5/16"-24 Threaded Rods | McMaster-Carr

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

REACH Compliant

	Nut Type Nut Type


Hex	Coupling

	Fastener Strength Grade/Class Fastener Strength Grade/Class

	Shaft Length Shaft Length

	Shaft Diameter Shaft Diameter

5/16"

	OD OD

5/16"

27/64"

7/16"

	Gender Gender

232 Products

Threaded Rods and Studs

High-Strength Steel Threaded Rods

Comparable to Grade 8 steel, these threaded rods have a tensile strength of 150,000 psi, making them about 25% stronger than medium-strength steel rods.

Medium-Strength Steel Threaded Rods—Grade B7

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

Left-Hand Threaded Medium-Strength
Steel Threaded Rods—Grade B7

Tighten these threaded rods by turning them to the left; once fastened, they resist loosening from counterclockwise motion.

Low-Strength Steel Threaded Rods

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

18-8 Stainless Steel Threaded Rods

18-8 stainless steel threaded rods have good chemical resistance.

18-8 Stainless Steel Threaded Rods—Grade B8

Grade B8 threaded rods meet the pressure and temperature requirements of ASTM A193 and are often used to secure pressure tanks, valves, and flanges. They have good chemical resistance.

Super-Corrosion-Resistant 316
Stainless Steel Threaded Rods

More corrosion resistant than 18-8 and 410 stainless steel threaded rods, these 316 stainless steel rods have excellent resistance to chemicals and salt water.

Aluminum Threaded Rods

One-third the weight of steel, aluminum threaded rods resist corrosion in wet environments.

Brass Threaded Rods

Brass threaded rods are corrosion resistant in wet environments, electrically conductive, and nonmagnetic.

Hex Drive Threaded Rods

A hex drive on one end allows these rods to be turned with a hex key for ease of installation.

Partially Threaded Studs

Screw these studs into a tapped hole and use them as a pivot point, hinge, shaft, or locator pin.

Partially Threaded Studs with Cotter Pin

Also known as hood pins, these studs have a cotter pin lodged through a drilled hole in the unthreaded portion for light duty holding, such as securing access panels and locking other fasteners.

Coupling Nuts

Low-Strength Steel Coupling Nuts

About half the strength of medium-strength steel coupling nuts, these nuts are for light duty fastening applications.

Medium-Strength Steel Coupling Nuts—Grade 5

Made from Grade 5 steel, these inch-sized coupling nuts are suitable for most applications.

High-Strength Steel Coupling Nuts—Grade 8

Made from Grade 8 steel, these nuts are about 25% stronger than medium-strength steel coupling nuts. Furnished in inch thread sizes.

18-8 Stainless Steel Coupling Nuts

These coupling nuts have good chemical resistance.

Super-Corrosion-Resistant 316
Stainless Steel Coupling Nuts

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

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

Inch-to-Inch Female Hex Thread Adapters

Connect two differently sized male-threaded parts, such as threaded rods, and tighten with a standard wrench.

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.

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.

Threaded Rods and Studs

High-Strength Steel Threaded Rods

Medium-Strength Steel Threaded Rods—Grade B7

Left-Hand Threaded Medium-StrengthSteel Threaded Rods—Grade B7

Low-Strength Steel Threaded Rods

18-8 Stainless Steel Threaded Rods

18-8 Stainless Steel Threaded Rods—Grade B8

Super-Corrosion-Resistant 316Stainless Steel Threaded Rods

Aluminum Threaded Rods

Brass Threaded Rods

Hex Drive Threaded Rods

Partially Threaded Studs

Partially Threaded Studs with Cotter Pin

Coupling Nuts

Low-Strength Steel Coupling Nuts

Medium-Strength Steel Coupling Nuts—Grade 5

High-Strength Steel Coupling Nuts—Grade 8

18-8 Stainless Steel Coupling Nuts

Super-Corrosion-Resistant 316Stainless Steel Coupling Nuts

Brass Coupling Nuts

Stainless Steel Extra-Long Coupling Nuts

Round Coupling Nuts

Female Thread Adapters

Inch-to-Inch Female Hex Thread Adapters

Left-Hand to Right-Hand Female Hex Thread Adapters

Inch-to-Metric Female Hex Thread Adapters

Connecting Rods

Connecting Rods

Internally Threaded Connecting Rods

Turnbuckle-Style Connecting Rods

Internally Threaded Turnbuckle-Style Connecting Rods

Left-Hand Threaded Medium-Strength
Steel Threaded Rods—Grade B7

Super-Corrosion-Resistant 316
Stainless Steel Threaded Rods

Super-Corrosion-Resistant 316
Stainless Steel Coupling Nuts