'%3e%3cpath%20fill-rule='evenodd'%20clip-rule='evenodd'%20d='M33%2033H1V1H33V33Z'%20fill='white'/%3e%3cpath%20fill-rule='evenodd'%20clip-rule='evenodd'%20d='M33%2033H1V17H33V33Z'%20fill='%23DC143C'/%3e%3c/g%3e%3crect%20x='0.5'%20y='0.5'%20width='33'%20height='33'%20rx='16.5'%20stroke='black'%20stroke-opacity='0.1'/%3e%3cdefs%3e%3cclipPath%20id='clip0_37449_250459'%3e%3crect%20x='1'%20y='1'%20width='32'%20height='32'%20rx='16'%20fill='white'/%3e%3c/clipPath%3e%3c/defs%3e%3c/svg%3e)
Machine screws designed for secure, tamper-resistant fastening, ideal where unauthorised removal is a concern, TERF Machine Screws are M5 x 20mm pan head fasteners with a Torx security socket. Peace of mind for anyone fitting external fixtures such as number plates. Are the size and pack quantity right for your job?
⚡ At a Glance
- • Fastening Strength: Reliable metric thread grip with consistent fit under vibration
- • Best for: DIYers, vehicle owners and technicians who need tamper-resistant external fixings
- • Not ideal for: Applications that require countersunk heads or non-metric thread sizes
Tamper resistant Torx pan head screws in M5 x 20mm size, supplied as a pack of 10. Zinc plated steel construction with ISO 965 metric tolerance for consistent thread fit.
Improved Security – With Tamper Resistant Torx Pan Head
The Torx security socket uses a tamper-style socket that accepts a matching security bit rather than standard drivers, making casual removal difficult. Pan head profile spreads load across the fixing surface.
Enhanced resistance to unauthorised removal suits exposed fittings and external fastenings where security matters.
Consistent Thread Fit – Thanks to M5 x 20mm Size and ISO 965 Tolerance
Metric M5 (5mm) diameter with 20mm length and ISO 965 tolerance ensures uniform thread dimensions and predictable mating with standard M5 nuts or tapped holes. Metric measurement simplifies matching to existing hardware.
Predictable fit reduces cross-threading and speeds installation when replacing or renewing multiple fastenings.
Handy Spares Pack – With Zinc Plated Steel Construction
Supplied as a pack of 10 screws made from zinc plated steel, providing a consistent batch of fasteners ready for common tasks. Zinc plating gives a protective surface layer to the steel substrate.
Useful for keeping replacements on hand for number plates and routine repairs, reducing downtime and repeat orders.
✨ The 4 Key Reasons for TERF Machine Screws
- Tamper Resistant Torx Socket – Forces use of a security bit, deterring casual theft
- Zinc Plated Steel Finish – Adds surface protection, prolonging fastener appearance under damp conditions
- Pack of 10 Screws – Keeps spare fixings to tackle multiple repairs without repeated orders
- ISO 965 Metric Tolerance – Ensures consistent thread fit for standard M5 nuts and tapped holes
📋 Technical Details at a Glance
- Category: Machine Screws
- Brand: TERF
- Size: M5 x 20mm (5mm x 20mm)
- Head Type: Tamper Resistant Torx Pan Head
- Material: Zinc Plated Steel
❓ Frequently Asked Questions
Q: Are these screws tamper resistant?
A: Yes, the fasteners use a Tamper Resistant Torx socket pan head, designed for security-focused fastening.
Q: What size and length are the screws?
A: The screws are M5 (5mm) diameter with a 20mm length, listed as metric measurement.
Q: What material are the screws made from?
A: Manufactured from zinc plated steel and supplied as a pack of 10.
🏆 Our Verdict
Suitable for DIYers, vehicle owners and technicians who need secure, tamper-resistant metric fixings. Security Torx pan head, M5 x 20mm sizing and zinc plated steel construction make these useful for external fastenings and routine repairs. Compact packs of ten deliver practical long-term value by keeping spare fixings ready for maintenance.
