Aluminum Bolts | McMaster-Carr

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3,109 Products

Fastening and Joining

Hex Head Screws

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

207 products

Tapping Screws

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

210 products

Socket Head Screws

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

102 products

Rounded Head Screws

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

80 products

Thumb Screws

Tighten and loosen by hand without the need for tools

28 products

Flat Head Screws

Fit in countersunk holes for a flush finish that won't snag on surrounding parts

50 products

Captive Panel Screws

Secure panels and enclosures while still having access to them

87 products

Shoulder Screws

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

19 products

Rivet Nuts

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

508 products

Weld Nuts

Weld to metal surfaces to add permanent threads

5 products

Threaded Rods

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

157 products

Standoffs

Separate, position, or connect components in assemblies

364 products

Standoff Caps

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

1 product

Thread Adapters

Join threads of a different type, size, and gender

460 products

Binding Barrels

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

156 products

Captive Pins

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

8 products

Anchors

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

1 product

Rivets

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

9 products

Spring Plungers

Apply accurate, consistent pressure for positioning, indexing, and ejecting parts

24 products

Screw Starters

Grip and start turning screws that are too small to hold or located in hard-to-reach spots

6 products

Torque Screwdrivers

Apply precise torque as you fasten screws to prevent overtightening

67 products

Nutdrivers

Tighten and loosen nuts and bolts

10 products

Screwdrivers

Tighten and loosen screws

3 products

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

33 products

Stud Welders

Join studs and pins to metal, leaving no marks on the back of the material

3 products

Building and Machinery Hardware

Strut Channel Nuts

Fasten on threaded rod to connect components to strut channel

1 product

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

2 products

Cam Handles

For fast clamping, push down on the handle to draw two parts together

48 products

Door Tracks and Fittings

Hang panels to slide over openings when there’s not space for a swinging door

8 products

Deadbolt Locks

Require a key or combination to unlock from the outside

2 products

Power Transmission

Connecting Rods

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

243 products

Rod Ends

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

16 products

Precision Lead Screws

Pair with precision lead screw nuts for accurate starts and stops in your assembly

4 products

Linear Drive Nuts

Create a linear positioning system on a rotary shaft without a lead screw

3 products

Fluid Handling

Tube Elbows

Change the direction of flow when joining lengths of tube

2 products

Fabricating and Machining

Fixture Clamps

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

63 products

T-Slot Nuts

Combine with setup studs or bolts to mount fixtures to machine tables

6 products

Material Handling

Jacks

Lift, hold, push, and position heavy objects

83 products

U-Bolts

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

20 products