Product Catalog

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Primary Roof/Rib Support & Rock Reinforcement

Bendable Bolts

JENNMAR's Bendable Bolts are available where bending is necessary to permit installation of bars that are longer than the mine opening height.

Bolthead Markings and Codes

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

Cable Products

JENNMAR offers a complete line of cable support products. These products are based on 7-strand, high-strength cable. JENNMAR offers an industry-leading line of cable products including: non-tensioned cables, post-tensioned cables, tensionable cables for primary roof support, and fully-grouted cables.

Cable Reels

Cable Tensioning Unit (CTU)

A Cable Tensioning Unit (CTU) is portable device that will pre-stress various size cables.


The CABLE-LOK Shell is a spring-loaded shell that can be automatically set on installation.

CBJ-1 Cable Bolt Tensioning Unit (CTU)

For Installation of Bearing Plates

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)

Cuttable and Corrosion Resistant Products

JENNMAR offers a cuttable high strength molded fiberglass rib pan and plates for environments requiring corrosion resistance.

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.

Galvanized Coated Products

JENNMAR is capable of providing powder coated, epoxy coated and galvanized products.

Headed Rebar Bolts

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.


JENNMAR offers the JENN-TENSION roof bolt re-tensioning system for a quick and economical alternative to replacement of loose roof plates.

J-LOK Resin

The J-LOK resin in the cartridge is used to anchor bolts to the surrounding strata. This unification of the resin, bolt and strata layers provides the necessary strength and rigidity to prevent sag by acting as a reinforcement which anchors the individual stratified layers of rock into a single high strength beam.

JM All Thread Bar

JM CABLE Fully Grouted Cable Bolt

The JM CABLE Fully Grouted Cable Bolt is proven to be a very versatile roof support due to its ability to control many different ground conditions, from increasing the lifespan of standard cable bolt supports in long-term main entry systems to stopping the ingress of water.

JM CABLE INSTAL CC Tensionable Cable Bolt

The INSTAL CC Cable Bolt cable bolt is part of the INSTAL family of tensionable cable bolts and is the only tensionable system approved by MSHA as primary support.

JM CABLE Post-Tensioned Cable Bolt

Post-Tensioned Cable Bolt (PT) is manufactured using 0.6 or 0.7" cable and incorporates resin mixing bulbs and a stiffener tube.

JM CABLE Silicone Injected Cable Bolt

The JM CABLE Silicone Injected Cable Bolt allows use of longer cable bolts without concerns about water from drilling into aquifers in the above strata.


M3 Custom Protective Coating

Applying coatings to our products isolates and actively protects the product making them resistant to corrosive environments.

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

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.

Pourable Resin Grout

Once cured, the Pourable Resin Grout forms an effective corrosion barrier from a pH of 2 through a pH of 11.

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.

Tensioned Rebar Bolts/TT Anti-Friction Washer

JENNMAR's tensioned rebar bolts have threaded ends and can be used as fully grouted or point anchored systems.

Truss Systems

JENNMAR offers the mining and tunneling industries the most reliable, high strength truss systems available.


YIELD-LOK Bolt is a new generation of yielding rock bolt that provides reliable ground control in both seismic and convergence ground conditions. It is fully grouted with resin or cement in application and provides immediate primary support on installation.