Metric Caps | McMaster-Carr

Filter by

System of Measurement

Thread Size

Material

Stainless Steel

Fitting Type

Thread Type

Shape

Thread Pitch

Pipe Size

Gender

Tube OD

Color

For Use With

Hydraulic Fluid

Hydraulic Fluid (Petroleum Based)

Length

Drive Style

External Square

ID

Pipe Material

Stainless Steel

Fitting Connection

Spec Image

Push to Connect

Quick Disconnect

Spec Image

Mount Type

Unthreaded Hole

OD

REACH

RoHS

Compliant with Exemptions

DFARS Specialty Metals

Head Diameter

Export Control Classification Number (ECCN)

Nut Type

Plug Connection Method

How can we improve?

1,397 Products

Most Likely Products

Pipe and Fittings

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Electrical Connector Caps

Electrical Connector Caps

Protect data connectors when not in use

Cap Nuts

Cover and protect threads while adding a finished look; also known as acorn nuts

All Results

Fluid Handling

Pipe and Fittings

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Tube End Plugs

Insert into the ends of tube to keep out dirt and debris

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

Hose and Hose Fittings

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

Sights

Observe and monitor the contents of pipes, tanks, and other containers

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

Bore Sealing Plugs

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

Building and Machinery Hardware

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

T-Slotted Framing End Caps

T-Slotted Framing End Caps

Snap onto T-slotted rail ends to cover sharp edges and keep out dust

T-Slotted Framing Seals

T-Slotted Framing Seals

Fill gaps around doors and panels to keep air, dust, and liquid out of T-slotted framing structures

T-Slotted Framing Covers

T-Slotted Framing Covers

Block dust and debris from entering T-slotted rails; add a wear- or slip-resistant surface

T-Slotted Framing Mounts

T-Slotted Framing Mounts

Connect tubes, switches, casters, and other components to T-slotted rails

Knobs

Position, tighten, and secure fixtures and equipment

Leveling Mount Inserts

Leveling Mount Inserts

Slip onto equipment and furniture to add threaded-stud leveling feet

Protective Feet

Protective Feet

Add to furniture and light equipment to protect floors from scratches and wear

Electrical

Electrical Connector Caps

Electrical Connector Caps

Protect data connectors when not in use

Solenoid Valve Sockets

Solenoid Valve Sockets

Pair with plugs or receptacles to connect solenoid components

Power Connectors

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

Latching Connector Inserts

Latching Connector Inserts

Male and female inserts for making connections inside hoods and bases

Power Cords

Connect equipment and devices to a power source

Electrical Enclosure Plugs

Electrical Enclosure Plugs

Block or seal holes in outlet boxes and enclosures to keep out debris, dust, and moisture

Electrical Enclosure Drains

Electrical Enclosure Drains

Release moisture to keep components dry

Electrical Enclosure Drain Vents

Electrical Enclosure Drain Vents

Prevent moisture from getting trapped inside enclosures while letting air flow through

Fastening and Joining

Cap Nuts

Cover and protect threads while adding a finished look; also known as acorn nuts

Quick-Release Pin Receptacles

Quick-Release Pin Receptacles

Secure quick-release pins when you don’t have a through hole

Quick-Release Pin Retaining Caps

Quick-Release Pin Retaining Caps

Hold quick-release pins in holes that are oversized or out of round

Retaining Rings

Retaining Rings

Hold components on a shaft

Lubricating

Grease Fitting Adapters

Grease Fitting Adapters

Mate grease fittings when the sizes and thread types don't match

Grease Fittings

Grease Fittings

Create an inlet on equipment and machinery for injecting lubricant; also known as Zerk fittings

Measuring and Inspecting

Variance Indicator Caps

Variance Indicator Caps

Cover and color-code the spindle on your variance indicator

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)