UMETA Button-Head Grease Fittings according to DIN 3404


UMETA button-head grease fittings are particularly suitable for lubricating points with a big grease volume because of their specific high flow-rate of grease. As another result of the robust construction, these grease fittings are preferably used in the construction machinery.



The UMETA button-head grease fittings are available in four different sizes:

  • head Ø 10 mm = M4
  • head Ø 16 mm = M1
  • head Ø 22 mm = M22
  • head hexagon-type, wrench size 15 mm = T1

In general, our button-head grease fittings according to DIN are made of steel, zinc-plated and passivated, and they are featured with a cylindrical thread. We offer various standard types also in brass or stainless steel V2A/V4A.

Upon request, UMETA manufactures button head grease fittings in further versions, with respect to e. g.

  • dimension
  • material
  • thread size
  • thread form (e. g. with tapered thread)
  • different opening pressure
  • surface colour (e. g. yellow passivated)
  • further surface treatment
  • etc.



In order to allow for a proper lubrication with all common grease guns, the head space, which is necessary for installation, should be considered.



As suitable lubricating nozzle, we recommend our button-head coupler

Button-head grease fittings Type M1

- head diameter 16 mm



Button-head grease fittings Type M4

- head diameter 10 mm



Button-head grease Fittings Type M22

- head diameter 22 mm



Button-head grease fittings Type T1 + T1B

- hexagonal head form, wrench size 15 mm



Button-head grease fittings - Special designs

- e. g. with extension, check valve, or protection cap



Grease fittings
Button-Head Grease Fittings DIN 3404

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