Fasteners for repair and assembly that promise secure joins and reliable holding power. Practical results appeal to tradespeople and keen DIYers who want neat, long-lasting fixings. Are BESTYCHAO Large Flange Blind Rivets the right choice for metal tube and sheet mounting projects?
⚡ At a Glance
- • Holding Strength: Large 16mm flange increases contact area to reduce loosening under load
- • Best for: Joining metal tubes and sheet materials where a wider contact area prevents pull-through
- • Not ideal for: Installations without a rivet gun or other professional mounting tool
Aluminium rivet body with a steel mandrel, sized 4.8 x 20mm with a 16mm flange. Supplied as a pack of 50 in black, designed for indoor and outdoor use.
Reduced loosening – thanks to the large 16mm flange
A bigger flange spreads clamping forces over a wider surface, lowering stress concentration at the hole. The result is less movement at the joint compared with smaller-flange rivets.
Stronger holds on materials that would otherwise suffer pull-through, so fewer reworks and firmer long-term assemblies.
Lightweight corrosion resistance – with aluminium rivet body and steel mandrel
An aluminium body keeps mass down while the steel mandrel supplies internal strength; both materials are described as corrosion resistant for durable service. The construction balances low weight with mechanical integrity.
Suitable for indoor and outdoor fittings where durability and reduced weight matter, such as furniture panels and vehicle sheet mounting.
Predictable installation – thanks to consistent 4.8 x 20mm sizing
Uniform body and flange dimensions produce steady pull characteristics and fitting behaviour, which users report as smooth and reliable during installation. Consistent sizing reduces the risk of tool jams and misfits.
Reliable, repeatable results when installing multiple fastenings, helpful for repair runs and production-style tasks.
✨ The 4 Key Reasons for BESTYCHAO Large Flange Blind Rivets
- Aluminium construction – Lightweight fastenings reduce added mass on assemblies
- Steel mandrel core – Internal strength supports secure setting and long service life
- Consistent 4.8 x 20mm sizing – Enables fast, repeatable installation across batches
- Pack of 50, black finish – Ready supply for medium projects with a discreet appearance
📋 Technical Details at a Glance
- Material: Aluminium rivet body
- Mandrel: Steel
- Rivet size: 4.8 x 20mm
- Flange size: 16mm
- Finish / Colour: Black
❓ Frequently Asked Questions
Q: Do these rivets require a special tool to install?
A: Yes, a rivet gun or other professional tool is needed to mount these blind rivets.
Q: What are the rivet and flange dimensions?
A: The rivet body measures 4.8 x 20mm and the flange diameter is 16mm.
Q: Are these suitable for outdoor use?
A: Yes, the materials are described as corrosion resistant and the rivets are suitable for indoor and outdoor applications.
🏆 Our Verdict
Ideal for tradespeople, vehicle repairers and keen DIYers who need permanent, reliable fastenings for sheet and tube mounting. Large flange design combined with an aluminium body and steel mandrel delivers secure, corrosion-resistant joins that install consistently. Durable construction and predictable sizing make these rivets a sensible long-term choice for repeat projects and repairs.
