M6 Threaded Rods | McMaster-Carr

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Diameter Diameter

8mm

	End Type End Type


Threaded	Straight

Made to Order	Tapped

Step Down	D-Profile

With Retaining Ring Grooves	Keyed

	Thread Length Thread Length

	Finish Finish

Black Oxide

Zinc Plated

Zinc Yellow-Chromate Plated

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Nut Type Nut Type


Hex	Coupling

Flange

	OD OD

642 Products

Threaded Rods and Studs

Metric High-Strength Steel Threaded Rods—Class 10.9

These Class 10.9 steel threaded rods are about 25% stronger than medium-strength steel rods.

Metric Very-High-Strength Steel
Threaded Rods—Class 12.9

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

Metric Medium-Strength Steel
Threaded Rods—Grade B7

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

Metric Fine-Thread Medium-Strength
Steel Threaded Rods—Grade B7

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.

Medium-Strength Steel Threaded Rods—Class 8.8

An economical alternative to Grade B7 and Grade B16 threaded rods, these metric Class 8.8 rods are suitable for fastening most machinery and equipment.

Metric Low-Strength Steel Threaded Rods

These metric threaded rods are about half the strength of medium-strength steel threaded rods for light duty hanging, mounting, and fastening.

Metric Fine-Thread Low-Strength Steel Threaded Rods

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

Metric Left-Hand Threaded
Low-Strength Steel Threaded Rods

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.

Metric 18-8 Stainless Steel Threaded Rods

Available in metric sizes, these 18-8 stainless steel threaded rods have good chemical resistance.

Metric Super-Corrosion-Resistant
316 Stainless Steel Threaded Rods

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.

Metric Nylon Threaded Rods

These metric threaded rods are made from nylon 6/6 and resist oil, grease, and solvents. They’re nonconductive, making them good for use around sensitive electrical components.

Metric Ultra-High-Temperature
Carbon Fiber Threaded Rods

Unlike metal rods, these metric threaded rods will not warp at extreme temperatures, making them ideal for heat treating and furnace fixtures.

Metric Brass Threaded Rods

These metric brass threaded rods are corrosion resistant in wet environments, electrically conductive, and nonmagnetic.

Metric Partially Threaded Studs

Screw the threaded end of these metric studs into a tapped hole and use the unthreaded end as a pivot point, hinge, shaft, or locator pin.

Steel Press-Fit Studs

These steel studs are zinc plated to resist corrosion in wet environments.

Stainless Steel Press-Fit Studs

18-8 stainless steel studs have good chemical resistance.

Metric Stainless Steel Wood Screw Threaded Studs

These metric 316 stainless steel studs have excellent resistance to chemicals and salt water. Also known as hanger bolts, use them to hang, mount, and fasten parts to wood structures.

Stainless Steel Adhesive-Mount Studs

316 stainless steel studs have excellent resistance to chemicals and salt water.

Steel Adhesive-Mount Studs

These steel studs are zinc plated to resist corrosion in wet environments.

Coupling Nuts

Metric Low-Strength Steel Coupling Nuts

For light duty applications, choose these metric-sized coupling nuts.

Metric Medium-Strength Steel Coupling Nuts—Class 8

Choose these locknuts to fasten standard metric threads. They’re Class 8 steel, so they can be used in most fastening applications.

Metric High-Strength Steel Coupling Nuts—Class 10

These metric-sized coupling nuts are Class 10 steel, so they’re about 25% stronger than medium-strength steel coupling nuts.

Metric 18-8 Stainless Steel Coupling Nuts

These metric coupling nuts have good chemical resistance.

Metric Super-Corrosion-Resistant
316 Stainless Steel Coupling Nuts

More corrosion resistant than 18-8 stainless steel coupling nuts, these metric nuts have excellent resistance to chemicals and salt water.

Aluminum Coupling Nuts

One-third the weight of steel, aluminum coupling nuts resist corrosion in wet environments.

Plastic Coupling Nuts

Plastic coupling nuts are chemical resistant, nonconductive, and lightweight.

Brass Coupling Nuts

Brass coupling nuts are corrosion resistant in wet environments and electrically conductive.

Stainless Steel Extra-Long Coupling Nuts

Stainless steel coupling nuts have excellent corrosion resistance in most environments.

Round Coupling Nuts

A smooth rounded body provides a finished look.

Female Thread Adapters

Left-Hand to Right-Hand Female Hex Thread Adapters

Often called sleeve nuts, these thread adapters fasten parts with right-hand threads to parts with left-hand threads.

Inch-to-Metric Female Hex Thread Adapters

Adapt threaded rods from inch to metric. These adapters connect two male-threaded fasteners, so you can change the gender of a mating part or increase or decrease its thread size. The hex-shaped body fits into the head of a standard wrench.

Metric-to-Metric Female Hex Thread Adapters

Increase or decrease metric thread size from one male-threaded part to another. Commonly used to connect two differently sized threaded rods, they have a hex-shaped body, so you can tighten them with a standard wrench.

Metric Ball Screws and Nuts

Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. Also known as single-start metric ball screws and nuts, these have a single thread that runs the length of the screw.

Connecting Rods

Designed for use with right-hand, internally threaded rod ends, these rods have right-hand threads on both ends. Use them for remote valve operators, throttle controllers, shifting mechanisms, and virtually any push/pull assembly.

Internally Threaded Connecting Rods

Designed for use with right-hand, externally threaded rod ends, these rods have right-hand threads on both ends. Use them for remote valve operators, throttle controllers, shifting mechanisms, and virtually any push/pull assembly.

Turnbuckle-Style Connecting Rods

Similar to turnbuckles, these rods have right-hand threads on one end and left-hand threads on the other so you can make a linkage that adjusts for tension. Add right- and left-hand threaded rod ends to build your linkages.

Internally Threaded Turnbuckle-Style Connecting Rods

Similar to turnbuckles, these rods have right-hand threads on one end and left-hand threads on the other so you can make a linkage that adjusts for tension.

Setup Studs

Secure setup clamps and fixtures to your machine table, or assemble heavy machines, such as engine mounts.

Vibration-Resistant Setup Studs

Also known as tap-end and fixture studs, these rods have friction-fit threads on one end to resist loosening and standard threads on the other side for attaching a nut.

Linear Motion Shafts

Threaded Linear Motion Shafts

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.

Tapped Linear Motion Shafts

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

Step-Down Linear Motion Shafts

A shoulder near the end of the shaft allows for easy positioning of housings, shaft supports, and collars.

Linear Motion Shafts with Retaining Ring Grooves

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

Rotary Shafts

Threaded Rotary Shafts

Attach threaded accessories, such as mixer propellers and fan blades, to the end of these shafts.

Flange-Mount Idler Rotary Shafts

Mount the flange to a machine or wall to support idler sprockets and pulleys in tensioning applications. They include washers and a nut to position your component and hold it in place.

Tapped Rotary Shafts

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

D-Profile Rotary Shafts

A flat surface area allows set screws to dig into the shaft for securely mounting gears, sprockets, and bearings.

Step-Down Rotary Shafts

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

Keyed Rotary Shafts

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

Rotary Shafts with Retaining Ring Grooves

Clip retaining rings into the grooves to separate and position gears, sprockets, and bearings.