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Lock Nut 2-1/2" BSP Hex (Brass Hexagonal Locking Nut)

Maestrini Brass Hexagonal Lock Nut (2-1/2" BSP Female)

Part No. 407309

7.72 You pay €10.93 Incl VAT You pay €9.11 Excl VAT

RRP €12.15 €10.12

Save €1.22 (10.1%) Save €1.01 (10.0%)

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Overview
Brand Maestrini
Country of Origin Italy
Construction Brass
Thread Size 2-1/2" BSP Female
Thread Gender Female
Width 91mm
Depth 12mm (1/2")
Pressure Rating 232 PSI (16 Bar)
Description

The Maestrini hexagonal 2-1/2" BSP female lock nut measures 91mm by 12mm and is rated to 232 psi. Please be aware that if used for through hull applications, the hex lock nut fitting must be correctly electrically bonded in order to prevent corrosion. Brass is not recommended for below the waterline, due to it being susceptible to dezincification. Sold singularly.

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FAQ's

  • How can I identify the correct BSP / NPT size fittings that I require? +

    Please refer to this useful guide:

    BSP / NPT Identification

  • How many threads per inch do your fittings have? +

    Our fittings come with standard BSP or NPT threads and therefore have a set number of threads per inch depending on the size of the pipe fitting. Please see below for our helpful guide:

    Nominal Pipe Size

    Threads per Inch

    NPT

    BSP

    1/16"

    27

    -

    1/8"

    27

    28

    1/4"

    18

    19

    3/8"

    18

    19

    1/2"

    14

    14

    3/4"

    14

    14

    1"

    11-1/2

    11

    1-1/4"

    11-1/2

    11

    1-1/2"

    11-1/2

    11

    2"

    11-1/2

    11

    2-1/2"

    8

    11

    3"

    8

    11

    3-1/2"

    8

    11

    4"

    8

    11

    5"

    8

    11

    6"

    8

    11

    8"

    8

    11

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