BigBolts' washer offerings include the two most popular styles of flat washers available in a high strength “through hardened” design or in a plain carbon steel design.

  1. USS Wide Series
  2. SAE Narrow Series
  3. BigBolts also offers F436 structural washers and plow bolt washers.

    BigBolts' lock washer line consists of the three most popular styles of helical spring lock washers:

    1. Light Series
    2. Regular Series
    3. Heavy Series
    4. Our range of washer offerings covers almost any conceivable industrial need. Made from high quality materials to achieve a long durability, our washers are some of the best available. Take a moment to browse our selection and find the perfect fit for your needs.

You and Us


Chances are, as you're reading this, there is some dirt under your fingernails and perhaps scabs on your knuckles. You are the bold one who doesn't shy away from removing a few bolts and nuts to see what's going on. You're reading this because you want to make sure you are dealing with a company that you can rely on to supply the right parts when you need them. And, whatever big project you are working on now, is a stepping stone for a bigger one. If that assessment feels right, go ahead and let us know.


We exist for one reason: there are big machines out there that need big bolts and nuts to hold them together. We launched this company with a simple mission; to provide large diameter high quality fasteners with a great customer experience. We stand behind our products with integrity, knowledge and confidence and we stand behind our service with a commitment to you. If for any reason you aren't smiling when dealing with BigBolts.com, let us know.

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