GN 648.1 Ball joint heads with female thread


Product description


Ball joint heads GN 648.1 are similar to DIN ISO 12240-4, series K (formerly DIN 648 K).


  • zinc plated, blue passivated
  • d1 = 5 up to 12: machined
  • d1 = 14 up to 25: forged

  • Type N (lubrication possible)
    Bearing socket
    Brass, CuZn40Al
Internal ring
Steel 100 Cr6
hardened, ground, polished
  • Type W (self lubricated)
    Bearing socket
    Steel, zinc plated
    with PTFE-insert
Internal ring
Steel, 100Cr6
hardened, ground, polished

RoHS compliant

On request

narrow model (ISO 12240-1, series E)

Technical drawing

Hide technical drawing
GN 648.1 Ball joint heads with female thread sketch

Article options / Table


NBrass / Steel lubrication possible
WSteel -PTFE / Steel self lubricated
Show / Hide columns
d1 H7d2
Left hand

b1 -0,12b2d3d4d5d6l1l2A/Ftw
5M 5M 5LM 4867,718911273691013°
6M 6M 6L-96,758,92010133040111213°
8M 8M 8L-12910,42412,5163648131614°
10M 10M 10LM 10 x 1,251410,512,92815194357172013°
12M 12M 12LM 12 x 1,25161215,43217,5225066192213°
14M 14M 14L-1913,516,83620255775222516°
16M 16M 16LM 16 x 1,5211519,34222276485222815°
18M 18 x 1,5M 18 x 1,5L-2316,521,84625317194273215°
20M 20 x 1,5M 20 x 1,5L-251824,35027,53477102323314°
22M 22 x 1,5M 22 x 1,5L-282025,854303784111323715°
25M 24 x 2M 24 x 2L-312229,66033,54294124364215°
30*M 30 x 2M 30 x 2L-372534,8704051110145415117°
* only available in type W

Build & Price

Bore d1
Thread d2

Selected Part (How to order)

Weight: 0,020 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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