Plastic Protective Caps | McMaster-Carr

Filter by

System of Measurement

OD

0.053" to 0.12"

0.079" to 0.15"

0.205" to 0.273"

0.235" to 0.302"

Color

Inside Height

Attachment Type

Worm-Drive Clamp

Shape

Pipe Size

For Use With

Precision Knives

Flexibility

Profile Shape

ID

0.14" to 0.275"

0.16" to 0.275"

0.226" to 0.367"

Thread Size

Fitting Type

Performance

Chemical Resistant

Corrosion Resistant

Crack Resistant

Flame Resistant

Flame Retardant

High Temperature

High Visibility

Impact Resistant

Moisture Resistant

Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 499° F

500° F to 999° F

RoHS

Compliant with Exemptions

REACH

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

Thread Type

UN/UNF (SAE 45°)

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Outside Width

Screw Size

Head Width

Inside Width

0.584" to 0.68"

0.709" to 0.805"

How can we improve?

2,299 Products

Protective Caps

Round Caps

Keep dust and coatings out of threads and prevent damage during shipping and storage

Tapered Caps

One cap fits a range of diameters

Rectangular Caps

Rectangular Caps

Slide onto rectangular parts such as levers and handles

Pull-Tab-Release Caps

Pull-Tab-Release Caps

Grab and tug with your fingertips for easier removal than other caps

Caps for Food and Beverage

Caps for Food and Beverage

Cover threads in food production and packaging areas

Square Caps

Fit over the ends of square tubing, framing rails, and posts

Screw-On Caps

Thread onto male pipe and fittings for the most secure fit

Caps for Hex Nuts

Caps for Hex Nuts

Seal out moisture and dirt to prevent corrosion and buildup on threads

Squeeze-Release Caps

Squeeze-Release Caps

The quickest to remove, caps release instantly with a pinch of your fingers

Tapered Cap Assortments

Tapered Cap Assortments

A variety of sizes for whatever job comes up

Adhesive-Back Caps for Pipe Flanges

Adhesive-Back Caps for Pipe Flanges

Stick onto the raised face of flanges to prevent nicks and scratches

Antistatic Caps

Antistatic Caps

Prevent static buildup to protect components such as semiconductors and resistors

Tear-Tab Caps

Stay securely on fittings until you rip off the tab

Tethered Caps

Caps connect to parts so they don’t get lost when removed

Caps for Pipe Flanges

Caps for Pipe Flanges

Push on to avoid surface scratches and hole damage or mask while painting and coating

Conductive Caps

Conductive Caps

Shield components from interference and drain static quickly

90° Angle Caps

90° Angle Caps

Enclose the raw ends of angle iron, shelving, and furniture

Roll-Resistant Caps

Roll-Resistant Caps

Keep shipping tubes and other round objects from rolling and being damaged

Snap-On Caps for Screws

Snap-On Caps for Screws

Conceal screw heads for a finished look that protects people and parts from getting snagged

Hinged Caps for Screws

Hinged Caps for Screws

Flip open for frequent access to screws without misplacing the cap

Corner Caps

Guard the corners of fragile or sharp materials such as glass and metal sheets

Caps for Socket Head Screws

Caps for Socket Head Screws

Keep debris from clogging or damaging hex drives

Tear-Tab Caps for Propane Tanks

Tear-Tab Caps for Propane Tanks

Guard propane tank valves against dents and dirt

Snap-On Caps for Pipe Flanges

Snap-On Caps for Pipe Flanges

Align with the bolt holes and snap on to protect from damage and mask from coatings

Retaining Caps

Hold components in place and protect shaft ends

Hangable Caps

Slip over the end of handles to hang brooms, brushes, and other tools

Other Products

Protective Plugs

Protective Plugs

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

Pipe and Fittings

Pipe and Fittings

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

USB Connector Caps

USB Connector Caps

Shield unused USB connectors from damage, contaminants, and moisture

Conveyor Guide Mounting Rod Caps

Conveyor Guide Mounting Rod Caps

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

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

Tube Fittings

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

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

Cap Nuts

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

DIN Rail Caps

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

Dust Covers

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

Bearing Guards

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

Syringe Caps

Cover syringe tips when not in use to protect them and prevent leaks

Circuit Breaker Box Filler Plates

Circuit Breaker Box Filler Plates

Conceal live electrical components in circuit breaker boxes to prevent injury and damage

Data Port Plugs

Data Port Plugs

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

Hose and Hose Fittings

Hose and Hose Fittings

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

Fixture Plate Plugs

Fixture Plate Plugs

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

RJ45 Connector Security Clips

RJ45 Connector Security Clips

Lock Ethernet cords in place to prevent unauthorized removal from ports

Knife Sheaths

Safely store knives while protecting them from damage

Data Port Locks

Data Port Locks

Block USB or Ethernet ports from unauthorized use

Power Connector Caps

Power Connector Caps

Cover pin-and-sleeve power connectors when they're not in use

Drain Cleanouts

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

Pallet Load Covers

Pallet Load Covers

Fit over boxes on pallets to shield the tops and edges from strapping gouges and impact

Tamper-Evident Seals

Tamper-Evident Seals

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

Tooling Ball Covers

Tooling Ball Covers

Protect tooling balls when not in use

RJ45 Connector Caps

RJ45 Connector Caps

Protect sockets and maintain the IP67 rating when not in use

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