Your Best Shoulder Bolts Manufacturer And Wholesaler In China

Your Reliable Shoulder Bolts Manufacturer In China

Established in 2005, Rochemetal is a leading shoulder bolt manufacturer and supplier in China, bringing over 20 years of expertise to the fastener industry.

With extensive manufacturing experience, we produce a wide range of shoulder bolts to meet diverse application needs, including:

By Material: Stainless steel, galvanized, brass, and precision shoulder bolts
By Size & Capacity: Heavy-duty, long, small, and large shoulder bolts
By Head Type: Hex head, flat head, and socket head shoulder bolts
By Metric Size: M5, M6, M8, M10 shoulder bolts, and more

Standards & Grades
We manufacture in accordance with international standards, including GB, DIN, ISO, ANSI/ASTM, BS, BSW, and JIS. Available grades include 4.8, 8.8, 10.9, and 12.9. OEM services are also available — simply provide your drawings or samples, and we’ll handle the rest.

Industries We Serve
Our shoulder bolts are widely used across multiple industries, including:

Automotive
High-speed rail
Aviation
Medical equipment

We have proudly designed and manufactured key components for world-renowned enterprises, and we remain committed to delivering high-quality products, exceptional service, and continuous improvement to every customer.

One-Stop Solution for All Your Shoulder Bolt Needs
Whatever your specifications, Rochemetal is your reliable one-stop shoulder bolt solution. Contact us today for a fast, competitive quote!

Whatever Type of Shoulder Bolts,
RocheMetal can Fulfill the One Stop Solution for You.

Stainless steel shoulder bolts

Metric shoulder bolts

Shoulder bolts fastenal

Precision shoulder bolts

Black shoulder bolts

Flange shoulder bolts

Socket head shoulder bolts

Titanium shoulder bolts

Galvanized shoulder bolts

Why RocheMetal Can Be Your Reliable Shoulder Bolts Manufacturer and Supplier ?

Over 20 Years Shoulder Bolts Manufacturing Experience

Rocheinudstry is a leader of the shoulder bolts manufacturer with rich experience

12 Hours troubleshooting

We promise solve all your product problems within 12 hours

SGS, ISO And Rohs Standard Qualified

Our products have been certified by SGS ,RoHS, CE, ISO etc

24/7 Online Support

We have 24/7 online service to support your eye bolts requirements, contact us now.

3 Hours quote

You will get an instant quote within 3 hours

Flexible Payment Options

Our payment options include Paypal, T/T, L/C or O/A.

RocheMetal: Your Premier Choice Of All Types of Shoulder Bolts

Rochemetal is specialized in shoulder bolts manufacturing since 2005 with rich experience in manufacturing different types of shoulder bolts, such as stainless steel shoulder bolts, galvanized shoulder bolts, precision shoulder bolts, heavy duty shoulder bolts, long shoulder bolts, small shoulder bolts, large shoulder bolts, brass shoulder bolts, metric shoulder bolts, hex head shoulder bolts, flat head shoulder bolts, socket head shoulder bolts, M5 shoulder bolts, M6 shoulder bolts, M8 shoulder bolts, M10 shoulder bolts, etc.

Frequently asked questions about shoulder bolts

1. What is a shoulder bolt and what is it used for?

A shoulder bolt (also called a stripper bolt or shoulder screw) is a type of fastener featuring three distinct sections: a smooth, unthreaded cylindrical shoulder, a threaded portion, and a head. The shoulder acts as a precision shaft or pivot point, making these bolts ideal for applications requiring rotational movement, such as pulleys, linkages, bearings, sliding mechanisms, and as guides in stamping dies.

2. How do I measure a shoulder bolt correctly?

Shoulder bolts are measured by three key dimensions:

Shoulder diameter – the diameter of the smooth, unthreaded section
Shoulder length – the length of the unthreaded section (does not include the head or threads)
Thread size and length – the diameter, pitch, and length of the threaded portion

The shoulder diameter is always larger than the thread’s major diameter, which distinguishes shoulder bolts from standard bolts.

3. What materials are shoulder bolts made from?

Shoulder bolts are commonly manufactured from:

Alloy steel (often heat-treated for high strength)
Stainless steel (typically 18-8 or 316 for corrosion resistance)
Brass (for non-magnetic or decorative applications)
Titanium (for lightweight, high-strength needs)

The choice of material depends on load requirements, environmental conditions, and corrosion resistance needs.

4. What’s the difference between a shoulder bolt and a regular bolt?

The main difference lies in design and function. A regular bolt has threads running along most of its shank and is primarily used to clamp parts together. A shoulder bolt has a precisely machined, unthreaded shoulder that serves as a bearing surface, axle, or pivot — allowing components to rotate or slide smoothly around it. Standard bolts focus on clamping; shoulder bolts focus on motion and alignment.

5. How tight should a shoulder bolt be torqued?

Shoulder bolts should be tightened until the bottom of the shoulder bottoms out against the mating surface — not over-torqued like a standard bolt. The clamping force comes from the shoulder seating firmly, not from the threads. Torque values vary by size and material; always refer to manufacturer specifications. Over-tightening can damage threads or distort components, while under-tightening can allow loosening during operation.

6. What head styles are available for shoulder bolts?

The most common head styles include:

Socket head (hex socket) – the most popular, allowing for high torque application with an Allen wrench
Slotted head – used in lower-torque or decorative applications
Hex head – used where a wrench can be applied externally
Flat/countersunk head – for flush-mount applications

Socket head shoulder bolts are by far the most widely used in industrial and machinery settings.