Aluminum Fasteners | McMaster-Carr

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Chromate Conversion Coated

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Thread Length

Thickness

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T-Slotted Framing Rail Profile

6,387 Products

Most Likely Products

Rivets

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

570 products

Socket Head Screws

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

102 products

Hex Head Screws

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

61 products

Hex Nuts

Handle most general fastening needs

54 products

T-Slotted Framing Structural Brackets

Join T-slotted rail surfaces and corners to build virtually any structure

379 products

All Results

Fastening and Joining

Socket Head Screws

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

102 products

Hex Head Screws

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

61 products

Rounded Head Screws

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

80 products

Flat Head Screws

Fit in countersunk holes for a flush finish

50 products

Thumb Screws

Tighten and loosen by hand without the need for tools

20 products

Tapping Screws

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

12 products

Shoulder Screws

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

19 products

Rivets

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

570 products

Hex Nuts

Handle most general fastening needs

54 products

Tamper-Resistant Nuts

Hard to detach without special tools to prevent unwanted removal

7 products

Locknuts

Hold fasteners in place to prevent loosening from vibration

7 products

Coupling Nuts

Connect and extend threaded rods

21 products

Cap Nuts

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

6 products

Binding Barrels and Screws

Thread together for a low-profile fastener

38 products

Binding Barrels and Caps

Create a low-profile fastener with a press or hammer

6 products

Binding Barrel Extensions

Add length to a binding barrel

32 products

Standoffs

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

1,131 products

Spacers

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

1,176 products

Standoff Caps

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

1 product

Rivet Nuts

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

87 products

Press-Fit Nuts

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

24 products

Threaded Inserts

Create new threads or repair stripped threads

132 products

Washers

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

192 products

Lock Washers

Resist vibration to prevent fasteners from loosening

9 products

Sealing Washers

Prevent fluids from leaking around fasteners

50 products

Leveling Washers

Curved or tapered to compensate for uneven mounting surfaces

6 products

Finishing Washers

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

5 products

Captive Pins

Press into holes in thin materials like panels and circuit boards to permanently join or align them

8 products

Dowel Pins

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

26 products

Quick-Release Pins

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

7 products

Clevis Pins

Secure parts in place and lock with a cotter pin or retaining ring

17 products

Cotter Pins

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

6 products

Shim Stock

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

79 products

Shims

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

157 products

Threaded Rods

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

157 products

Thread Adapters

Join threads of a different type, size, and gender

699 products

Anchors

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

1 product

Unthreaded Inserts

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

10 products

Nails

Drive into wood, plastic, drywall, and masonry

10 products

Weld-Backing Tape

Stick to the back of welding seams to contain spatter and prevent gases from weakening the weld

11 products

Tape

Bind, seal, and mark surfaces

126 products

Snap-In Nut Tools

Compress the legs of snap-in nuts so they're easy to install and remove

1 product

Building and Machinery Hardware

T-Slotted Framing Structural Brackets

Join T-slotted rail surfaces and corners to build virtually any structure

379 products

T-Slotted Framing Braces

Reinforce joined corners of T-slotted rails for a sturdier connection than structural brackets

73 products

T-Slotted Framing Brace Ends

Pair with a T-slotted rail to make a brace of any length

16 products

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

19 products

Locking-Slotted Framing and Fittings

Make platforms, bases, and other structures that stand up to more movement than T-slotted framing

6 products

Bolt-Together Framing and Fittings

Fasten through equally spaced holes to build and adjust guards, tables, and racks

2 products

Window Latches

Hold windows and screens closed for security or open for ventilation

3 products

Knobs

Position, tighten, and secure fixtures and equipment

56 products

Machine Handles

Arms give you extra leverage to secure and position jigs, fixtures, and other equipment

4 products

Material Handling

L-Tracks

Slide on fittings to secure cargo inside vans and trucks; lighter weight and slimmer than E-Tracks

6 products

E-Tracks

Add straps and other parts to keep cargo from moving inside vans and trucks; stronger than L-Tracks

1 product

Rope Hooks

Add connection points for rope

4 products

Rope Guides

Route and protect rope

2 products

Webbing Buckles

Pair with webbing to make adjustable straps

4 products

Rope Cleats

Temporarily secure rope

9 products

U-Bolt Plates

Reinforce mounted U-bolts for a more secure hold

10 products

U-Bolts

Anchor heavy pipe, tube, and conduit; stronger than routing clamps and hangers

10 products

Loop Clamps

Hold pipe snug against the mounting surface to prevent movement that may cause breakage

92 products

Carabiners

Hook onto rope and webbing to quickly connect objects, fittings, and other lengths of rope

33 products

Cable Ties

Bundle and secure cable, wire, and hose; also known as zip ties

5 products

Power Transmission

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

243 products

Lead Screws and Nuts

Components travel along a screw with broad, square threads to clamp and lift heavy loads

7 products

Fabricating and Machining

Fixturing Clamps

Secure your workpiece to a fixture table so it won't move during machining

45 products

T-Slot Covers

Snap into T-slots to block chips, debris, and small parts from falling in

6 products

Communication

Tag Rings

Loop onto tags to attach them to lanyards, key rings, and other objects

2 products

Fluid Handling

Pipe and Pipe Fittings

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

10 products

Electrical

DIN Rail Mounting Adapters

Attach to components not made for DIN rail and clip on to install

3 products

Conduit and Conduit Fittings

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

6 products