MB8 10" Heavy Duty Surface Bolt | Rocky Mountain Hardware

MB8 10" Heavy Duty Surface Bolt - Professional Grade

The MB8 10" heavy duty surface bolt delivers exceptional security for demanding applications. Featuring robust rectangular 3" mounting brackets and a precise 1¼" throw mechanism, this commercial-grade hardware provides reliable protection for heavy doors and high-traffic installations.

Professional Features

• Heavy-Duty Construction: 5/8" bolt engineered for maximum strength
• Superior Mounting: Rectangular 3" brackets distribute load effectively
• Precision Engineering: 1¼" throw ensures secure engagement
• Complete System: Includes SB6629 strike plate
• Premium Materials: Handcrafted bronze construction made in Idaho

Ideal Applications

Perfect for commercial doors, heavy residential doors, multi-point locking systems. Trusted by contractors, architects, and designers for projects requiring reliable, long-lasting door security. For larger doors, consider our MB8 12" surface bolt, MB8 18" surface bolt.

Technical Specifications

Model: MB8 10"
Bolt Size: 5/8"
Throw: 1¼"
Mounting: Rectangular 3" Mounting Brackets
Strike Included: SB6629
Optional Strikes: SB7MS mortise, SB7AS adjustable

Complete Surface Bolt Solutions

The MB8 is part of our comprehensive surface bolt collection. For different mounting styles, explore our MB9 oval surface bolt or browse our complete commercial door hardware selection.

Why Choose Rocky Mountain Hardware

For over 30 years, Rocky Mountain Hardware has crafted premium architectural hardware using recycled bronze and traditional techniques. Each surface bolt is individually made in Idaho with attention to detail that ensures generations of reliable performance.

Available Finishes: Multiple patina options to complement any architectural style. Warranty: Lifetime limited warranty on all components.