Drum Mounting Bolt, 1/2" x 1-3/4" Long

A Drum Mounting Bolt (1/2" x 1-3/4" long) is a heavy-duty fastener used to secure a brake drum to a vehicle’s hub or axle assembly.

Description:

• Diameter: 1/2 inch (the thickness of the bolt shaft)
• Length: 1-3/4 inches (measured from under the head to the end of the threads)
• Typically made of hardened steel to handle high stress and vibration
• Often features coarse threads for strong grip in metal components
• May include a hex head for tightening with a wrench or socket

Function:

• Its main job is to firmly hold the brake drum in place against the hub.
• It ensures the drum stays properly aligned while the wheel rotates.
• Helps transfer braking force safely by keeping components tightly secured.
• Prevents loosening due to vibration, heat, and repeated braking cycles.