5x21mm Wheel Nut Locker 5 Stud- (4 Pack)

Compatibility & Technical Features

• For 21mm wheel nuts on 5‑stud wheels
• Long‑reach barrel (54mm) suitable for wheels with trims and step rings
• Manufactured from impact‑resistant copolymer polyethylene
• Melting point 120°C for high‑temperature environments

21mm fluoro orange Wheel Nut Locker 4-pack loose. Specially designed for 5x21mm wheel nuts on wheels with trims and step rings.

Key Benefits

• Prevents wheel‑nut loosening and reduces wheel‑off risk
• Acts as both a loose‑nut indicator and a nut retainer
• Creates resistance between nuts to minimise rotation
• Long‑reach 54mm barrel suitable for wheels with trims and step rings
• Manufactured from impact‑resistant copolymer polyethylene
• High‑visibility fluoro orange for fast visual inspections

Our 5-stud 21mm wheel nut lockers provide a simple but effective preventative solution to wheel safety. Fitted as a single ring over all five nuts, they prevent loosening and reduce the risk of wheel-off incidents. This provides wheel‑nut security as a proactive wheel‑safety measure and serves as a site‑approved wheel‑nut retention device.

Easy to Install

Our Wheel Nut Locker is both a loose nut indicator and a nut retainer. Installed as a single piece over all five nuts creates resistance between the nuts to minimise their ability to rotate and prevent them from loosening. The Wheel Nut Locker is designed with a long-reach (54mm) barrel, specially designed for wheels with trims and step rings.

Our Wheel Nut Lockers are manufactured to the highest quality, using impact copolymer polyethylene, which provides stiffness and impact resistance properties.

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Specification

• Dimensions: A=130mm B=148mm C=54mm
• Unit Weight: 86 grams
• Material: Polyethylene
• Melting Point: 120℃/ 248℉
• Standard Colour: Fluoro Orange

Wheel Nut Locker Series (WNL): WNL05-21E, WNL06-19E, WNL06-21E

*All Available Sizes in the Locker Series (mm): 19mm (6-stud), 21mm (5-stud and 6-stud)

Fitment and Measurement Guide

Suitable for 21mm wheel nuts on 5-stud wheels on larger SUVs, heavy‑duty 4×4 vehicles, vans and medium trailers fitted with trims and step rings. Always check your wheel‑nut hex size before ordering.

How To Measure

Measure across the flats (A/F) with a vernier caliper, or check the socket size that fits your wheel nut — both methods give you the correct hex size.

How To Measure a Wheel Nut

Will dispatch ASAP (usually same business day) by Australia Post via Standard or Express Post option.