Black Oxide Fasteners | McMaster-Carr

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Cadmium Yellow-Chromate Plated

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Chromate Conversion Coated

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Dyed

Electrocoated

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Titanium Carbon Nitride (TiCN) Coated

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Fastener Head Type

Material

Drive Style

Hex with Pilot Recess

Tamper-Resistant Torx

Tamper-Resistant Torx Plus

Threading

Threaded on Both Ends

Socket Head Profile

Thread Pitch

Head Diameter

Head Height

Thread Type

Drive Size

Fastener Strength Grade/Class

Thread Spacing

Thread Direction

Right Hand and Left Hand

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Shoulder Diameter

Specifications Met

Federal Specification

Shoulder Length

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

EAR99

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

Yes

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How can we improve?

15,962 Products

Fastening and Joining

Socket Head Screws

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

2,777 products

Rounded Head Screws

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

1,450 products

Flat Head Screws

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

1,193 products

Shoulder Screws

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

2,836 products

Set Screws

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

1,687 products

12-Point Screws

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

65 products

Hex Head Screws

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

346 products

Fastener Assortments

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

2 products

Thumb Screws

Tighten and loosen by hand without the need for tools

257 products

T-Bolts

Turn by hand for easy fastening, use as a handle, or attach as a point for straps and clamps

12 products

Wood Screws

Fasten material to wood or pieces of wood to each other

205 products

Tapping Screws

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

279 products

Carriage Bolts

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

59 products

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

32 products

Elevator Bolts

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

7 products

Studs

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

19 products

Flange Nuts

The flange distributes pressure, so you don't need a washer

177 products

Hex Nuts

Handle most general fastening needs

430 products

Panel Nuts

Extremely thin for tight spots such as electrical panels; also known as dress nuts

27 products

Push-Button Nuts

Disengage the threads to quickly slide along threaded rods

15 products

Coupling Nuts

Connect and extend threaded rods

105 products

Locknuts

Hold fasteners in place to prevent loosening from vibration

191 products

Thumb Nuts

Easy to tighten and loosen by hand for making frequent adjustments

61 products

Cap Nuts

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

17 products

Square Nuts

Flat sides won’t spin in channels and square holes

4 products

Washers

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

535 products

Leveling Washers

Curved or tapered to compensate for uneven mounting surfaces

84 products

Lock Washers

Resist vibration to prevent fasteners from loosening

195 products

Finishing Washers

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

26 products

Binding Barrels

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

289 products

Thread Adapters

Join threads of a different type, size, and gender

342 products

Threaded Rods

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

275 products

Retaining Rings

Hold components on a shaft

14 products

Fabric Snaps

Join soft, heavy fabrics such as leather and canvas

24 products

Threaded Inserts

Create new threads or repair stripped threads

43 products

Clevis Pins

Secure parts in place and lock with a cotter pin or retaining ring

87 products

Spring Pins

Squeeze and insert into tight holes to hold parts in place with tension

17 products

Dowel Pins

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

55 products

Shims

Align and space components on shafts, or level machinery, cabinets, and doors

7 products

Power Transmission

Lead Screw Collars

Position components and limit travel along a lead screw

41 products

Ball Screws and Nuts

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

41 products

Rod Ends

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

295 products

Precision Lead Screws

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

114 products

Precision Lead Screw Nut Flanges

Pair with precision lead screw nuts to make custom flange nuts that move items along lead screws

5 products

Lead Screws

Pair with lead screw nuts to move components in a straight line

14 products

Fabricating and Machining

T-Slot Nuts

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

206 products

T-Slot Bolts

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

91 products

T-Slot Cleaners

Scrape debris out of machine table T-slots

1 product

Setup Studs

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

266 products

Fixture Clamps

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

62 products

Fixture Kits

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

27 products

Bar Clamps

Secure large materials with adjustable arms for even pressure distribution

21 products

C-Clamps

Temporarily secure workpieces together or to a work surface

12 products

Toggle Clamps

Lock workpieces onto worktables or objects

4 products

Drill Bits

Create holes in metal, wood, plastic, concrete, and more

5 products

Lathe Tool Insert Holder Torx Keys

Replace the Torx keys for your lathe tool insert holder

4 products

Building and Machinery Hardware

Cam Handles

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

16 products

Knobs

Position, tighten, and secure fixtures and equipment

35 products

Machine Handles

Arms give you extra leverage to secure and position jigs, fixtures, and other equipment

5 products

Material Handling

Hoist Rings

Pivot to resist stress that would bend or break an eyebolt when lifting at an angle

236 products

Eyebolts

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

65 products

U-Bolt Plates

Reinforce mounted U-bolts for a more secure hold

37 products

U-Bolts

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

142 products

Twist Ties

Wind the ends to bundle cable and wire or close bags and sacks

22 products

Rope Cleats

Temporarily secure rope

1 product