Losi wheels on b4.1 worlds hex help

[RDG 40]

Have a worlds now but want to use my losi 22 wheels on it it has hex conversion front and rear as im keepin my 22 for high grip

The wheel nuts go on but dont allow a driver in, can anyone reccomend any small wheel nuts that would go in losi recess wheel and allow to be tightened??

Must be serrated aswell

Thanks in advance

[RDG 40]

Eds works a treat all sorted