The Mittler Bros. Rotor Bolt is the 5/16″-24 x 3/4″ socket head cap screw (SHCS) used to mount the brake rotor and rotor adapter plate on Mittler Bros. / Tanner GN rear hub assemblies. Sold as a 15-piece kit — enough for a complete single-hub 8-hole or 10-hole rotor adapter installation.
18 bolts are used per hub in the complete 5×5-1/2 rear hub kit (SKU 1400-403-R/L). Also available as a 15-pack (SKU 1400-504-15-15) for a full hub replacement set. Stock extras on the shelf so a stripped or missing rotor bolt never holds up a build or service interval.








