Trilobular Self Tapping Screws

Custom fasteners Manufacturer

Stainless steel Pan Head Trilobular Self tapping Screws

Type: stainless steel screws, pan head screws, trilocular screws,Trilobular Self Tapping Screws

Material: Stainless steel

Finish: Passivated


Standard: Inches, Metric


304 stainless steel screws are widely used.304 stainless steel screws are also called 18-8 and A2-70. Stainless steel screws not only have good corrosion resistance and anti-rust performance but also have good extensibility. Stainless steel also has some advantages in terms of strength and production process, such as easy production, simple production process, and good welding effect. Stainless steel screws can make the performance of the screws better through the electroplating process and heat treatment process. At the same time, this material is also environmentally friendly, because it can be recycled here.

Therefore, compared with other materials, stainless steel screws still have great advantages, whether it is the characteristics of the material itself, the advantages of the production process, or the performance after processing. However, the price of stainless steel wire is a little higher than other materials, but it is also worth the money in combination with other advantages.

The strength grade of stainless steel screws is generally between 4.8-6.8. Because it cannot be hardened, the strength is not particularly high. The main advantages of stainless steel screws are corrosion resistance and tensile strength. The strength grade of screws made of other steel materials is relatively large. There are more than 10 strength grades including 3.6-12.9, among which the strength grade of carbon steel is higher. When selecting, it can be selected according to the specific conditions of the connected parts to choose the right one.

The Advantage of Trilobular Screws

  • Trilobular Self Tapping Screws (TAP TITE) features:
    The Trilobular self tapping screws are an ideal thread-forming screw to improve the reliability of the screw locking operation and reduce the cost. Because the thread is triangular, the apex of the triangle is plastically processed when tapping the bottom hole, and the locking can be completed while tapping Operation.

  • In the screw locking operation, the screw accounts for only about 15% of the cost, while the tapping, other supporting parts, and locking operations account for about 85%, so from eliminating tapping, reducing operating torque, preventing screw loosening, and improving screw Considering the reliability of the lock and cost reduction, Trilobular self-tapping screws should be preferred.

  • Compared with the metric machine screw, the Trilobular self-tapping screw has the advantages of no pre-tapping for the bottom hole, strong anti-loosening force without the use of an anti-loosening washer, good strength, smaller diameter screws, etc.

  • Compared with ordinary self-tapping screws, Trilobular self-tapping screws have the advantages of small locking torque, large locking button force, large holding force, good anti-loosening effect, no chip powder, and low locking heat.

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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