https://www.amazon.com/Brass-Extended-Wheel-Upgrades-Crawler/dp/B08PSVP38R
You need the bolts like on here, theyre hollow on the inside
4Pcs Brass Extended 7mm Hex Wheel Hubs 8mm Thick for AXIAL SCX24 Upgrades 1/24 RC Crawler Car+5mm https://www.amazon.com/dp/B08PSVP38R/ref=cm_sw_r_cp_api_glc_fabc_yuBaGbK930KBP?_encoding=UTF8&psc=1 Gotcha. Hope it helps