Thumb Screws

Custom fasteners Manufacturer

Spring Loaded Captive Thumb Screws

Type: Spring-loaded captive screws, Captive Thumb Screws

Material: Stainless steel

Finish: Passivated


Standard: Inches, Metric


Captive screws are also called captive panel screws, or captive bolts. It features a small-diameter thread, relying on the small-diameter thread to hang the screw on the connecting piece (or through the clamping sleeve and clamping spring) to prevent the screw from falling off. The screw structure itself does not have an anti-falling function. The anti-falling function of the screw is realized through the connection with the connected part, that is, the small diameter thread of the screw is stuck on the mounting hole of the connected part through the corresponding structure to prevent falling off.

The spring loaded captive screw is composed of four parts: a hand-tightening sleeve, a riveting sleeve, a screw and a spring. Twist sleeves generally have straight knurled,we also called knurled Captive Thumb Screws.

  • Screw part: According to the material, it can be produced by carbon steel and stainless steel. In order to facilitate the installation, the head is generally made into a slotted or phillips. The screw part mainly plays the role of connecting with the parts.

  • Twist sleeve: generally made of aluminum, the surface should be straightened and patterned, the surface can be made of natural, or it can be made of oxidized black or anodized

  • Pressure riveting sleeve: generally carbon steel or stainless steel, its function is mainly to connect with sheet metal.

How to Install Spring Loaded Captive Thumb Screws?

  1. Place the captive screws into the grooved base fixture
  2. Drill the installation holes of the corresponding size on the plate and make the holes
  3. Lay the panel on top of the spring-loaded captive screws
  4. Adjust the relevant parameters of the riveting equipment, press evenly, and make the positioning ring expand
  5. The reduced diameter section is reached, retaining the screw on the panel and the installation is completed.

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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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