Shoulder Screws

Custom fasteners Manufacturer

Stainless steel Precision Socket Head Shoulder Screws&Bolts

Type: socket head screws, precision bolts, socket head shoulder screws, nylon patch shoulder bolts

Material: Stainless steel

Finish: Passivated


Standard: Inches, Metric


Precision Socket Head Shoulder Screws also as known as shoulder screws or tripper bolts, are threaded fasteners that have a cylindrical head with a hexagon socket and a precision unthreaded shoulder. Socket Head Shoulder Bolts can withstand higher transverse loads and can be used for a variety of applications. allow for the rotation of pulleys, linkages, and other moving parts in engines and mechanical applications.

How to Choose the Shoulder Bolts

Locking will inevitably occur when using Precision Socket Head Shoulder Screws because the shoulder screw themselves have good anti-corrosion properties, but when their surface is damaged, a protective film will be formed on the metal surface of the shoulder screw to prevent The screws corroded again. When stainless steel fasteners are locked, the pressure and heat generated between the teeth will make this layer of protective film lose its effect, causing blockage between the threads, and the locking phenomenon will gradually occur. So in order to prevent or reduce this phenomenon from happening, what should we do?

  1. Choose the right shoulder screws. Before using custom shoulder screws, you must first confirm that the mechanical properties of the screws meet your needs, such as the tensile properties of the screws and the guaranteed load of the nuts. Also, the size of the screw should be confirmed. It is better to expose two or so teeth after tightening.
  2. It is also necessary to confirm whether the thread is a go-no-go gauge and keep it clean and free of debris between the threads, because debris may cause locking.
  3. Lubricate the metric shoulder bolts before use, which can prevent the screw from locking.

How to Use Shoulder Bolts

  1. When installing precision socket head shoulder screws, do not screw in too much force or too fast. Use a torque wrench or socket wrench as installation tools, but an adjustable wrench or an electric wrench cannot be used. Because it is easy to lock up when using an electric wrench.
  2. When tightening, not only pay attention to the speed but also pay attention to the direction of the force. The nut must be screwed perpendicular to the axis of the screw, and it should not be crooked.
  3. It will be better to add a washer to cooperate with it, so as to prevent the problem of over-tightening the lock.

Heatfastener is a professional custom shoulder screws bolts manufacturer and supplier, shoulder bolts include many types like low profile shoulder bolts, socket shoulder bolts, slotted round head shoulder bolts, knurled shoulder bolts, shoulder eye bolts, and more. Material can be stainless steel, brass, or any custom needs.

Are You Looking For Custom Screw Manufacturer?

As a 20-year industry experience manufacturer with a factory equipped with precision machines, we can provide, from consultation to production, a one-stop solution for you. For an accurate quotation, you need to tell us the following information:


Please tell us the specific details, like what is material and finish do you, and the fastener size, if you have drawings or pictures, please send them to us


Normally small order quantities are acceptable, while large quantities can help us to lower the cost and get you a more competitive price.


Tell us your application or detailed information for your projects. We can offer you the best choice, meanwhile, our engineers can give you more suggestions under your budget.

What We Can Offer You..

Best Quality

We have rich experience in the manufacture, design, and application of custom fasteners, and served more than 10000 customers worldwide

Competitive Price
we have an absolute advantage in the cost of raw materials. Under the same quality, our price is generally 10%-30% lower than the market.

With more than 22 years, we already have completed the control system and test equipment, we can provide all tests you need


Any feedback will be replied to within 24hours, We provide a 3-5 years guarantees policy. And all costs by us will be on our account.

Fast delivery

If you need urgently, we can deliver samples within 8hours. Bulk order can be within one week

Why Choice us

About Us

Shenzhen Heat Hardware Co., Ltd is a leading custom screw manufacturer in China founded in 2000 years. We are specializing in custom screws, security screws, Sems screws, Chicago Screws, Weld Screws, Long screws, Micro Screws, Thumb Screws, Set Screws, Custom bolts, carriage bolts, nuts, and other custom Fasteners. With more than 20years of industry experience. We have serviced over 20000customers including the aerospace industry, automotive industry, electronics, mechanical and electrical products, robots, the Medical industry, communications industry, Outdoor sports products, smart appliances, etc. we can provide one-stop fastener customized service for you no matter what kind of custom fastener you need.

Production Process

We have a variety of production requirements of equipment, can meet any customized demands. can provide comprehensive fastener solutions. Anything you need can make by Heatscrew.

Material Preparation

Threading Rolling

Automatic Lathe

CNC Process

Final Test

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