With a thickness that's precision ground to a tight tolerance, these bars are sometimes called flat stock.

Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength.

Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength.

Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength.

Ready for turning in a lathe, these rods are precision ground and held to a strict straightness tolerance.

A lead-free alternative to 12L14, 1215 carbon steel contains the same amount of sulfur and phosphorus for excellent machinability. It is often used for shaft couplings, studs, and pins.

Stronger than low-carbon steel with equally good machinability, 1045 carbon steel is widely used for bolts, studs, and shafts.

Also known as chrome-moly steel, this versatile 4140 alloy steel is used for a wide range of parts, such as gears, axles, shafts, collets, and die holders. It resists fracturing from repeated stress.

Often called ETD-150, these rods are made from a modified version of 4140 alloy steel and have been drawn at high temperatures for excellent strength.

Also known as chrome steel, 52100 is an extremely hard and wear-resistant material. These balls are often used in bearings.

Polished to either a brushed or mirror-like finish, this material is often used to fabricate decorative enclosures and industrial workstations.

Widely used for fabricating fittings and fasteners, 303 stainless steel machines quickly without sticking to cutting tools.

These balls are hardened for increased wear and abrasion resistance.

The addition of molybdenum gives 316 stainless steel excellent corrosion resistance. Use it in a variety of marine and chemical-processing applications.

Each piece is precision ground to offer tighter tolerances than standard 17-4 PH stainless steel.

These precision-ground sheets and bars are held to a tight thickness tolerance.

These rods, also known as drill blanks, have an undersized diameter for machining your own jobbers'-length drill bits.

Precisely align, level, and adjust spacing on fasteners and shafts with these shims.

Spin these shims onto screw threads to extend the shoulder length.

The slot lets you insert, remove, and adjust the shims without disassembling your machinery.

Use a single shim on feet or positioning arms that are secured with multiple fasteners. The slots let you insert, remove, and adjust the shims without disassembling your machinery. Also known as finger shims.

Class 12.9 rods are about 20% stronger than Class 10.9 threaded rods and are for use in heavy machinery.

These metric Grade B7 fine-threaded rods meet the pressure and temperature requirements of ASTM A193 and are often used to secure pressure tanks, valves, and flanges.

About half the strength of medium-strength steel threaded rods, use these metric fine-thread rods for light duty hanging, mounting, and fastening.

These metric threaded rods tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. About half the strength of medium-strength steel threaded rods, use them for light duty hanging, mounting, and fastening.

These metric 316 stainless steel threaded rods are more corrosion resistant than 18-8 and 410 stainless steel threaded rods and have excellent resistance to chemicals and salt water.

Straight keys, with a square or rectangular cross section, are the most common type of key. Install them in keyways to transmit torque from shafts to gears and other components.

Woodruff keys work well near shaft shoulders and on tapered shafts. These keys have a rounded shape that makes them easy to remove when parts need to be taken apart frequently. Use them in light duty applications to connect gears and other components to shafts. Also known as half moon keys.

Thread a screw through the tapped hole to pop these keys out of a keyway. When installed, they fill oval keyways completely, reducing stress on the key and shaft. The rounded ends make it easy to slide gears, hubs, and other components into place.

These assortments include various sizes of key stock—choose a piece and cut it to your desired length.

A rounded bottom allows these keys to rock in their seat to relieve stress on the shaft caused by vibration or misalignment.

Combine with a machine key to transmit torque to gears, sprockets, and other power transmission components.

Thread these shafts into a tapped hole to support idler sprockets and pulleys in tensioning applications. They have a retaining-ring groove, retaining ring, and spacers to position your component and hold it in place.

Connect these internally threaded shafts directly to threaded components, or use a fastener to secure.

A shoulder near the end of the shaft provides a stop for gears, sprockets, and bearings.

Mount these externally threaded shafts into tapped holes rather than using a shaft support, or attach a hex nut, shaft collar, or other threaded accessory.

Internal threads allow you to mount these shafts onto threaded studs and fasteners, no shaft supports needed.

Clip retaining rings into the grooves to separate and position collars, supports, and housings.

Serrated grooves grip the lip of the channel.

Use with hex nuts to connect threaded rod.

These springs are more corrosion resistant than standard compression springs.

Use these steel springs in noncorrosive environments.

Install these springs, also known as bearing preload washers, against ball bearings to reduce noise and unwanted movement along the shaft.

Made of 17-7 PH stainless steel with multiple rows of waves, these springs are more corrosion resistant than steel springs and handle greater loads than standard wave disc springs.