M12 Shoulder Bolts | McMaster-Carr

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About Shoulder Screws

Metric Alloy Steel Shoulder Screws

Comparable to Class 12.9 steel.

Short-Thread Alloy Steel Shoulder Screws

Use these screws in thin materials; they have a shorter threaded portion than our standard shoulder screws. They’re comparable in strength to Grade 8 steel.

Metric Same-Size Thread
Alloy Steel Shoulder Screws

The metric-sized threads on these screws are the same diameter as the shoulder. Comparable in strength to Class 12.9 steel.

Metric 18-8 Stainless Steel Shoulder Screws

These screws have metric thread sizes. They are 18-8 stainless steel for 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.

Metric 316 Stainless Steel Shoulder Screws

For metric thread sizes with excellent resistance to chemicals and salt water, choose these 316 stainless steel shoulder screws.

Metric Steel Hex Head Shoulder Screws

Also known as wheel and axle bolts, these metric screws have an unthreaded shoulder that acts as a shaft, so material attached to the threaded end can rotate.

Eyebolts—For Lifting

Also known as machinery eyebolts.

Eyebolts with Nuts—For Lifting

Also known as nut eyebolts, these are designed for through-hole applications.

Rotating Eyebolts—For Lifting

Unlike conventional eyebolts, you can rotate the eye 360° to match the angle of your load.

Nylon-Coated Eyebolts—For Lifting

Route wire and cable through the smooth eye without snagging.