M16 Fasteners | McMaster-Carr

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System of Measurement

Thread Size

Length

Thread Pitch

Material

Fastener Strength Grade/Class

Threading

Threaded on Both Ends

Fastener Head Type

Finish

Hot-Dipped Galvanized

Zinc Yellow-Chromate Plated

Thread Spacing

Thread Type

Metric Rounded Trapezoidal

Specifications Met

Thread Direction

Right Hand and Left Hand

Nut Type

Head Height

Head Width

Drive Style

Hex with Pilot Recess

Socket Head Profile

Height

Hex Nut Profile

Thread Fit

Metric Trapezoidal Class 7e

Metric Trapezoidal Class 7H

Metric Trapezoidal Class 8e

Unified Standard Class 2B

Not Rated

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

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

Yes

Export Control Classification Number (ECCN)

EAR99

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1,339 Products

Fastening and Joining

Hex Head Screws

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

297 products

Socket Head Screws

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

119 products

Set Screws

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

95 products

Flat Head Screws

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

46 products

Shoulder Screws

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

114 products

Rounded Head Screws

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

10 products

Carriage Bolts

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

13 products

Wood Screws

Fasten material to wood or pieces of wood to each other

6 products

Hex Nuts

Handle most general fastening needs

70 products

Panel Nuts

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

1 product

Locknuts

Hold fasteners in place to prevent loosening from vibration

34 products

Flange Nuts

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

28 products

Coupling Nuts

Connect and extend threaded rods

13 products

Thumb Nuts

Easy to tighten and loosen by hand for making frequent adjustments

5 products

Cap Nuts

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

4 products

Split Nuts

Swivel to attach at any point on a threaded rod for quick installation

1 product

Socket Nuts

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

1 product

Square Nuts

Flat sides won’t spin in channels and square holes

3 products

Tamper-Resistant Nuts

Hard to detach without special tools to prevent unwanted removal

3 products

Threaded Rods

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

98 products

Threaded Inserts

Create new threads or repair stripped threads

78 products

Press-Fit Nuts

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

1 product

Weld Nuts

Weld to metal surfaces to add permanent threads

4 products

Single-End Studs

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

2 products

Thread Adapters

Join threads of a different type, size, and gender

12 products

Taper Pins

Fit snugly into tapered holes to secure, position, and align components

26 products

Magnets

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

1 product

Threaded Insert Installation Tools

Install helical, key-locking, slotted-drive, and other threaded inserts

34 products

Power Transmission

Lead Screw Collars

Position components and limit travel along a lead screw

2 products

Bearing Nuts

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

5 products

Precision Lead Screws and Nuts

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

11 products

Connecting Rods

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

12 products

Rod Ends

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

51 products

Lead Screws and Nuts

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

6 products

Ball Screws and Nuts

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

7 products

Material Handling

Eyebolts

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

11 products

Hoist Rings

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

20 products

Eye Nuts

Pair with bolts or threaded rod to lift and hang components

6 products

U-Bolts

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

3 products

Fabricating and Machining

Setup Studs

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

36 products

Fixture Clamps

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

5 products

Fixture Kits

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

3 products

T-Slot Bolts

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

20 products

T-Slot Nuts

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

16 products

Lathe Chuck Jaw Nuts

Secure jaws to a CNC lathe chuck

1 product

C-Clamps

Temporarily secure workpieces together or to a work surface

1 product

Toggle Clamps

Lock workpieces onto worktables or objects

3 products

Building and Machinery Hardware

Cam Handles

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

1 product

Handle Nuts

Attach to threaded shafts to quickly turn the shafts by hand

2 products

Machine Handles

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

2 products

Leveling Mount Inserts

Slip onto equipment and furniture to add threaded-stud leveling feet

4 products

Electrical Power, Networking, and Controlling

Conduit Locknuts

Secure threaded conduit fittings to knockouts in outlet boxes or enclosures

4 products