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Ten zinc-plated steel button-head grease fittings with straight threads

Kingfisher

Kingfisher 5PU34 Button-Head Grease Fitting 1/8-27 PTF 10-Pack

SKU CH-MB5J-K8CJB MPN 5PU34

Pack of ten zinc-plated steel button-head grease fittings with 1/8-27 PTF threads rated to 8,000 psi

  • TypeDrain Components
  • Mild steel head resists wear during lubrication tasks
  • Carbon steel spring and ball maintain reliable sealing under pressure
  • Zinc-plated finish protects against corrosion in harsh environments
  • 8,000 psi rating supports high-pressure grease applications
  • SAE J-534-C and DIN 71412 compliance ensures industry-standard quality

Grease Fittings for Lubrication Points

The Kingfisher 5PU34 pack supplies ten button-head grease fittings built with mild steel heads and carbon steel springs and balls. Each fitting uses a straight 1/8-27 PTF thread and a zinc-plated finish for corrosion resistance. They suit maintenance technicians who need reliable lubrication access on industrial or automotive equipment.

Threaded Install with High Pressure Rating

Installation requires a matching 1/8-27 PTF port; the straight head angle keeps the profile low for tight clearances. The fittings are rated to 8,000 psi and meet SAE J-534-C and DIN 71412 standards, freeing the installer from sourcing separate high-pressure components. The ten-piece quantity covers multiple lubrication points in a single order.

Sustained Pressure Performance

Under continuous pumping the carbon steel ball and spring maintain positive seating to prevent leakage at the rated 8,000 psi. The zinc plating resists surface degradation during extended service intervals. The pack is not suited for systems using metric or NPT threads, nor for applications requiring angled or flush-style heads.

Highlights

  • Mild steel head resists wear during lubrication tasks
  • Carbon steel spring and ball maintain reliable sealing under pressure
  • Zinc-plated finish protects against corrosion in harsh environments
  • 8,000 psi rating supports high-pressure grease applications
  • SAE J-534-C and DIN 71412 compliance ensures industry-standard quality

Specifications

TypeDrain Components
BrandKingfisher
Model5PU34

Questions about this item

What pressure limit does the 1/8-27 PTF button-head fitting reach before it stops accepting grease under sustained pumping?

The fitting is rated to a maximum pressure of 8,000 psi, so sustained pumping beyond that limit will prevent further grease intake.

How much heat or noise does the zinc-plated steel fitting generate during all-day lubrication cycles?

The passive steel fitting produces no noise and negligible heat because it has no moving parts beyond the internal ball check.

Which thread standard must the existing port match for the 1/8-27 PTF fitting to seal without adapters?

The port must be cut to 1/8 inch -27 PTF threads; mismatched threads will leak or strip.

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