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Why DURA-CON®?

DURA-CON® Corrosion Resistant Fasteners are the only fasteners specifically tested for use in solar racking materials.

DURA-CON® Fasteners show resistance to Environmental Corrosion equal to that of stainless steel fasteners when tested in aluminum solar panel racking.

Corrosion Resistant Fasteners

Grade 5 Hex Cap Screws
Available in 63 sizes
1/4-20 x 3/4" to 3/4-10 x 6"

Hex Washer Head Serrated Type 17 (Power-Lag™)
5/16 x 3-1/2" 

Hex Washer Head Type 17
1/4 x 1"

Finished Hex Nuts
1/4-20 through 3/4-10

 
 

Serrated Flange Nuts
1/4-20 through 3/4-10

USS Flat Washers
1/4 through 3/4

Split Lock Washers
1/4 through 3/4

 
 

WHAT KIND OF TESTING HAS BEEN DONE?

For a side-by-side corrosion resistance test, DURA-CON® Corrosion Resistant Fasteners and 18-8 stainless steel fasteners were installed in 6063 and 6105 aluminum material and exposed to 1500 hours of Salt Spray Testing in accordance with ASTM B-117 and Torque-Tension Tests have been done with DURA-CON® Corrosion Resistant Fasteners to compare with stainless steel fasteners the range of torque values required to achieve desired clamp load (tension) in a fastened joint.

HOW DID DURA-CON® PERFORM?

At the end of the Salt Spray Testing, both the DURA-CON® Corrosion Resistant Fasteners and the stainless steel fasteners showed equal resistance to Environmental Corrosion.  When the fasteners were removed from the aluminum, there was no sign of Galvanic Corrosion in the DURA-CON® Corrosion Resistant Fasteners assembly but the stainless steel assembly showed signs of Galvanic Corrosion as the aluminum was beginning to corrode.

The Torque-Tension Tests showed that DURA-CON® Corrosion Resistant Fasteners achieved desired clamp load within a much narrower range of torque values than the stainless steel fasteners.

WHAT DO THESE TEST RESULTS MEAN TO ME?

Three things:

  1. DURA-CON® Corrosion Resistant Fasteners are an upgrade from glavanized with resistance to environmental corrosion.
  2. DURA-CON® Corrosion Resistant Fasteners actually surpass stainless steel in galvanic corrosion situations when used with aluminum materials.
  3. Predictable driving torque means consistent tightening during assembly with less loss of clamp load during service.  The joint stays tight.

ARE THERE ANY OTHER REASONS TO CONSIDER DURA-CON® FASTENERS?

Yes!  The problem of thread-galling is eliminated.  If you have experienced this problem you know how frustrating it can be to have a nut “seize up” while being tightened onto a bolt.

WHAT DO DURA-CON® CORROSION RESISTANT FASTENERS COST?

In most cases, DURA-CON® Corrosion Resistant Fasteners can save money when compared to stainless steel.  DURA-CON® Corrosion Resistant Fasteners are produced to order for use in high production situations.  In those cases savings can be as high as 40% but typically run in the 25%-30% range.  The lower price plus improved performance during the assembly process (no galling, etc.) means substantial savings with increased productivity.

PERFORMANCE DATA

Salt Spray

Cyclical Corrosion Resistance


Co-Efficient of Friction

Coating Thickness

ASTM B117

CCT-I Nissan
CCT-A Toyota

Per NES D3002=/-.02

1500 hours

80 cycles
30 cycles

0.13

12 microns


Other suggested uses

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  • Playground equipment
  • Guard rails
  • Agricultural buildings
  • Coastal structures; boat docks, stairways, lifeguard towers
  • Farm and off-road vehicles
  • Truck equipment and accessories
  • Installing heating and A/C systems
  • Electrical equipment
  • Mounting satellite dishes

Featured Project

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Facebook Data Center in Prineville, OR
When visitors enter the Facebook Datacenter in Prineville, Oregon, the first thing they see is a 100kW array of PV Trackers (PVT) dual-axis solar trackers. This system was installed using fasteners from the DURA-CON® Corrosion Resistant Fasteners line, a revolutionary proprietary product by Mudge Fasteners that has recently been taking the Solar Power industry by storm.