ISO 6149 (-4) Internal Hex Port Plug (PLIH) | Metric Thread Hydraulic Port Plug for Leak-Free Sealing

Description

The ISO 6149 (-4) Internal Hex Port Plug (PLIH) is a precision-machined component designed to seal off metric threaded ports in hydraulic and pneumatic systems. This plug features an internal hex (Allen) drive for easy installation and removal with standard hex keys, making it ideal for maintenance access and reliable system closure.

Manufactured from carbon steel or stainless steel, this plug is available in multiple grades (4.8, 8.8, 10.9, 12.9) and various surface finishes to suit diverse environmental conditions—ranging from plain and black oxide to zinc, copper, and nickel plating, as well as hot dip galvanizing and zinc impregnation.

Conforming to ISO 6149 standards, this port plug ensures compatibility with a wide range of hydraulic equipment globally. OEM customization is supported, with production available according to your drawings or samples.

Specifications:

• Standard: ISO 6149 (-4)

• Model: PLIH (Port Plug with Internal Hex)

• Thread Type: Metric Thread

• Drive Type: Internal Hex (Allen Key)

• Material: Carbon Steel, Stainless Steel

• Grade: 4.8, 8.8, 10.9, 12.9

• Finish Options: Plain, Black Oxide, Zinc Electroplating, Hot Dip Galvanizing, Copper Plating, Nickel Plating, Zinc Impregnation, etc.

• Customization: OEM service available (Drawings or Samples accepted)

Samples:
✔ Free samples available on request

Packaging Options:
✔ Wooden Boxes
✔ Pallets
✔ Cartons
✔ Plastic Bags
✔ Nylon Bags

Applications:
✔ Hydraulic systems
✔ Pneumatic ports
✔ Industrial machinery
✔ Automotive fluid systems
✔ OEM manufacturing and maintenance