Low-Profile Self-Locking Screws (also known as Flush-Mount Captive Screws) are engineered for space-constrained applications, offering a shallow head height compared to standard Socket Cap Captive Screws. These anti-vibration machine screws integrate an unthreaded shank below the head, ensuring partial removal when paired with Threaded Captive Washers for secure, self-retaining assemblies.

Widely used in industrial machinery, military systems, and automotive captive screw solutions, these DIN standard self-locking screws meet stringent EU directives for safety-critical equipment. Their tamper-resistant security screw design prevents unauthorized disassembly, while precision self-locking fasteners guarantee alignment accuracy in high-stress environments.

Crafted from durable stainless steel low-head screws (A2/304 or A4/316 grades), we also offer specialized materials like Titanium and Aluminum for custom non-removable screws tailored to extreme conditions. Available in metric screws (M3–M20) with lengths up to 300mm, optional thread-locking patch screws enhance vibration resistance in dynamic applications.

Our fastener manufacturing expertise extends to bespoke solutions: non-standard sizes, finishes, and low-volume orders for precision self-locking fasteners are supported (minimum order quantities apply). Explore GuanBiao’s full range of ISO standard screws, including security-grade and high-tensile screws, designed for aerospace, electronics, and heavy machinery.

We can not only produce the above captive 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!