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Hex Flange Bolts

Hex flange bolts, also called frame bolts and washer bolts, are a type of fastener with a hexagonal head and a wide flange, a flat, circular disc under the head. This flange helps distribute the load while reducing the risk of the bolt loosening over time, making hex flange bolts ideal for applications requiring high strength and vibration resistance. Hex flange bolts are commonly used in manufacturing, construction, and engineering applications. Hex flange bolts are typically used in conjunction with hex nuts to create a strong and secure fastening solution.
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Applications for Hex Flange Bolts & Screws

Because hex flange bolts feature a built-in flange that acts as a weight-distributing washer, these bolts are able to bear high load levels. Common applications for hex flange bolts include securing engine components, mounting heavy machinery, and attaching panels or structures to buildings. They are often used in machinery, engines, and other heavy-duty equipment, where the bolts need to be tightened to a high torque to secure the components together. They are also used in construction applications, including large structures requiring high strength and durability.


Wholesale Hex Flange Bolts in Bulk at EPCO Sales

At EPCO, we distribute premium fasteners at wholesale prices. Our extensive inventory includes coarse and fine-threaded hex flange bolts, with various sizes and finish options available. Not sure which hex flange bolts you need for your application? Contact us, and our team will gladly help you find the best fasteners for your job.


Sizing Options for Hex Flange Bolts

The hex flange bolts distributed by EPCO include metric and standard sizing options. Standard sizes include diameters ranging from 5/22" to 3/4" and lengths from 1/2" to 6". Metric sizes include a diameter range of M5 to M20 and lengths from 10 to 110.


Hex Flange Bolts Material Options

Our hex flange bolts have multiple material and finish options, offering various strength and corrosion resistance levels. Material and finish options for hex flange bolts at EPCO include:
  • 18.8 Stainless Steel
  • Grade 5 Steel
  • Grade 8 Steel
  • Class 8.8 Steel
  • Class 10.9 Steel
  • Plain
  • Phosphate
  • Zinc/Yellow
  • Zinc/Clear


Supplying Indiana & Southern Michigan with Industrial Resources Since 1970

Located in Middlebury, Indiana, EPCO has provided our customers in the Northern Indiana region with premium industrial fasteners and resources for decades. Our customized service & maintenance plans provide customers with inventory-stocking services at tier pricing. That means you don’t have to worry about stocking your supplies; we take care of it at a price point that works for you. Whether your business is small or large, or you're shopping on behalf of your farm or factory, EPCO is ready to provide you with the industrial resources you need.



We Distribute Industrial Products to Farmers, Small Businesses, & More

At EPCO, we serve customers in a broad range of industries, including construction, agriculture, automotive, and many more. We offer customized service plans for customers of all sizes, from small private farm operations to large manufacturing facilities. We supply a wide selection of industrial products, including fasteners, abrasives, cables, power transmission supplies, electrical components, shop chemicals, lubricants, and much more.


Contact EPCO to Learn More About Our Hex Flange Bolt Options

Want to learn more about EPCO’s products and services? Contact EPCO, and our team will be happy to assist. You can also request a quote for pricing information on bulk orders of hex flange bolts and other premium industrial products.