISO49 and threads (taper male and parallel female) are to BS21, ISO7/1. The fittings are available self-colour (black) or hot dip galvanised finish to BS729 for increased corrosion resistance. Pressure rating is 25 bar at service temperature -25°C to +120°C and 20 bar at 120°C to 300°C.,Crane Fluid Systems straight pipe fittings are available self-colour (black) or galvanised finish, with taper internal and external pipe threads to BS21 and ISO7 for pressure-tight joints. They can be used with BS1387 steel tube for air, gas, steam and water services. Pressure rating is 25 bar at service temperature -20°C to +120°C and 20 bar at 120°C to 300°C.

Related links