Fasteners that make joining threaded rods straightforward for home, workshop and industrial repairs. TERF Round Coupling Nut gives accurate M4 fit and a zinc plated finish for robust joins. Is a 20-piece pack the right choice for your regular projects?
⚡ At a Glance
- • Thread Fit: Designed for M4 (4mm) threaded rods, precise external diameter
- • Best for: DIYers, workshop technicians and installers needing reliable threaded joins
- • Not ideal for: Applications requiring specialised corrosion-resistant alloys or sealed fittings
Female threaded connector made from zinc plated steel. Suited to join two lengths of threaded rod quickly and securely.
Secure Joins – Thanks to standard M4 female threading
Internal threads match M4 (4mm) bolts, studs and machine screws to form a continuous fastened length. Threads engage both ends to couple two rod lengths or fasten parts together.
Stable mechanical connections that resist loosening under normal load, ideal for extensions and repair tasks.
Durable Finish – With zinc plated steel construction
Made from steel with a zinc plating applied to the surface, which provides basic protection against corrosion and wear. The coating helps preserve the steel substrate in typical indoor and sheltered environments.
Longer service life for household and workshop uses, reducing the need for frequent replacements.
Practical Bulk Supply – Thanks to a 20-piece pack
Package contains twenty identical round coupling nuts, allowing multiple joints to be prepared or spares to be kept on hand. Consistent sizing across the pack simplifies matching to threaded rods.
Convenient for project work and maintenance, ensuring ready availability and fewer trips to source additional parts.
✨ The 4 Key Reasons for TERF Round Coupling Nut
- Accurate M4 sizing – Ensures a precise fit with standard 4mm threaded rods and studs
- Zinc plated steel – Offers basic corrosion protection for indoor and sheltered use
- Pack of 20 – Keeps enough connectors for multiple projects or spare parts
- Versatile compatibility – Works with bolts, studs and machine screws for varied applications
📋 Technical Details at a Glance
- Category: Fasteners
- Brand: TERF
- Product Type: Round Coupling Nut
- Size: M4 (4mm)
- Length: 20mm
❓ Frequently Asked Questions
Q: Are these compatible with standard M4 threaded rod?
A: Yes, described as M4 (4mm) threaded rod connectors and noted for accurate external diameter that ensures a precise fit.
Q: What material and finish do they use?
A: Made from zinc plated steel, the finish provides basic protection against corrosion and wear in typical indoor or sheltered environments.
Q: How are they commonly used?
A: Used to fit bolts, studs or machine screws for fastening two parts together and to quickly connect two lengths of threaded rod across many applications.
🏆 Our Verdict
Suitable for DIY enthusiasts, workshop technicians and installers who need reliable, repeatable threaded joins. Accurate M4 fit combined with zinc plated steel construction delivers durable and practical connections across household, office and industrial tasks. Supplied in a 20-piece pack, the connectors offer good long-term value by keeping spares on hand and reducing downtime during repairs.
