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LKTFATD U Nut Clip Review: Reliable M6 fasteners for back box repairs

20pcs Spring Steel Speed Fastener U Nut Clip (Brass Tone) for M6 Screw – Back Box Repair Clips
4.5
[Durable 65Mn Spring Steel]  High-strength 65Mn steel resists deformation for reliable fastening and long service life.
[Corrosion-Resistant Zinc Plating]  Zinc-plated brass tone finish protects against rust and offers an attractive look.
[M6 Screw Compatibility]  Designed for M6 screws with 10mm hole diameter and secure fit on 2mm panels.
[Compact Precision Size]  20 x 16mm footprint with 12mm edge distance ensures precise alignment and easy installation.
[Value Pack of 20]  Includes 20 U-nut clips (103g total) for economical repairs and bulk projects.
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Fasteners for back box and panel repairs that restore secure, repeatable fixings. Designed for tradespeople and DIYers who need quick, dependable replacements. Are the LKTFATD U Nut Clip packs right for your M6 repair needs?

⚡ At a Glance
  • Holding Strength: Firm clamping from 65Mn spring steel and spring-action design suitable for repeated fittings
  • Best for: Tradespeople, electricians and DIYers repairing back boxes and thin panels
  • Not ideal for: Panels thicker than 2mm, or applications using non-M6 screws

65Mn spring steel construction with a zinc-plated finish matches M6 screws and 2mm panel thickness. Compact 20 x 16mm size with a 10mm hole, supplied as a 20-piece pack for small repair jobs.


Secure clamping – With 65Mn spring steel construction

65Mn spring steel provides high tensile strength and retains springiness under flexing, helping the clip maintain pressure against screw threads. Zinc plating adds a thin protective layer to the metal surface.

Consistent grip reduces loosening during vibration and repeated removals, keeping panels seated securely.

Corrosion resistance – Thanks to zinc-plated finish

The zinc-plated coating creates a barrier that slows surface oxidation on the spring steel, improving resistance to everyday humidity and indoor damp conditions. The brass-tone finish is the visible result of the plating process.

Longer service life in typical indoor and sheltered environments, so replacements are needed less often.

Quick replacement – With speed fastener U-nut design

U-nut speed fastener format is sized for a 10mm hole and a 2mm panel thickness and is specified for M6 screw fittings. The overall dimensions, including a 12mm centre-to-edge distance, suit common back box layouts.

Makes straightforward swaps during back box repairs when panels and hole sizes match the listed dimensions.

✨ The 4 Key Reasons for LKTFATD U Nut Clip
  1. 65Mn Spring Steel – Withstands repeated flexing over time without losing clamping force
  2. Zinc Plated Finish – Reduces corrosion for longer service life in damp environments
  3. M6 Thread Compatibility – Fits standard M6 screws for straightforward panel repairs
  4. Compact 20 x 16mm Size – Allows neat installations in tight back box spaces
📋 Technical Details at a Glance
  • Category: Fasteners
  • Product Type: U Nut Speed Fastener
  • Brand: LKTFATD
  • Material: 65Mn Spring Steel
  • Finish: Zinc Plated (Brass Tone)
❓ Frequently Asked Questions

Q: What screw size do these clips fit?

A: They are designed to fit M6 screws, as stated in the product description.

Q: How many clips are included in a pack?

A: Each pack contains 20 U nut speed fastener clips.

Q: What panel thickness and hole size are compatible?

A: Compatible with panel thickness of 2mm and a hole diameter of 10mm, with a centre-to-edge distance of 12mm.

🏆 Our Verdict

Suitable for tradespeople and DIYers who need M6-compatible fasteners for thin panels and back box repairs. 65Mn spring steel construction with zinc plating gives firm retention and improved corrosion resistance. The 20-piece pack supplies useful spares that reduce downtime and support repeated repairs.