UNC Connectors | McMaster-Carr

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Finish

Hot-Dipped Galvanized

Zinc Yellow-Chromate Plated

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Threaded on Both Ends

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Barrel Length

Fastener Head Type

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Performance

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Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

REACH

For Material Thickness

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

Yes

Export Control Classification Number (ECCN)

3,114 Products

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

296 products

Hex Nuts

Handle most general fastening needs

9 products

Thread Adapters

Join threads of a different type, size, and gender

44 products

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

39 products

Tube-Connecting Nuts

Push inside tubes to join them with a threaded stud instead of welding

21 products

Studs

Press, weld, or screw in place to add a threaded fastening point

380 products

Joint Clamps for Wood

Make secure joints between boards, butcher blocks, and countertops

3 products

Snap-In Nuts

Push into square holes in thin materials to add bolts for aligning off-center parts

42 products

Adhesive-Mount Nuts

Attach threads to material that’s too thin for a threaded insert

78 products

Weld Nuts

Weld to metal surfaces to add permanent threads

254 products

Dowel Nuts

Form joints in blind holes in wood

11 products

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

36 products

Binding Barrels

Create custom low-profile fasteners with binding barrel posts, caps, and screws

773 products

Standoff Caps

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

66 products

Standoffs

Separate, position, or connect components in assemblies

3 products

Anchors

Secure anything from signs to heavy machinery in concrete, brick, and drywall

743 products

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

90 products

Electrical Power, Networking, and Controlling

Grounding Lugs

Create a common grounding path for internal components and circuits, as well as the enclosure body

1 product

RJ45 Adapters

Connect two Ethernet cords together

7 products

Lubricating

Oil Brushes

Connect to oil dispensers to brush lubricant onto chain, gears, and conveyors

4 products

Fluid Handling

Orifice Valves

Restrict the flow of liquids and gases to precisely control rate and pressure

63 products

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

1 product

Material Handling

Turnbuckle Nuts

Tighten against a turnbuckle body to prevent the end fitting from unscrewing

34 products

Building and Machinery Hardware

Positioning Arms

Mount and position tools and other small equipment

29 products

Leveling Mount Inserts

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

94 products