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Flexco® Bolt Hinged Fastening System

  • Bolt Hinged Rocks
  • BR Vertical
  • BR Pulltey
  • Hinge Pins

The Flexco® Bolt Hinged Fastening System is ideal for belt conveyor applications subject to length adjustments because the joint can be separated easily by removing the hinge pin. A combination of penetration and compression delivers strength and reliability to belts operating over smaller pulleys.

Why Bolt Hinged?

  • Mechanical fastener rating from 190 to 300 PIW (33-52 kN/m)
  • Belts from 1/4” to 5/8” (6 mm to 16 mm) thick
  • Pulley diameters from 6” to 9” (150 mm to 225 mm)
  • Hinged fastener with easy-to-install nuts and bolts
  • Easy joint separation with pin removal
  • Perfect for applications with belts operating over small pulleys
  • Specially formed teeth penetrate belt carcass for added strength without damaging fibers
  • Piloted bolts for quick and easy installation
  • Curved templet aids in accurate placement of bolt holes and uniform tension across the full belt end

Installation Method

  • Portable tooling
  • Choice of hand or power installation
  • Fasteners

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How Flexco® Bolt Hinged Fasteners Work 

Bolt HInged

Flexco® Bolt Hinged fasteners provide a flexible joint for belts operating over small pulleys. Because the joint is easily separated by simply removing the hinge pin, entire belt sections may be added or eliminated. Designed as a compression fastener, the Flexco® Bolt Hinged model is fastened to the belt ends with high strength bolts. The bolts compress the plates into the belt cover.

Additional holding capability is provided by the fastener teeth that imbed in the belt without damage to the belt carcass. This combination distributes the splice tension across the entire plate width while the teeth secure the fastener into the belt carcass to resist pull-out. 

Fastener Size For Belts With
Mechanical Fastener Ratings Up To:
Belt Thickness Range Recommended Minimum Pulley Diameter
Operating Tension
Under 100% of Belt Rating
Operating Tension
Under 75% of Belt Rating
190 33











6-16 9 230 7



To maximize fastener service life, fastener material must be matched to the application. Flexco manufactures fasteners from a broad range of materials. Our selection makes it easy to specify a fastener that will deliver maximum performance in a variety of conditions—from wet and abrasive applications to highly corrosive environments.

Galvanized Steel: For basic applications, galvanized steel is recommended. It is magnetic, offers good abrasion and rust resistance, but is not recommended for corrosive environments.
Stainless Steel: Stainless steel provides extra resistance to abrasion, magnetic attraction, and corrosion from acids and other chemicals.
MegAlloy®: Features superior resistance to wear and abrasion. Provides several times the service life of steel. Not recommended where
impact of corrosion is a problem.
Everdur: A corrosion-resistant copper and silicon alloy. Fully non-magnetic and spark-free, low in resistance to abrasion.

Fastener Material Magnetic Abrasion Resistant Chemical Resistant Rust Resistant Sparking
Galvanized Steel Yes Good Poor Fair Yes
Stainless Steel (300 Series) Slightly Good Good to Excellent Excellent Yes
MegAlloy® Yes Excellent Poor Poor Yes
Everdur No Poor Poor Poor No


When standard products just won't do.
Flexco Mineline® products are designed and engineered to work in some of the toughest applications in the world that test the strength and durability of your conveyor system. Products carrying the Mineline® name are proven to work — even where other products have failed.