Lock nuts have a nylon insert or deformed thread that grips the bolt, so they resist working loose under the vibration of an RC car.
Nuts
RC nuts and lock nuts in steel and aluminium, in common sizes.

Ultimate Racing 3mm Purple Alu Nylon Nut Flanged (10) #UR1503-P
SKU: UR1503-P9,90 €In stock (5)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ultimate Racing 3mm Red Alu Nylon Nut (10) #UR1502-R
SKU: UR1502-R8,90 €In stock (3)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ultimate Racing 3mm Red Alu Nylon Nut Flanged (10) #UR1503-R
SKU: UR1503-R9,90 €In stock (5)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ultimate Racing M4 Black Alu Nylon Nut (10) #1512-N
SKU: UR1512-N9,90 €In stock (5)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ultimate Racing M4 Black Alu Nylon Nut Flanged (10) #UR1513-N
SKU: UR1513-N9,90 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Ultimate Racing M4 Blue Alu Nylon Nut (10) #UR1512-A
SKU: UR1512-A9,90 €In stock (5)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ultimate Racing M4 Blue Alu Nylon Nut Flanged (10) #UR1513-A
SKU: UR1513-A9,90 €In stock (1)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ultimate Racing M4 Golden Alu Nylon Nut (10) #UR1512-G
SKU: UR1512-G9,90 €In stock (5)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ultimate Racing M4 Green Alu Nylon Nut (10) #UR1512-GR
SKU: UR1512-GR9,90 €In stock (5)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ultimate Racing M4 Green Alu Nylon Nut Flanged (10) #UR1513-GR
SKU: UR1513-GR9,90 €In stock (5)Delivery within Estonia 2-3 working days, other European countries 10 days.
Ultimate Racing M4 Orange Alu Nylon Nut Flanged (10) #UR1513-G
SKU: UR1513-G9,90 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Ultimate Racing M4 Pink Alu Nylon Nut (10) #UR1512-PK
SKU: UR1512-PK9,90 €On backorderDelivery within Estonia 2-3 working days, other European countries 10 days.
Frequent Questions & Answers
What are lock nuts for?
What size RC nuts do I need?
Match the nut thread to your screws, commonly M3 or M4. Check your car’s manual for the sizes it uses.
Steel or aluminium nuts?
Steel is strong for high-load spots. Aluminium is lighter and colourful for low-stress areas, but softer, so keep it off critical joints.












