Brass Pipe Hex-Socket Pipe Fitting Plugs | McMaster-Carr

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AC Voltage Plugs Adjustable Plugs Air Expansion Plugs Air Plugs Air Test Plugs Allen Plugs Aviation Plugs Ball Plugs Ballast Plugs Banana Plugs Barrel Bung Plugs Barrel Plugs Barrel Power Plugs Bathtub Drain Plugs Battery Charger Plugs Battery Plugs Bayonet-style Multipin Plugs Bladder Plugs Blanking Plugs Blind Plugs Boat Plugs Body Plugs Bolt Hole Plugs Brass Hose Coupling Plugs Breather Plugs Breather Vent Drain Plugs Bulkhead Plugs Bull Pipe Plugs Bull Plugs Bung Plugs Button Head Plugs Button Plugs Bypass Plugs California Standard Plugs Cap Hole Plugs Cap Plugs Car Lighter Plugs Casting Plugs Cleanout Plugs Color-Changing Humidity Plugs Combination Cleanout/Test Plugs Compression Tube Plugs Computer Plugs Condenser Tube Plugs Conduit Plugs Conical Plugs Connector Plugs Core Plugs Corrosion-Inhibiting Plugs CV Plugs Data Transmission Plugs DC Power Plugs DC Voltage Plugs Desiccator Plugs DMX Plugs Dome-Top Plugs Drain Pipe Plugs Drain Plugs Drum Plugs Dry Pack Plugs Duct Plugs Dust Plugs Edison Plugs Electrical Cord Plugs Electrical Enclosure Drain Plugs Electrical Enclosure Plugs Electrical Hole Plugs Electrical Knockout Plugs Electrical Plugs Electrical Plugs and Receptacles Enclosure Plugs Engine Spark Plugs Ethernet Plugs Ethernet Port Plugs European Plugs Expander Plugs Expansion Plugs Expansion Test Plugs Extension Cord Plugs Filter Plugs Finger Grip Plugs Finishing Plugs Fire Hose Plugs Fire Hydrant Plugs Fire-Stop Plugs Firewall Plugs Fixture Plate Chip Plugs Flared Compression Tube Plugs Flush Pipe Plugs Forklift Plugs Freeze Plugs Frost Plugs Furniture Plugs Fused Plugs Fusible Plugs GFCI Plugs Grease Fitting Plugs Grease Pipe Plugs Grease Plugs Grease Tube Plugs Grip-Lock Hose Plugs Grommet Hole Plugs Grommet Plugs Ground-Monitoring Plugs Harsh Environment Electrical Plugs Heat Exchanger Plugs Heat Plugs High-Amp Electrical Plugs High-Pressure Plugs High-Temperature Plugs Hole Cover Plugs Hole Plugs Hollow Plugs Hose Coupling Dust Plugs Hose Fitting Dust Plugs Hose Plugs Hospital-Grade Plugs Humidity-Indicating Plugs Hydraulic Plugs Hydrostatic Test Plugs Inflatable Expansion Test Plugs Inflatable Plugs Insert Plugs International Plugs Iridium Spark Plugs ix Industrial Plugs Junction Box Plugs Knockout Plugs Laboratory Plugs Lamp Plugs Lighted Plugs Locking Panel Plugs Locking Plugs Lockout Tagout Plugs LOTO (Lockout/Tagout) Plugs Luer Lock Barbed Tube Plugs Luer Lock Brass Tube Plugs Luer Lock Compression Tube Plugs Luer Lock NPT Tube Plugs M12 Plugs Magnetic Drain Plugs Magnetic Plugs Magnetic Tank Drain Plugs Manifold Plugs Marine Electrical Plugs Masking Plugs Mechanical Expansion Test Plugs Metric Pipe Fitting Plugs Metric Snap-In Plugs Micro Connector Plugs Microphone Plugs Midget Plugs Mini Connector Plugs Modular Plugs Moisture-Indicating Plugs Multipin Connector Plugs Multipole Connector Plugs Nano Connector Plugs NEMA Midget Plugs Network Plugs NPT Push-In Plugs O-Ring Plugs Outlet Plugs Oval Plugs Paint Masking Plugs Panel Hole Plugs Panel Mount Plugs Phono Plugs Pico Connector Plugs Pin-and-Sleeve Plugs Pin-and-Socket Plugs Pipe Fitting Plugs Pipe O-Ring Plugs Pipe Plugs Pipe Test Plugs Plastic Tapered Plugs Plug Assortments Plugs Plugs for Universal Hose Sockets Plumbers' Plugs Pneumatic Expansion Plugs Pneumatic Plugs Pneumatic Test Plugs Polyethylene Square Plugs Port Plugs Powder-Coating Plugs Power Cord Plugs Power Plugs Power-Indicating Plugs Pressure Plugs Pressure Test Plugs Protective Plugs Pull-Tab Plugs Pull-Through Plugs Push-Button Hole Plugs Push-In Finishing Plugs Push-In Panel Plugs Push-In Plugs Push-In Tapered Plugs Quick-Disconnect Barbed Tube Plugs Quick-Disconnect Compression Tube Plugs Quick-Disconnect NPT Tube Plugs Quick-Turn Barbed Tube Plugs Quick-Turn NPT Tube Plugs RCA Plugs Recessed Electrical Plugs Ribbed Plugs Rotary Broach Locating Plugs Round Plugs Round Plugs for Tubing Round Sundry Plugs RTD Plugs Rubber Plugs Schrader Valve Bypass Plugs Screw Plugs Sealing Plugs Sensor Plugs Sewer Plugs Sewer Test Plugs Sheet Metal Plugs Shipping Plugs Sight Plugs Sink Drain Plugs Snap Plugs Snap-In Plugs Socket Head Plugs Socket Pipe Fitting Plugs Solder Plugs Solder-Joint Tube Plugs Solenoid Plugs Solenoid Valve Plugs Spark Plugs Speed Rail Plugs Square Plastic Plugs Standard Cap Plugs Standard Metal Hex-Head Pipe Fitting Plugs Static Control Plugs Stereo Plugs Stopper Plugs Straight-Blade Plugs Structural Framing Plugs Structural Pipe Plugs Structural Tube Plugs Strut Channel Plugs Sundry Plugs Tank Plugs Telephone Plugs Test Plugs Test Pumps and Plugs Tethered Plugs Theater Stage Plugs Thermocouple Plugs Thread Protector Plugs Threaded Hole Plugs Threaded Pipe Fitting Plugs Threaded Plugs Tire Plugs Trailer Plugs Tube Plugs Turn-Lock Plugs Twist-Lock Plugs USB Charging Plugs Vacuum Plugs Vent Plugs Vented Plugs Wall Plugs Water Expansion Plugs Water Test Plugs Watertight Electrical Plugs Welch Plugs Welder Plugs Welding Plugs Wing Nut Plugs Wire Plugs XLR Plugs

	Type Type


Plug	Cap

Bushing	Reducing Adapter

Connector

	Drive Style Drive Style


Hex	External Hex

Square

	Pipe Size Pipe Size

	Thread Type Thread Type

UNJ/UNJF (Tube End)

	System of Measurement System of Measurement

	Thread Size Thread Size

	Material Material

Stainless
Steel

	For Use With For Use With

	For Pipe Material For Pipe Material

Stainless Steel

	Shape Shape

	Cap/Plug
	Straight
	90° Elbow

	Maximum Pressure Maximum Pressure

70 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

140 psi @ 72° F

150 psi @ 72° F

165 psi @ 72° F

175 psi @ 72° F

185 psi @ 72° F

200 psi @ 72° F

225 psi @ 72° F

240 psi @ 72° F

300 psi @ 72° F

310 psi @ 72° F

500 psi @ 72° F

700 psi @ 72° F

725 psi @ 72° F

1,000 psi @ 72° F

1,080 psi @ 72° F

1,160 psi @ 72° F

1,200 psi @ 72° F

1,230 psi @ 72° F

1,400 psi @ 72° F

1,450 psi @ 72° F

1,500 psi @ 72° F

1,600 psi @ 72° F

1,700 psi @ 72° F

1,800 psi @ 72° F

2,000 psi @ 72° F

2,100 psi @ 72° F

2,170 psi @ 72° F

2,200 psi @ 72° F

2,300 psi @ 72° F

2,400 psi @ 72° F

2,500 psi @ 72° F

2,600 psi @ 72° F

2,700 psi @ 72° F

2,900 psi @ 72° F

3,000 psi @ 72° F

3,200 psi @ 72° F

3,300 psi @ 72° F

3,500 psi @ 72° F

3,600 psi @ 72° F

3,800 psi @ 72° F

3,900 psi @ 72° F

4,000 psi @ 72° F

4,100 psi @ 72° F

4,300 psi @ 72° F

4,400 psi @ 72° F

4,500 psi @ 72° F

4,600 psi @ 72° F

4,800 psi @ 72° F

5,000 psi @ 72° F

5,100 psi @ 72° F

5,200 psi @ 72° F

5,300 psi @ 72° F

5,400 psi @ 72° F

5,500 psi @ 72° F

5,600 psi @ 72° F

5,800 psi @ 72° F

6,000 psi @ 72° F

6,100 psi @ 72° F

6,200 psi @ 72° F

6,400 psi @ 72° F

6,600 psi @ 72° F

6,900 psi @ 72° F

7,000 psi @ 72° F

7,200 psi @ 72° F

7,300 psi @ 72° F

7,500 psi @ 72° F

7,600 psi @ 72° F

8,000 psi @ 72° F

9,000 psi @ 72° F

9,100 psi @ 72° F

9,700 psi @ 72° F

10,000 psi @ 72° F

15,000 psi @ 72° F

	Length Length

	Gender Gender

	Connection Style Connection Style

	Drive Size Drive Size

	Connection Type Connection Type

	Pipe
	Tube

	Body Shape Body Shape


Hex	Round

Square

	Thread Pitch Thread Pitch

	Specifications Met Specifications Met

	Plug Construction Plug Construction

Solid with Magnet

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Finish Finish

Zinc-Phosphate Coated

Black Zinc Plated

	Class Class

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1,144 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

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Pipe, Tubing, Hose, and Fittings

Stainless Steel Pipe and Pipe Fittings

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Stainless steel has very good to excellent corrosion resistance.

Iron and Steel Pipe and Pipe Fittings

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Iron and steel are more economical than stainless steel. They are compatible and can be used interchangeably.

Brass and Bronze Pipe and Pipe Fittings

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Brass and bronze have good corrosion resistance. They are often used in drinking water and plumbing applications. Brass and bronze are compatible and can be used interchangeably.

Aluminum Pipe and Pipe Fittings

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Aluminum has good corrosion resistance and is lightweight.

Titanium Threaded Pipe Fittings

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Titanium has similar strength to steel, but is approximately 40% lighter. It has better corrosion resistance than most stainless steel alloys and can handle corrosive substances, such as salt water and acids.

Plastic Pipe and Pipe Fittings

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Plastic pipe and pipe fittings are lighter in weight than metal pipe and pipe fittings. They are typically for low- to medium-pressure applications up to 1,000 psi.

Tube Fittings for Metal Tubing

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Fittings are designed for medium- to high-pressure applications. They connect to tubing or pipe.

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