Sierra Pacific Supply Company

Custom Manufacturing

Si brand bolts and customization take fastener solutions to the next level! Our unparalleled expertise and cutting-edge technology allow us to provide customers with custom-made bolts that meet their exact specifications while adhering to strict industry standards for quality and performance. Si brand bolts are highly trusted and meet all AN, MS, and NAS specifications. Whether it’s a special size, material, or finish, our team of experts will work closely with customers to create a personalized solution that exceeds their expectations.

  • Over 20 years of bolt manufacturing experience
  • Registered headmark in the HB-57, (Si)
  • Manufacturing hex cap bolts, carriage bolts, and more
  • Efficient quote turnaround time of 48 to 72 hours, with a minimum requirement of only 100 pieces.
  • Shipping both nationally and internationally
  • We deliver all bolts with full certificates and our quality seal of approval.
  • In-stock bolts are also available and ready for same day shipping.

Need a custom bolt?

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