Product Applications

The three most popular ways users protect nuts and bolts from corrosion are as follows:

  1. The use of SAP-SEAL® caps over nuts and bolts
  2. The use of coated nuts and bolts
  3. The use of stainless steel nuts and bolts

Coated Nuts and Bolts

Users can choose to purchase nuts and bolts that are coated with corrosion preventing properties during the manufacturing process. Because the corrosion preventing coating is applied to the nut and bolt at the factory, the coating is subjected to harmful wear and tear during the handling, transportation and assembly process. The protective coating on a majority of these nuts and bolts becomes compromised the moment they leave the factory. This ultimately requires time-consuming and costly re-coating at the job site. Unfortunately, in most cases, job site repairs to re-coat damaged nuts and bolts are rarely performed resulting in the use of unprotected nuts and bolts. The degradation of the corrosion prevention properties has now doomed the long-term performance of the asset. Because of this "once unnoticed problem", more and more users are adapting the screw-on cap method to protect against corrosion. It's simple. It's economical and it's proven... and it's easy to see which nuts and bolts are not protected... they are the ones without the caps!

Stainless Steel

The use of stainless steel nuts and bolts to protect against corrosion is certainly an option. However, expensive stainless steel is not offered in all sizes and can be 4 to 6 times the price of standard steel nuts and bolts. If an end user is simply using stainless steel nuts and bolts to prevent corrosion, then it is fiscally responsible for them to evaluate the corrosion prevention capabilities of screw-on caps.

Where are SAP-SEAL® caps most widely used?

Bridge Engineers
Builders, Consultants, DOTs
Manufacturers (OEMs)
  • Wind Turbines, Oil Rigs
  • Pipeline Flanges - Gas, Oil, Water, Sewage, Other
  • Refineries & Manufacturing Plants
  • Bridge Expansion Joints
  • Grinders
  • Outdoor Advertising Signs & Light Posts
Distributors
  • Manufacture Representatives
  • Fastener Companies
  • Corrosion Prevention Specialists
  • Construction Contractors
Corrosion Specialists
  • Utility Company Employees
  • Consultants
  • DOT Employees
  • Maintenance Companies
Cross Section

For more information or to order, call 941-993-4316