Metric Screws | McMaster-Carr

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Beryllium Copper

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Threaded on One End

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Corrosion-Resistant Coated

Hot-Dipped Galvanized

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Metric Rounded Trapezoidal

Metric Trapezoidal

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Specifications Met

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Right Hand and Left Hand

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RoHS

Compliant with Exemptions

DFARS Specialty Metals

REACH

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

Export Control Classification Number (ECCN)

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Fastening and Joining

Socket Head Screws

Socket Head Screws

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

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 that won't snag on surrounding parts

Hex Head Screws

Hex Head Screws

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

Tapping Screws

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

Shoulder Screws

Shoulder Screws

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

Set Screws

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

Tighten and loosen by hand without the need for tools

Oval Head Screws

Oval Head Screws

The domed top sits slightly above the surface of countersunk holes for a decorative look

Carriage Bolts

A smooth head provides a finished look while a square neck keeps the bolt in place when using a nut

12-Point Screws

12-Point Screws

12 contact points handle more torque than a hex head while a flange eliminates the need for a washer

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Wood Screws

Fasten material to wood or pieces of wood to each other

Fastener Assortments

Fastener Assortments

Keep a variety of common screws, nuts, and washers on hand

Studs

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

Elevator Bolts

Create a flush joint to allow movement in tight spaces such as grain elevators and belting systems

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

Hold-Down Bolts

Hold-Down Bolts

Hold material under the bent head while the other end is tightened down with a nut

Threaded Rods

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

Rivet Nuts

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

Weld Nuts

Weld to metal surfaces to add permanent threads

Single-End Studs

Single-End Studs

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

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Standoffs

Separate, position, or connect components in assemblies

Binding Barrels

Binding Barrels

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

Spring Plungers

Spring Plungers

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

Captive Pins

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

Anchors

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

L-Keys

Turn fasteners from either end and reach into tight spots

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Screwdrivers

Tighten and loosen screws

T-Handle Keys

To turn fasteners in hard-to-reach spots, there's a long shaft and a grip for your whole hand

Torque Screwdrivers

Torque Screwdrivers

Apply precise torque as you fasten screws to prevent overtightening

L-Key Handles

Comfort with every turn—these upgrade your L-keys into T-handle keys

Driver Extension Adapters

Driver Extension Adapters

Create a tool that’s as long as you need to reach deeply recessed fasteners

Magnets

Attract or repel metal objects to hang, secure, or position them

Power Transmission

Precision Lead Screws and Nuts

Precision Lead Screws and Nuts

Pair with a motor for accurate starts and stops in automated motion and positioning applications

Ball Screws and Nuts

Ball Screws and Nuts

Provide smooth travel where high speeds, accurate positioning, and repeatable movement are required

Connecting Rods

Connecting Rods

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

End Supports for Ball Screws and Precision Lead Screws

End Supports for Ball Screws and Precision Lead Screws

Brace and secure the ends of ball screws and precision lead screws

Lead Screws and Nuts

Lead Screws and Nuts

Move components in a straight line in clamping and heavy duty lifting and lowering applications

Lead Screw Collars

Lead Screw Collars

Position components and limit travel along a lead screw

Ball Screw/Splines and Bearings

Ball Screw/Splines and Bearings

Transmit rotary power, move loads along the shaft, or do both at once

Roller Screws and Nuts

Roller Screws and Nuts

Create more points of contact to handle much higher loads than ball screws and nuts of the same size

Building and Machinery Hardware

Knobs

Position, tighten, and secure fixtures and equipment

Pull Knobs

Use a knob to open and close cabinets, drawers, and doors

T-Slotted Framing Fasteners

T-Slotted Framing Fasteners

Secure brackets and other accessories to T-slotted rails

Clamp-On Framing Fasteners

Clamp-On Framing Fasteners

Tighten to hold clamp-on framing in place

Locking-Slotted Framing Fasteners

Locking-Slotted Framing Fasteners

Secure brackets and other accessories to locking-slotted rails

Fabricating and Machining

Setup Studs

Secure setup clamps and fixtures to your machine table or assemble heavy machines

T-Slot Bolts

Secure clamps and workpieces to machine tables with quicker setup than a T-slot nut and stud

Fixture Clamps

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

Grippers

Clamp against uneven or irregularly shaped parts such as castings for a secure hold

Fixture Kits

Everything needed to mount workpieces of different sizes to your machine table

Material Handling

Eyebolts

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

Eye Nuts

Pair with bolts or threaded rod to lift and hang components

Conveyor T-Slot Bolts

Conveyor T-Slot Bolts

Drop into the T-slot to mount components

Communication

Reference Charts

Reference Charts

Check decimal equivalents, drill sizes, or specifications for socket screws

Measuring and Inspecting

Transfer Punches

Transfer Punches

Mark the center of an existing hole onto a separate workpiece

Coordinate Measuring Machine Fixture Clamps

Coordinate Measuring Machine Fixture Clamps

Keep workpieces in place for hands-free measuring and inspecting

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