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M METERXITY Cotter Pins Review: Robust Enough for Heavy-Duty Use?

M METERXITY 6-Pack R-Shaped Cotter Pin, M3x65mm Stainless Steel Hairpin Hardware Spring R Clips for Trailer Locking/Trucks/Trucks Lock System, Heavy Retainer Pins
4.6
[Versatile Compatibility]  Fits tractors, trailers, carts, trucks, lawn mowers and more for reliable fastening.
[Stainless Steel Durability]  Corrosion- and wear-resistant with high strength; smooth, burr-free finish resists deformation.
[Perfect Size & Pack]  65 x 19mm (2.56 x 0.74") R-clips, 3mm diameter; pack of 6 pieces.
[Secure Quick Locking]  Hairpin design locks bolts fast, prevents rotation and falling off; reusable.
[Easy Installation Tip]  Insert straight leg into shaft hole until semicircular bend clamps shaft side to secure.
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Hardware fasteners aimed at locking shafts and bolts securely across trailers, tractors and garden machinery. M METERXITY Cotter Pins bring stainless-steel R-shaped clips that resist corrosion while staying reusable. Are these clips tough enough for regular workshop and field work?

⚡ At a Glance
  • Holding Strength: R-shaped spring action grips shafts firmly, resisting axial movement and rotation
  • Best for: Farmers, tradespeople and DIYers needing reliable fasteners for trailers and mowers
  • Not ideal for: Applications that require sealed or precision-threaded locking mechanisms

R-shaped stainless-steel hairpin clips measure 65 x 19mm with a 3mm shaft diameter and come in a pack of six. Spring-action geometry locks bolts and pins to limit rotation while resisting corrosion.


Secure locking, thanks to R-shaped hairpin design

Insert the straight leg into the hole near one end of the shaft until the semicircular middle clamps one side of the shaft, so the bent leg holds firmly. The hairpin geometry uses spring tension to resist axial movement and rotation.

Quick and reliable retention prevents bolts and pins from shifting under vibration. Reusable clips make routine maintenance faster and reduce the need for replacements.

Long-term durability, with stainless steel construction

Made from stainless steel with a smooth, flat surface and no burrs, offering corrosion resistance, wear resistance and enhanced strength. The material resists deformation and breakage under typical loads.

Clips withstand outdoor and workshop conditions without rusting or losing spring tension. Users can expect consistent performance for heavy-retainer applications.

Wide compatibility, with standard M3 diameter and common length

Each clip measures 65 x 19mm (L x W) and fits a 3mm shaft diameter, matching common pin sizes used on trailers, carts, lawn mowers and small agricultural equipment. The pack contains six identical clips for spares or multiple fittings.

Easy to swap into existing assemblies as replacement retainers. Having six identical clips helps keep a maintenance kit organised and ready.

✨ The 4 Key Reasons for M METERXITY Cotter Pins
  1. R-shaped profile, fits tractors, trailers, carts, trucks and common garden machinery
  2. Smooth, burr-free finish, reduces wear and eases installation during routine maintenance
  3. Stainless-steel construction, resists corrosion for outdoor and marine exposure applications
  4. Pack of six, provides spare clips for quick repairs and regular upkeep
📋 Technical Details at a Glance
  • Category: Cotter pins / hairpin R-clips
  • Brand: M METERXITY
  • Material: Stainless steel
  • Shape: R-shaped hairpin clip
  • Length: 65 mm
❓ Frequently Asked Questions

Q: What size are these cotter pins and how many are included?

A: Each clip measures 65 x 19mm with a 3mm shaft diameter, and the pack contains six identical hairpin R-clips.

Q: Are the clips suitable for outdoor use and resistant to rust?

A: Yes, stainless-steel construction and a smooth finish give good corrosion resistance suitable for outdoor equipment.

Q: Can the clips be reused after removal?

A: Yes, the hairpin design and spring action allow repeated removal and reinstallation for maintenance tasks.

🏆 Our Verdict

Suitable for tradespeople, farmers and DIYers who need durable, reusable locking clips for trailers and garden equipment. Stainless-steel R-shaped design and a uniform, burr-free finish make them dependable for regular maintenance and outdoor use. While cost will vary by supplier, durable materials and a pack of six make these clips a practical long-term addition to a repair kit.