Brass Fasteners | McMaster-Carr

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Metric Class 4H

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Unified Standard Class 3B

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5,137 Products

Most Likely Products

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Hose Fitting Nuts

Hose Fitting Nuts

Connect fittings and compressed-gas nipples to pressure regulators and torches

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

Hex Nuts

Handle most general fastening needs

Panel Nuts

Extremely thin for tight spots such as electrical panels; also known as dress nuts

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish

All Results

Fastening and Joining

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish

Socket Head Screws

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

Wood Screws

Fasten material to wood or pieces of wood to each other

Hex Head Screws

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

Tighten and loosen by hand without the need for tools

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

Tapping Screws

Fasten a range of materials together without needing to tap the hole first

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Oval Head Screws

Oval Head Screws

A decorative, domed head sits above the surface when installed

Shoulder Screws

Shoulder Screws

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

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Rivet Nuts

Add threads to thin panels with access from only one side; also known as blind inserts

Hex Nuts

Handle most general fastening needs

Panel Nuts

Extremely thin for tight spots such as electrical panels; also known as dress nuts

Cap Nuts

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

Easy to tighten and loosen by hand for making frequent adjustments

Coupling Nuts

Connect and extend threaded rods

Sealing Nuts

Prevent leaks and block out contaminants with a rubber seal

Square Nuts

Flat sides won’t spin in channels and square holes

Locknuts

Hold fasteners in place to prevent loosening from vibration

Flange Nuts

The flange distributes pressure, so you don't need a washer

Fabric Snaps

Join soft, heavy fabrics such as leather and canvas

Turn-Button Fastener Bases

Turn-Button Fastener Bases

Mate with turn-button fastener eyelets to secure fabrics to solid surfaces

Turn-Button Fastener Eyelets

Turn-Button Fastener Eyelets

Pair with turn-button fastener bases to secure fabrics to solid surfaces

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

Binding Barrel Extensions

Binding Barrel Extensions

Add length to a binding barrel

Standoff Caps

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

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

Finishing Washers

Finishing Washers

Screw heads sit flush to prevent snagging and to create a neat, finished appearance

Shim Stock

Cut into custom shapes to align, space, and level components on dies, presses, and machinery

Shims

Align and space components on shafts, or level machinery, cabinets, and doors

Rivets

Join materials together permanently, especially when too thin or fragile to fasten with screws

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Unthreaded Inserts

Unthreaded Inserts

Reinforce, align, and adjust joints as you tighten a fastener

Nails

Drive into wood, plastic, drywall, and masonry

Split Rings

Secure clevis pins, connect components, or add a pull handle; also known as key rings

Dowel Pins

Align parts before assembly or use as a pivot, shaft, or hinge to join moving components

Quick-Release Pins

Quick-Release Pins

Fasten or remove components on equipment with a spring-loaded retaining ball

Cotter Pins

Secure the ends of clevis pins and shafts to keep components in place

Fluid Handling

Hose Fitting Nuts

Hose Fitting Nuts

Connect fittings and compressed-gas nipples to pressure regulators and torches

Pipe and Pipe Fittings

Pipe and Pipe Fittings

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

Tube and Tube Fittings

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

Hose Crimpers

Crimp ferrules onto hose to secure fittings

Float Rods

Connect valve bodies and floats to build or repair a float valve

Power Transmission

Lead Screw Nuts

Lead Screw Nuts

Mate with lead screws to move components in a straight line

Rod Ends

Use with connecting rods to support loads and control steering, tensioning, or pivoting motion

Electrical

Electrical-Terminal Washers

Electrical-Terminal Washers

Prevent wires from slipping out from under screw heads to keep electrical connections intact

Battery Terminal Adapters

Battery Terminal Adapters

Convert one battery terminal style to another

Conduit and Conduit Fittings

Conduit and Conduit Fittings

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

Building and Machinery Hardware

Knobs

Position, tighten, and secure fixtures and equipment

Window Latches

Hold windows and screens closed for security or open for ventilation

Window Openers

Operate crank- or push-to-open casement and awning windows

Facility and Grounds Maintenance

Toilet Tank Replacement Parts

Toilet Tank Replacement Parts

Replace parts such as flappers, fill valves, and floats in your toilet tank

Sink Drain Fittings

Sink Drain Fittings

Connect tailpieces, traps, and extension tubing to drains

Material Handling

Eyebolts

Route rope through the loop or attach hooks and shackles for lifting

Rope Cleats

Temporarily secure rope

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