Option Parts SMJ brass M4 serrated flanged wheel nuts août 1, 2022 by Chris Laisser un commentaire Japanese company SMJ have introduced their new brass M4 serrated flanged wheel nuts. These high-precision serrated flange wheel nuts are machined from high-quality brass material. Weighing only 1.4g per piece, the nuts feature machined serrations that bite firmly into the wheel to securely hold it in place. Higher traction can be obtained by replacing the standard aluminum wheel nuts on 1/10th scale touring cars with these brass wheel nuts. PartagezTweetezEnregistrer0 PartagesAbout ChrisFounder of circusrc.com, journalist & photographer in the RC world for several years, Chris is passionate about RC, racing and technique. Whether in France or in the world, he is trying to bring high-quality information and photos for enthusiasts... and make you want to join the world of RC!