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Bolt Systems

Bolthead Markings and Codes

JENNMAR Bolt Head Markings, Recommended BOLT Torque, and Cable and Threaded Bolts Color Codes

Civil Products Catalog

Combination Bolt

JENNMAR offers the industry's most proven combination bolt system in the mining industry by providing ultimate tension in weak strata.

Conventional Mechanical Bolts

All systems are configured with high strength bar: - (Grade 55 (55,000 psi minimum yield) - (Grade 75 (75,000 psi minimum yield)

Expansion Anchors

JENNMAR's expansion anchors can be combined with deformed bar and J-LOK resin to make an INSTAL bolt system, a high-performance primary bolting system.

Fast Anchor 3 Bolt System

The Fast Anchor 3 is a double corrosion-resistant steel bolt for strata control that provides quick assembly and secure installation due to its expansion shell that provides immediate anchorage and generates superior grip upon application.

FRICTION-LOK Stabilizer System

The JENNMAR FRICTION-LOK Stabilizer System is a strata control system designed to firmly control hard or soft rock. As lateral ground movement increases, the system increases its superior holding power.

INSTAL Bolt Anchor System

The Fully-Grouted INSTAL Bolt is the ideal high tension bolt due to the resin that locks bolt tension within the system, while significantly slowing down the weathering process around the bolt hole.

M3 Expandable Rock Bolt

M3 expandable rock bolts offer superior quality that responds to the most demanding roof support applications. Its high load capacity and excellent elongation properties ensure safer working conditions and faster excavation cycles.

M3 Pump

Available in hydraulic or electric pumps.

MPA Bolt System

Fast, single-step anchoring system using standard equipment. Efficient installation since drilling and grouting can be performed in a single operation, saving both time and money.

Pumpable J-LOK P

J-Lok P has been formulated for anchoring and sealing rock bolts in mining and tunneling applications.

Self Drilling Hollow Bar

The Self-Drilling bolt is a fully threaded hollow bar that initially serves as a drill rod, utilizing a lost bit. The thread is made to comply to ISO 10208. For use in unconsolidated ground or other difficult ground conditions.

Self-Drilling FRICTION-LOK

JENNMAR has developed the Self-Drilling FRICTION-LOK, a new design where the borehole is drilled and the friction bolt is installed simultaneously.