Tamper-resistant machine screws for secure, repeatable fixings: TERF M4 Pan Head Security Torx Machine Screws. Installers and homeowners gain confidence from a bulk pack suited to routine maintenance and repairs. Are these screws the right choice when fit, tamper resistance and durability matter?
⚡ At a Glance
- • Drive Security: Tamper Resistant Torx socket with security pin requires a matching security bit for removal
- • Best for: Maintenance professionals and installers needing secure, tamper-resistant fixings in bulk
- • Not ideal for: Applications that require countersunk heads or non-plated stainless fasteners
Pack of 50 M4 x 12mm pan head security Torx machine screws made from zinc plated steel. Manufactured to ISO 965 metric tolerance for consistent thread fit and repeatable assemblies.
Secure Installations – Thanks to Tamper Resistant Torx Socket
Pan head screws use a security-style Torx socket that incorporates a central security form, compatible only with matching security Torx bits. The tamper style reduces the chance of removal with common flat or Phillips drivers.
Greater protection against unauthorised loosening makes these screws suitable for public-facing fixtures and safety-conscious installs.
Durable Finish – With Zinc Plated Steel Construction
Manufactured from zinc plated steel, each screw has a thin metallic coating over the steel core to resist wear and provide a basic protective layer. The zinc plating supports longevity of heads and threads during routine use.
Appropriate for indoor and sheltered applications where a durable, plated finish helps maintain appearance and function.
Consistent Thread Fit – Thanks to ISO 965 Tolerance
Threads are produced to ISO 965 metric tolerance standards, ensuring dimensional consistency across batches and compatibility with standard metric nuts and tapped holes.
Predictable thread engagement reduces cross-threading and speeds up assembly on repeated jobs.
✨ The 4 Key Reasons for TERF M4 Pan Head Security Torx Machine Screws
- Pack of 50 – Supplies enough screws for multiple small to medium installations
- Tamper-Resistant Torx – Discourages unauthorised removal and secures fixtures against tampering
- Zinc Plated Steel – Provides basic corrosion protection suitable for indoor and sheltered environments
- ISO 965 Tolerance – Ensures reliable thread fit and reduces chances of cross-threading during assembly
📋 Technical Details at a Glance
- Category: Machine screws
- Brand: TERF
- Size: M4 (4mm) x 12mm
- Head Type: Pan head
- Drive Type: Tamper Resistant Torx socket (security)
❓ Frequently Asked Questions
Q: Are these screws tamper-resistant?
A: Yes, they use a Tamper Resistant Security Torx socket pan head that requires a matching security Torx bit for removal.
Q: What material are the screws made from?
A: The screws are manufactured from zinc plated steel, offering a plated finish over a steel core.
Q: What size and quantity are included?
A: Each pack contains 50 screws sized M4 (4mm) x 12mm.
🏆 Our Verdict
Ideal for installers and maintenance teams who need tamper-resistant fixings supplied in bulk. The combination of a security Torx socket, zinc plated steel construction and ISO 965 thread tolerance makes the pack a dependable choice for repeatable assemblies. Good value for stock or routine maintenance, offering durable, consistent fastenings for the long term.
