Insert Caps | McMaster-Carr

Filter by

System of Measurement

Material

Shape

Attachment Type

Color

Profile Shape

Pipe Size

Thread Size

For Use With

Height

Head Diameter

Head Width

Plug Connection Method

Inside Width

Thread Type

UN/UNF (SAE Straight)

Panel Thickness

Performance

Maximum Temperature

REACH

RoHS

Compliant with Exemptions

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

Number of Holes

1,594 Products

Building and Machinery Hardware

Protective Plugs

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

1,009 products

Bolt-Together Framing End Caps

Cover the rough ends of bolt-together framing rails for a finished look

1 product

Strut Channel Plugs

Plug strut channel ends to protect from sharp edges

28 products

T-Slotted Framing End Caps

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

39 products

Slip-On Framing End Caps

Cover the rough ends of slip-on framing rails for a finished look

25 products

Press-Fit Framing End Caps

Push into press-fit rails for a finished look that keeps out debris

2 products

Clamp-On Framing End Caps

Fit into the end of clamp-on framing rails to use as a cover or foot

1 product

Locking-Slotted Framing End Caps

Snap onto locking-slotted rails to protect the ends and keep out dust and grime

1 product

Leveling Mount Inserts

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

113 products

Protective Feet

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

15 products

Fastening and Joining

Threaded Inserts

Create new threads or repair stripped threads

1 product

Press-Fit Nuts

Push into drilled or punched holes to add threads to thin panels

2 products

Power Transmission

Die Spring Screw Caps

Brace springs and control tension in die sets while simplifying maintenance

10 products

Lubricating

Grease Fitting Adapters

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

41 products

Fluid Handling

Breather Vents

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

79 products

Heat Exchanger Plugs

Plug leaky internal tubes in heat exchangers

17 products

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

95 products

Electrical Power, Networking, and Controlling

Data Port Locks

Block USB or Ethernet ports from unauthorized use

9 products

Data Port Plugs

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

3 products

Material Handling

Conveyor Guide Mounting Rod Caps

Cover the ends of conveyor guide mounting rods for a finished look

2 products

Containers, Storage, and Furniture

Drum Plug Caps

Access inside drums to fill them

1 product

Facility and Grounds Maintenance

Sink Drain Stoppers

Plug drains to fill up sinks and tubs

5 products

Heating, Ventilation, and Air Conditioning

Duct End Caps

Close off a length of duct

63 products

Safety Equipment

Floor Drain Plugs

Prevent oil and other spills from going down your floor drain

3 products

Hard Hat Cooling Pads

Soak in water to keep your head cool

5 products

Hard Hat Liners

Layer under your hard hat for extra warmth

17 products

Bump Cap Inserts

Tuck inside a baseball cap to protect your head from bumps and scrapes

4 products