10-24 Shoulder Bolts | McMaster-Carr

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About Shoulder Screws

Alloy Steel Shoulder Screws

Comparable in strength to Grade 8 steel. These screws have inch thread sizes.

Alloy Steel Shoulder Screws
with Material Certification

These shoulder screws come with a traceable lot number and material test report. Similar in strength to Grade 8 steel.

18-8 Stainless Steel Shoulder Screws

Made from 18-8 stainless steel, these inch-sized shoulder screws have good chemical resistance.

Same-Size Thread 18-8
Stainless Steel Shoulder Screws

With inch-sized threads the same diameter as the shoulder, these screws can handle heavy loads. They’re 18-8 stainless steel for good chemical resistance.

316 Stainless Steel Shoulder Screws

More corrosion resistant than 18-8 stainless steel shoulder screws, these have excellent resistance to chemicals and salt water. These screws have inch thread sizes.

High-Strength 17-4 PH Stainless
Steel Shoulder Screws

Shoulder screws made of 17-4 PH stainless steel are nearly twice as strong as 18-8 stainless steel and have the same corrosion resistance. These screws have inch thread sizes.

Nylon Shoulder Screws

These shoulder screws are chemical resistant, nonconductive, and lightweight.

Aluminum Shoulder Screws

One-third the weight of steel, aluminum shoulder screws are lightweight and have good corrosion resistance.

Titanium Shoulder Screws

Titanium shoulder screws have a high strength-to-weight ratio and are more resistant to acids and salt water than nickel shoulder screws.

Nickel Alloy Shoulder Screws

Nickel alloy shoulder screws are more resistant to acids and salt water than stainless steel shoulder screws.

Low-Profile Shoulder Screws

The head height of these screws is about two-thirds the head height of a standard shoulder screw. Use them in low-clearance applications such as inside machines.

Ultra-Low-Profile Shoulder Screws

These have a head height about one-third the head height of a standard shoulder screw.

Alloy Steel Thread-Locking Shoulder Screws

A locking element on the threads adds friction to resist loosening. Comparable to Grade 8 steel, these alloy steel shoulder screws are the strongest we offer.

18-8 Stainless Steel
Thread-Locking Shoulder Screws

These shoulder screws have good chemical resistance.

Super-Corrosion-Resistant 316 Stainless
Steel Thread-Locking Shoulder Screws

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

Flat Head Shoulder Screws

These shoulder screws are angled under the head to sit flush in countersunk holes.

Left-Hand Threaded Shoulder Screws

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

Shoulder Screws with Hex-Drive Tip

With a hex socket at the tip as well as the head, you can fasten these shoulder screws from the tip when the head cannot be reached.

Precision Shoulder Screws

18-8 Stainless Steel Precision Shoulder Screws

Slotted 18-8 Stainless Steel
Precision Shoulder Screws

Alloy Steel Precision Shoulder Screws

Comparable to Grade 8 steel, these screws are the strongest precision shoulder screws we offer.

Slotted Low-Profile Precision Shoulder Screws

Steel Shoulder Screws for Binding Barrels

Designed with a shoulder for the strength to handle side and shear loads.