21689 · M2 Locknuts, Black Aluminum

Drawn, from the generic size M2 lock nut (locking kind not stated). * not fixed by the spec: drawn with the usual proportions for this type.

Fits these platforms (5)

Platform	How	Source
Team Associated RC10 Model 24	in the box (1 release); fitment list: direct	RC10 Model 24 Classic product page
Team Associated RC10T	fitment list: direct	RC10T Factory Team Kit product page
Team Associated RC28F	in the box (1 release)
Team Associated RC28R	in the box (2 releases); fitment list: direct	RC28 Team Kit product page
Team Associated TC28	in the box (1 release)

Generic spec	Match	Standards	Source
M2 lock nut (locking kind not stated)	functional		Thread and type read from the manufacturer's description; the standard is not cited by the brand

Year	Release	Role
unknown	Team Associated RC28R Team Kit With Body And Tires	in the box
unknown	Team Associated TC28 Team Kit	in the box
unknown	Team Associated RC28R.1 Team Kit	in the box
unknown	Team Associated RC28F Team Kit	in the box
unknown	Team Associated RC10 Model 24 Classic	in the box

Compatibility according to the manufacturer's parts lists; see each release for the source document.