Washers & Wire-Form Retaining Clips
Plain, tooth and special washers, and wire-form R-clips and hairpins that keep pins and shafts in place.
Manufactured by Uvi Tech Fit in Kundli, Sonipat, India.
Or message us on WhatsAppISO 7089 (plain washers)

Overview
UVI supplies the retention hardware that keeps assemblies together: internal and external tooth star lock washers, plain and profiled washers, grooved turned washers, and wire-forming retaining clips of the R-clip and hairpin type used to secure pins and shafts.
Also known as: plain washer, R-clip, hairpin clip.
Related parts: Pivots & Ball Studs, Brass Nozzle Inserts & Turned Brass Parts, Button-Head Lock-Tight Screws
Used in
- Anti-loosening under vibration
- Pin and shaft retention
- Load distribution under heads
- Automotive and machinery assemblies
- Electrical and panel hardware
Dimensions
Plain washer (ISO 7089)
| For bolt | Inner dia. | Outer dia. | Thickness |
|---|---|---|---|
| M3 | 3.2 | 7 | 0.5 |
| M4 | 4.3 | 9 | 0.8 |
| M5 | 5.3 | 10 | 1.0 |
| M6 | 6.4 | 12 | 1.6 |
| M8 | 8.4 | 16 | 1.6 |
Tooth lock washers, turned washers and wire-form clips are made to drawing or sample. For clips give pin diameter and wire size.
Parts are checked at each stage with vernier calipers, micrometers and visual inspection. Material and test reports can be arranged on request.
Request a Quote
Give size, length, material, finish and quantity. For a custom part, attach a drawing or a photo of the sample.
Questions
Internal or external tooth lock washer?
External teeth grip more area and suit larger heads; internal teeth sit under smaller heads and look neater.
How do I size an R-clip?
By the diameter of the pin or shaft it goes through and the cross-hole size. Send both.
Can washers be supplied fitted to screws?
Yes. See Combi Screws with Washer.
