Custom Made Tamperproof Screw
A tamperproof screw (also known as a security screw or tamper-resistant screw) is a type of fastener designed to be difficult or impossible to remove without a specialized, matching tool. Its primary purpose is to deter vandalism, theft, unauthorized access, or meddling with equipment. King Tower offers a wide range of size with special tamper-resistant drive and screwdriver.
Details
Tamperproof Screw Features
Tamperproof screw is a security-focused fastener with a unique drive design that requires a specialized matching tool for installation and removal. Our facilities production equipments and are capable of performing various machining and secondary processes that your custom application may require.Send us your specs or configure a part requirements, we offer one-stop custom made services.
Material
Stainless Steel series - Offers good corrosion resistance and is suitable for outdoor use.
Steel with Protective Coatings - such as zinc plating or galvanizing, for added corrosion resistance.
Application
Public spaces - To prevent vandalism of benches, railings, and playground equipment.
Security systems - To protect access points, cameras, and other sensitive equipment.
Principle
Lack of Common Tools - the average person does not have a Tri-Wing or Spanner driver in their toolbox.
Physical Obstruction - Features like the center pin physically prevent standard bits from engaging
Type of Tamperproof Screw
Irregular Drive Tamperproof Screw
Special Drive Tamper-proof Screw
Pin Torx Security Screw
One Way Security Screw
Tri-Point-3 Tamproof Screw
Tamproof Screw with Screwdrive
Spanner Tamper-Resistant Screw
Security Hex Pin Screw
Security Torx Self-Drilling Screw
Custom Made Spanner Security Screw
M8 Tamper-Resistant Screw
Tamperproof Screw with Screw Key
| Common Types | Descriptions | How it Works |
| Pin Hex / Pin Torx (Security Star) | This is one of the most common types. It looks like a standard hex or Torx socket, but it has a central pin protruding in the middle of the drive. | A standard hex or Torx driver bit cannot fit into the socket because the pin blocks it. Removal requires a matching driver bit with a hole in the center to accommodate the pin. |
| Spanner (Snake-Eye) | The head has two small, round holes (or sometimes more) drilled opposite each other. | Requires a special spanner driver that looks like a fork with two pins. Standard flathead or Phillips screwdrivers are useless against it. |
| Tri-Wing (Tri-Point / Tri-Groove) | The drive has three slots radiating from the center at 120-degree angles, forming a Y-shape. | A standard Phillips or flathead screwdriver cannot engage the grooves properly. Requires a dedicated Tri-Wing driver bit. |
| Torq-Set (Offset Cruciform) | Similar to a Phillips drive but with the arms of the cross offset from the center. The legs are also asymmetrical. | A Phillips driver will not seat correctly and will likely cam out (slip), stripping the head. Requires a specific Torq-Set driver. |
| One-Way (Clutch Head) | These screws have a drive that is designed for installation with a standard flathead screwdriver. However, the drive's design includes a "clutch" mechanism that allows the driver to slip when turned in the reverse (removal) direction. | Easy to install, nearly impossible to remove with standard tools. Often, removal requires drilling out the screw head. |
| 5-Lobe (Pentalobe) | Features a five-pointed star pattern. It is easily confused with a Torx (6-pointed) screw but is distinct. | A standard Torx driver will not fit. Requires a specific 5-lobe driver. |
About King Tower
With 20+ years custom made experience, we offer the most reliable source for high quality fastener parts ranging from screws and bolts to CNC machining parts, stamping parts, and more.
King Tower Hadrware FAQ
