Protection from unwanted tampering 03 June 2025

Across a variety of industries, security screws play a vital role in protecting the essential components of a given application by preventing unauthorised access and tampering. Osaka-based Sunco provides customers with fastening solutions to secure vulnerable components including its LH STIX, TORANAIDE and HAZUSEN ranges.

Sunco’s LH STIX is a high-quality tamper resistant screw that combines processability, reliability and safety in screw fastening. Designed mainly for use in gas meters, projectors, pots and other similar applications, the drive unit and bits make contact with a taper, resulting in a secure grip and improved working efficiency. Additionally, the six radius torque transfer areas around the circumference of the head are designed as a combination of circular arcs, in order to prevent cam out when tightened with a special tool. 

LH STIX also has excellent torque transmission and good adhesion to bits and screwdrivers, making it easier to work with while improving the durability of the fastening tool.  

Another securing solution from Sunco International Co Ltd is the TORANAIDE anti-theft bolt, which features a 3D shape and an angled head to prevent common tools from securely gripping the fastener. This product can only be tightened and loosened with a special tool, thus offering a high-level of security. Made from stainless steel and resistant to rust, TORANAIDE is mainly used for motorcycle mufflers, roof carriers, surveillance cameras, as well as number plates, among others. 

In addition, the anti-theft Tighten raised countersunk head screw also offers reliable security for number plates, safes, vending machines, etc, with a hexagon head that breaks off when tightened, to enable the
anti-theft screw to be easily fitted with a single wrench. Once the heads have been torn off, the screws are difficult to remove with standard tools, preventing theft and tampering. 

Furthermore, the HAZUSEN BOLT – a knurled bolt with a special locking mechanism to prevent unwanted tampering is also available from Sunco. After installation, the lock can be easily engaged by simply pressing the lock button on the head of the bolt. After locking, the main body of the fastener idles and cannot be removed – only the person holding the key can unlock or remove it. With these high security properties, HAZUSEN BOLT is suited to applications in exhibits, switchboards, factories and public facilities, as well as other places where it is vital that unwanted tampering from third parties is prevented. 

Sunco quality quest

To further its commitment to quality, Sunco has introduced a YouTube channel to share the stories behind the creativity of artisans’ businesses that are driven by a passion for quality and creativity. The company explains: “Through interviews with creators and studio visits, we are hoping to take viewers behind the scenes of the making of the products we often take for granted. We aim to reveal the dedication and craftsmanship behind the creation of a wide range of items, offering a deeper understanding and appreciation of their stories and, once again, confirm Sunco’s commitment to quality products.”

Becca England Assistant Editor t: +44 (0) 1727 615 413

Becca is the latest member to join our team and is eager to get stuck into the world of fasteners. She brings an enthusiastic and fresh outlook on what we do editorially and will be leading our social media activity – including sourcing material, editing articles and posting online.