Slotted Capstan Captive Screws are a specialized type of precision screw designed for applications requiring controlled tension adjustment. Featuring a cylindrical head with symmetrical holes around its diameter, these threaded fasteners allow cables, wires, or levers to be inserted for fine incremental adjustments in assemblies.

As an adaptation of DIN 404-compliant machine screws, they include an unthreaded "reduced shank" below the head. When paired with a threaded captive washer, these screws remain securely captive in their housing, eliminating the risk of complete removal. Their dual-drive design (slotted head or side holes) ensures compatibility with tight-access installations, making them ideal for fastener manufacturing projects requiring versatility.

Crafted from ss304 stainless steel screws as standard, they offer corrosion resistance and durability. For specialized needs, materials like Titanium, Brass, or Nylon are available, along with custom screws tailored to unique specifications. Available in metric screws (M2–M20) with lengths up to 300mm, optional thread-locking patches enhance reliability in high-vibration environments.

GuanBiao hardware supplies these ISO standard screws alongside other high-tensile screws and self-tapping screws for diverse industrial applications. Non-standard sizes, materials, and finishes can be produced as special orders, including low-volume batches or bespoke parts manufactured to technical drawings (minimum order quantities apply).

Explore our full range of captive screws, including precision screws and high-strength threaded fasteners, at GuanBiao hardware. Need a unique solution? Our fastener manufacturing expertise covers ISO standard screws, custom screws, and more.

We can not only produce the above Lead Sealing Screws, we also produce the following screws:

stainless steel screws
Lead Sealing screws
long screw
spring locad screw
Bracket screws
Standoff screws
Tamper proof screws
Eccentric adjustment screw
Precision headless positioning screws, etc.

If you are intresting please visit our website: www.ss-screws.com, thank you!