Car mounting hardware that secures trim and panels quickly and replaceably, Keple U Nuts Speed Fasteners. Perfect for DIY mechanics and workshop professionals who need reliable, serviceable fastenings. Are the captive nuts and pre-threaded holes a smarter choice than standard clips for repeat repairs?
⚡ At a Glance
- • Holding Strength: U-style clip nut grips panel edges and clamps layers together to resist loosening.
- • Best for: Auto technicians and DIYers fitting door trims, roof linings and dashboards.
- • Not ideal for: Applications requiring integrated electrical connectivity or heavy structural load-bearing.
Zinc-plated steel U-nuts supplied in a 10-piece pack with captive screws and 3.9 mm U nails. Pre-threaded holes accept M3, M4 and M5 screws and allow minor alignment during installation.
Secure panel fixings – Thanks to U-style clip nut design
U-style clip nuts clip over thin panel edges and hold two or more panels together while the captive screw forms a threaded joint. The captive arrangement keeps the nut in place during assembly and servicing.
Firm, reliable joins keep trims and linings secure during normal use and maintenance, reducing rattles and movement.
Easy servicing and replacement – With replaceable pre-threaded nuts
Pre-threaded captive nuts allow a screw to be removed and the nut swapped if over-tightened, preventing permanent damage to the panel. Replacement avoids the need to re-drill or re-thread fragile materials.
Repair work becomes simpler and less destructive, saving time when panels need removing or re-fitting.
Versatile vehicle-ready fit – Thanks to zinc-plated steel and M3–M5 threading
White zinc-plated steel gives basic corrosion resistance suitable for automotive interiors, while the 3.9 mm sizing matches common thin-panel applications. Pre-threaded holes are prepared for M3, M4 and M5 screws.
Suitable for a wide range of trims and appliances where pre-threading would otherwise be difficult, offering practical compatibility for many jobs.
✨ The 4 Key Reasons for Keple U Nuts Speed Fasteners
- Zinc-plated steel – Corrosion-resistant finish for longer service life in vehicle interiors
- 3.9mm U nails – Precise fit for common thin-panel thicknesses and trims
- Captive screws – Nuts stay attached for quicker fitting and reduced loss
- Pre-threaded holes – Allow minor alignment and straightforward screw replacement later
📋 Technical Details at a Glance
- Category: Car mounting fasteners
- Material: Zinc-plated steel
- Size: 3.9 mm U nail
- Quantity: 10 pieces
- Finish: White zinc plating
❓ Frequently Asked Questions
Q: Are these compatible with M3, M4 and M5 screws?
A: Yes, pre-threaded holes accept M3, M4 and M5 screws as specified.
Q: Can the nuts be replaced if a screw is over-tightened?
A: Yes, if a screw is over-tightened the nut can be replaced, avoiding permanent damage to pre-threaded holes.
Q: What applications are they suited to?
A: Designed for motor vehicles, domestic appliances, electrical equipment and machinery; commonly used on door trims, roof linings, interior door panels and dashboards.
🏆 Our Verdict
Ideal for DIY mechanics and workshop professionals who need dependable, serviceable panel fastenings. Replaceable captive U-nuts with pre-threaded holes for M3–M5 screws make repairs quicker and less damaging to panels. While upfront cost varies, the option to replace nuts rather than rework panels delivers good long-term value for maintenance-heavy work.
