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ASTM A325 Type 1 Plain
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HNB's ​Plain Steel A325 Bolts (also called Black A325 Bolts) are Made in the USA and stocked in lot controlled sealed bags. Material Test Reports are available upon request.   

Common Applications:
  • Structural steel frames
  • Beam-to-beam and beam-to-column connections
  • Industrial buildings and platforms
  • Interior structural applications
Plain Steel A325 Bolts have no protective coating and are supplied in a natural steel finish. Typically selected for non-corrosive environments.

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Volume Discounts Available — Bulk and Full Pallet Quotes Upon Request






Call 808-834-1919 or email Sales@HawaiiNutandBolt.com with your questions, submittal requests and order requirements. 

Hawaii Nut & Bolt (HNB) specializes in distributing fasteners only. As such, we are not able to provide engineering advice, approvals, or warranties for specific applications. Customers are responsible for selecting the appropriate fasteners and performing any necessary testing to confirm conformance with application requirements.