Stainless Steel Rounds | McMaster-Carr

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System of Measurement

Length

Thread Size

Screw Size

Drive Style

Drilled Spanner

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Tamper-Resistant Hex

Tamper-Resistant Torx

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Fastener Head Type

Rounded Head Style

Shape

Ring with Tines

ID

Threading

Partially Threaded

Threaded on Both Ends

Finish

Corrosion-Resistant Coated

Threadlocker Coated

Head Diameter

Specifications Met

Federal Specification

ISO/IEC 18000-63

OSHA Compliant 29 CFR 1910.184

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

Shaft Diameter

Washer Type

Thickness

0.005" to 0.024"

0.010" to 0.013"

Hardness

Thread Type

Thread Direction

Right Hand and Left Hand

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21,592 Products

Raw Materials

Stainless Steel

Stainless Steel

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

Fastening and Joining

Lock Washers

Resist vibration to prevent fasteners from loosening

Washers

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

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Leveling Washers

Leveling Washers

Curved or tapered to compensate for uneven mounting surfaces

Finishing Washers

Finishing Washers

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

Spacers

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

Standoffs

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

Standoff Caps

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

Cap Nuts

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

Easy to tighten and loosen by hand for making frequent adjustments

Coupling Nuts

Connect and extend threaded rods

Socket Nuts

Install in recessed holes and tight spots where a wrench won’t fit; also known as Allen nuts

Rounded Head Screws

Rounded Head Screws

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

Carriage Bolts

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

Tapping Screws

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

Fastener Assortments

Fastener Assortments

Stay prepared by keeping fasteners in common sizes and materials on hand

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

Weld Nuts

Weld to metal surfaces to add permanent threads

Rivet Nuts

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

Press-Fit Nuts

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

Adhesive-Mount Nuts

Adhesive-Mount Nuts

Attach threads to material that’s too thin for a threaded insert

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

Threaded Rods

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

Cotter Pins

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

Power Transmission

Shafts

Transmit power, motion, and speed between machine components

U-Joints

Transfer torque between shafts at an angle; handle more torque and misalignment than flexible shafts

Shaft Collars

Hold and position parts on a shaft, or limit shaft movement

Shaft Couplings

Shaft Couplings

Connect two shafts to transfer rotary motion from one to the other

Springs

Apply and absorb force with compression, die, extension, torsion, and disc springs

Track Rollers

Support and carry objects as they move along conveyor systems

Round Belts

Flexible to send rotary power between unparallel shafts

Connecting Rods

Connecting Rods

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

Swivel Joints

Handle shaft misalignment where ball joint rod ends won’t fit; also known as spherical bearings

Chain and Belt Pulleys

Chain and Belt Pulleys

Pair with a compatible belt to transfer motion from a rotating shaft

Sleeve Bearings

Sleeve Bearings

With no moving parts, the plainest type of bearing

Bearing Lock Washers

Bearing Lock Washers

Lock bearing nuts in place to prevent loosening due to vibration

Turntable Bearings

Turntable Bearings

Support machinery that slowly turns or oscillates, such as a rotating hoist

Bearing Nuts

Hold bearings, bushings, pulleys, and gears in place on threaded shafts and spindles

Fluid Handling

Filter Mesh

Strain particles out of various substances

Sieve Bottoms

Catch material that passes through a sieve

Sieve Tops

Keep in the materials you're sifting, and block out contaminants

Sintered Filters

Sintered Filters

Tiny holes let particles such as air, gas, and vapor pass through while trapping contaminants

Floats

Replace a float or combine with a rod and valve body to build your own float valve

Sights

Observe and monitor the contents of pipes, tanks, and other containers

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

Material Handling

Pulleys

Mount or suspend to guide wire rope for lifting and pulling loads

Conveyor Belt Pulleys

Conveyor Belt Pulleys

Replace pulleys on conveyor belts or build new conveyor belts

Eyebolts

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

Chain Rings

Join chains and add connectors for binding, towing, and lifting

Routing Rings

Suspend wire and cable by feeding it through the eyehole

Building and Machinery Hardware

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Knobs

Position, tighten, and secure fixtures and equipment

Ball Knobs

Provide grip on control levers and push-pull rods

Steering Wheel Knobs

Steering Wheel Knobs

Attach to steering wheels for one-hand operation

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

Hand Wheels

Rotate to adjust machinery, valves, drill presses, and other equipment

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

Sealing

Tube Fitting Gaskets

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

Shaft Repair Sleeves

Shaft Repair Sleeves

Cover worn shafts with a smooth and protective sealing surface without machining

O-Rings

Fit snugly into a groove between parts to create a leak-resistant seal

Fabricating and Machining

Parts Baskets

Contain parts for cleaning and moving them in and out of washers

Drill Bushings

Fit in holes to guide drill bits and other cutting tools for precise and repeatable holes and cuts

Router Bits

Attach to routers and CNC machines to cut grooves, chamfers, and other detailed shapes

Locating and Support Buttons

Locating and Support Buttons

Secure and position workpieces and fixtures from the bottom or side

Clamp Holding Washers

Clamp Holding Washers

Replace worn washers on open-arm toggle clamps to keep holding screws in place

Facility and Grounds Maintenance

Shower Drain Grates

Shower Drain Grates

Keep solids from sliding down your drain

Floor Drain Grates

Floor Drain Grates

Block solids from falling down drains while liquids flow freely

Measuring and Inspecting

Radius Gauges

Check convex and concave radii of tools, patterns, and dies

Electrical

Conduit and Conduit Fittings

Conduit and Conduit Fittings

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

Containers, Storage, and Furniture

Trash Cans

Dispose of household garbage, recyclables, and even flammable waste

Safety Equipment

Safety Mirrors

See what's happening around corners, at intersections, down aisles, and over counters

Communication

Tag Rings

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

Tags

Hang throughout facilities to convey information

Message Plates

Fasten to doors, walls, and plate holders to identify locations and objects

RFID Tags

Track the location of inventory in your facility; pair with RFID reader/writers

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