Our BOND WASHER™
is one continuous piece, not two separate washers with gaps between them.
This uniform clamping force promotes an intimate electrical connection, resulting in the lowest possible resistance between lug and bar. Low resistance and gas-tight seals prevent corrosion between lug and bar, resulting in the best electrical connection. Using BOND WASHER™ in your electrical bonding installations results in a gas-tight seal between lug and bar.
If you are using large flat washers, you may be grinding flats on the sides in order to fit two lugs side-by-side on the bar. If that grinding wheel you used was used previously to grind copper, steel, iron, and/or aluminum, the particles of material from those earlier grindings now have been imbedded into the sides of your flat washers to form contaminating particles, degrading your carefully-installed bond installation.
If using the large washers without grinding flats, you are either stacking washers on adjacent lugs, or you are wasting ground bar space by skipping holes.
If you use washers that are smaller in diameter to avoid stacking, are they smaller than the split washer? If so, you are not getting the full compression of the split washer against the flat washer!
If you use no flat washers, the split washer is falling into the slotted hole of the ground lug!
Some providers require a flat washer under the head of the bolt as well as under every split washer. Proper installation procedure dictates that you never place just a split washer under the nut. The reason? Ground lugs that have elongated or over-sized holes will allow the split portion of the lock washer to fall into the slot, thereby resulting in a weaker joint, mechanically as well as electrically.
In spite of all the admonitions, guidelines, and suggestions, we still see installations in the field that have stacked washers, missing flat washers, split washers that fall into the slot of the ground lug. We also see washers that are not American-made, and are of questionable material composition.
INGENUITY INDUSTRIES INC, the manufacturer of BOND WASHER™ guarantees that every BOND WASHER™ is made of 300-series stainless steel, and is produced in conformance with DFARS (Defense Federal Acquisition Regulation Supplement). It takes less time to install one BOND WASHER™ than two individual flat washers. Try a sample of the BOND WASHER™ product by giving us a call! The dimensions for a standard BOND WASHER™ are shown in the drawing above. If you have need of a product with different specifications, call us. For technical questions, call our engineer Jim Crummett at 530-743-0200, or call our office for sales at 530-933-1522.
This picture shows our two hole lug washers.
