Standard Cap Plugs | McMaster-Carr

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Material

Stainless Steel

Pipe Size

Fitting Type

Shape

Thread Type

UN/UNF (SAE 45°)

UN/UNF (SAE Straight)

System of Measurement

Thread Size

For Use With

Color

ID

0.022" to 0.079"

0.025" to 0.08"

0.03" to 0.083"

3/64" to 13/64"

1/16" to 11/64"

1/16" to 13/64"

OD

0.053" to 0.12"

0.079" to 0.15"

0.111" to 0.177"

Pipe Material

Stainless Steel

Drive Style

External 12-Point

External Octagon

External Square

Gender

Fitting Connection

Spec Image

Spec Image

Spec Image

Push to Connect

Spec Image

Quick Disconnect

Spec Image

Length

Plug Connection Method

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

Profile Shape

DFARS Specialty Metals

Pipe Schedule

Cap Type

Screw on for Fitting

Screw on for Tubing

Pressure Class

Maximum Pressure @ Temperature

30 psi @ 72° F

35 psi @ 72° F

40 psi @ 72° F

45 psi @ 72° F

50 psi @ 72° F

60 psi @ 72° F

70 psi @ 72° F

80 psi @ 72° F

90 psi @ 72° F

100 psi @ 72° F

110 psi @ 72° F

120 psi @ 72° F

125 psi @ 72° F

130 psi @ 72° F

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7,482 Products

Building and Machinery Hardware

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

Protective Plugs

Protective Plugs

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

Protective Feet

Protective Feet

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

Hand Grips

Cover handles so they're more comfortable and secure to hold

Slip-On Framing and Fittings

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

Clamp-On Framing and Fittings

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

Bolt-Together Framing and Fittings

Bolt-Together Framing and Fittings

Fasten through equally spaced holes to build and adjust guards, tables, and racks

Press-Fit Framing and Fittings

Press-Fit Framing and Fittings

Set up temporary partitions, guards, and displays using only a hammer

Fluid Handling

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

Pipe Plugs

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

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

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

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Breather Vents

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

Expansion Plugs

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Bore Sealing Plugs

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

Electrical

Electrical Connector Caps

Electrical Connector Caps

Protect data connectors when not in use

Data Port Locks

Data Port Locks

Block USB or Ethernet ports from unauthorized use

Data Port Plugs

Data Port Plugs

Keep dust, debris, and moisture out of unused computer ports

Heat-Shrink Tubing End Caps

Heat-Shrink Tubing End Caps

Seal moisture out of crimped electrical connections

Electrical Enclosure Plugs

Electrical Enclosure Plugs

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

DIN Rail Caps

Guard the edges of DIN rail from damage and create a finished look

Capacitor Boots

Capacitor Boots

Shield capacitors and wire connections to extend their service life and reduce accidental shocks

Cold-Shrink Tubing End Caps

Cold-Shrink Tubing End Caps

Seal crimped electrical connections without heat or tools to protect against moisture

Fabricating and Machining

Fixture Plate Plugs

Fixture Plate Plugs

Keep chips and shavings from clogging or damaging unused holes on fixture plates in milling machines

Lubricating

Grease Fittings

Grease Fittings

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

Fastening and Joining

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

Containers, Storage, and Furniture

Stacking Caps and Targets

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

Drum Plugs

Seal drum lid openings

Drum Plug Caps

Access inside drums to fill them

Dust Covers

Stretch over drums, pails, and other objects to keep out dust and debris

Fuel Caps

Seal fuel tanks on trailers, compressors, and other equipment

Facility and Grounds Maintenance

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

Heating, Ventilation, and Air Conditioning

Air Conditioner Service Valve Caps

Air Conditioner Service Valve Caps

Seal off AC service valves to prevent refrigerant from leaking out

Safety Equipment

Bearing Guards

Shield bearings from dirt, and protect fingers and tools from moving parts

Communication

Tamper-Evident Seals

Tamper-Evident Seals

Secure hasps, latches, and other connections to visibly indicate tampering

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