GN 749 Threaded plugs Steel, zinc plated


Product description


The dimensions of the threaded plugs GN 749 comply with DIN 908, but deviating from the latter is the elastic sealing ring (rubber). This sealling ring is retained in a radial undercut in the mating face which prevents it from dropping out and in particular it does not extrude when the plug is tightened.

The details relating to the permissible opreating pressure are non-binding recommended values and rule out any liability. They constitute no general warranty of quality and condition. The user must determine from case to case whether a product is suitable for the intended use.


  • Tensile strength class 5.8
  • ultrasonically and tensile tested
  • zinc plated, nano-passivated (silver / yellowish)

Type A
temperature resistant up to 100 °C
Sealing ring rubber NBR (Perbunan)

Type B
temperature resistant up to 180 °C
Sealing ring rubber
FPM (Viton®)
Identification by not black finish of the seal.

RoHS compliant

Technical drawing

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GN 749 Threaded plugs, Steel sketch

Article options / Table


ASealing with synthetic rubber NBR (Perbunan)
BSealing with synthetic rubber FPM(Viton)
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d1d1d2 h14d3l1l2smax .permissible
operating pressure
in bar
in Nm
M 8 x 1--129,98444008
M 10 x 1-G 1/81411,984540012
M 12 x 1,5--1714,4125640025
M 14 x 1,5-G 1/41916,5125640030
M 16 x 1,5-G 3/82218,9125840050
M 18 x 1,5--2420,9125840060
M 20 x 1,5--2622,91451040070
M 22 x 1,5--2724,31451040080
--G 1/22723,91451040080
M 24 x 1,5--3026,91451240095
M 26 x 1,5M 27 x 2G 3/43229,216512400120
M 30 x 1,5--3732,7166,517400190
M 33 x 2-G 14035,7166,517400225
M 42 x 2-G 11/45045,8166,522315360
M 48 x 2-G 11/25550,7166,524315400

Build & Price

Fine thread d1
Inch thread d1

Selected Part (How to order)

Weight: 0,005 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone+49 7723 6507 - 0
RoHS compliant: Yes
This article conforms to RoHS, which means it complies with EU Directive 2011/65/EU for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Please note our quantity discounts.
With a total value (net) per order:
from 150 Euro -> 10 % discount
from 250 Euro -> 20 % discount
from 350 Euro -> 30 % discount
All prices in accordance with our price list No. 51, valid from 1 February 2018, plus VAT only valid for Germany.

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