Triangular Head Bolts

Custom fasteners Manufacturer

Special Security Triangular Head Bolts (Tri Head Bolts)

Type: Special Bolts, Security Bolts, Triangular Head Bolts, Tri Head Bolts

Material: Stainless steel

Finish: Natural


Standard: Inches, Metric


Flange Triangular head bolts also called tri head bolts are kind of special bolts and security bolts which has a special, deep, tri head with a flange that needs special triangular tools to assemble and remove. this is a security bolt but these bolts are not as secure as other security screws. and it is a reusable fixing fastener.

Triangular head bolts are available with almost any possible screw thread and materials, materials are available in stainless steel, brass, aluminum, and titanium. We can make it as per custom drawing and needs. tri head bolts can be used matching with security nuts like shear nuts,kinmar nuts, or pin barrel nuts for added security

What is the difference between ordinary bolts and Security bolts

Ordinary bolts and security bolts(anti theft bolts) both play the role of fastening, but anti-theft bolts have a special performance compared to ordinary bolts, which have an anti-theft effect.

Ordinary screws include hex socket cap screws, hexagon bolts, countersunk head screws, Phillips-slotted screws, Torx screws, Phillips-slotted screws, etc. These types of screws are very common, while anti-theft screws, The biggest difference from ordinary screws is the difference in appearance. For example, anti-theft screws generally have Torx screws, Torx pin screws,socket pin screws, and one-way bolts. There is a big difference in the groove shape of ordinary screws. In terms of use, we can easily buy removal tools in the market, such as slotted screwdrivers, Phillips screwdrivers, Torx screwdrivers, etc. These are tools with standard models, and the removal tools for anti-theft screws on the market are special tools that normally need customized and are not easy to find.

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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