Metric Steel Bars | McMaster-Carr

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System of Measurement

Material

Steel Grade

1008-1010 Low-Carbon Steel

1010 Low-Carbon Steel

1018 Low-Carbon Steel

Diameter

Length

Shape

Width

Thickness

Tolerance Rating

Mechanical Finish

Hardness

Hardness Rating

Performance

Highly Heat Resistant

Heat Treatment

End Type

Thread Size

Shaft Type

Round with Support Rail

Specifications Met

Height

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

Yes

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Export Control Classification Number (ECCN)

For Use On

4,304 Products

Raw Materials

Steel

Strong, machinable, and weldable—all with material certificates for traceability

554 products

Stainless Steel

Resists corrosion and chemicals in most environments—all with material certificates for traceability

248 products

Power Transmission

Linear Shafts

Pair with linear bearings and shaft supports to create smooth, precise motion

358 products

Rotary Shafts

Pair with gears, sprockets, and bearings to transmit rotary motion

324 products

Linear Shaft Supports

Support linear shafts to prevent bending and rolling under loads

12 products

Connecting Rods

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

200 products

Fastening and Joining

Machine Key Stock

Cut a custom length to transfer torque from shafts to components such as gears and sprockets

266 products

Machine Keys

Transmit torque from rotating shafts to gears, sprockets, and other machine parts

595 products

Dowel Pins

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

1,138 products

Magnets

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

2 products

Building and Machinery Hardware

T-Slotted Framing and Fittings

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

461 products

Locking-Slotted Framing Fasteners

Secure brackets and other accessories to locking-slotted rails

3 products

Clamp-On Framing Fasteners

Tighten to hold clamp-on framing in place

1 product

Fabricating and Machining

Lathe Tool Insert Holders

Secure inserts within lathes to add cuts and grooves to workpieces

56 products

Lathe Tool Inserts

Pair with lathes to add cuts and grooves to workpieces

16 products

Lathe Tools

Shape workpieces as they rotate on a lathe

3 products

Fluid Handling

Pipe

Join with fittings and additional lengths of pipe

61 products