DEFANEX 2pcs Cotter Pins (M4 x 90mm) - Heavy Duty R Clips Hitch Pin Clip Hardware 304 Stainless Steel Spring Fasteners, for T
Reviewed 23 August 2026 · price checked live
Check price on Amazon →Overview
DEFANEX 2pcs Cotter Pins (M4 x 90mm) sits in our construction machinery listings, where we rank by how buyers actually rate a product rather than by brand. The manufacturer says:: R-type clip-on retaining pin has a diameter of 4mm (0.16 inches) and a total length of 90mm (3.54 inches). Made of 304 stainless steel with smooth surface.: This clip-on hitch pin is suitable for use on a variety of machinery, tractors, engines, trucks, cars, campers, carts, RVs, lawn mowers, power equipment, and other farm equipment. Those are the seller's own claims rather than our testing, so treat them as a starting point. On Amazon it holds 5.0 out of 5 from 2 ratings. What that score is worth next to its rivals is set out below.
- Brand
- DEFANEX
- Amazon rating
- 5.0 / 5 from 2 ratings
- vs Construction Machinery
- 0.4 above the category median of 4.6
- Rank in category
- 9 of 27 rated construction machinery we track
- Price position
- Among the cheaper options (category spans £3.99 to £124)
- How proven
- Fewer ratings than most rivals here, so less settled
How it compares in Construction Machinery
Across the 27 rated construction machinery products we track, the typical score is 4.6 out of 5. This one sits at 5.0, which puts it in the upper quarter of the category rather than level with it. Where almost everything is rated well, the gap at the top is small in points and large in practice.
It carries 2 ratings against a category median of 26. That is a thin base by the standards of this category, so treat the score as provisional: a handful of extra reviews can still move it either way.
On price it sits in the lower third of a category running from £3.99 to £124, where the midpoint is about £7.49. Cheaper than most while rating at or above the category norm is the combination worth looking for, and it is the main argument for this one.
Worked out from the 30 construction machinery products in our catalogue, not from the brand's own claims. How we rank →
Key features
- [Safe & Durable]: R-type clip-on retaining pin has a diameter of 4mm (0.16 inches) and a total length of 90mm (3.54 inches). Made of 304 stainless steel with smooth surface, cotter hitch pin are not easily broken, which are rust-proof and corrosion-resistant. It also features high hardness and strong elasticity, ensuring durability.
- [Wide Application]: This clip-on hitch pin is suitable for use on a variety of machinery, tractors, engines, trucks, cars, campers, carts, RVs, lawn mowers, power equipment, and other farm equipment.
- [Easy Install]: Easy to use, simply insert the pin into the designated hole, and the spring mechanism will automatically secure it firmly and will not fall out easily once it is in place.
- [Meet Your Needs]: The cotter pins feature a strong elastic hairpin design that distributes force evenly. Once engaged, the pin securely locks the bolt and prevents rotation, preventing accidental displacement. It's also reusable.
- [Use Tips]: Please confirm the size before you purchase.
