Shoulder Bolts
In All Grades

Shoulder bolts, or shoulder screws, are machine screws with an unthreaded shoulder under the head that is larger in diameter than the threads. There are two basic shoulder screw categories: “Commercial Grade” and “Precision Grade”, and Big Bolt carries them all.

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Shoulder Bolt examples & Specs

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Shoulder Bolts Specs

We offer the highest quality fasteners with the quickest turnarounds. If we don't have it in stock we can easily make it for you. Our versatile machining facilities can provide next-day manufacturing, even on custom orders.

  • We offer 0.25 - 3 inches diameters and up to 30 inches in length.
  • Our flat sockets are available from 0.25 - 1.5 inches in diameter.
  • We also provide button sockets and socket set screws.
  • There's no minimum quantity for you to buy.
  • Custom fasteners manufactured overnight when needed.
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Bulk, Rush, customwe got you covered.

We understand that there are situations when you need your fasteners—fast. So, we’re always prepared to handle the biggest orders and have them rushed to you in days, not weeks. And if the item you’re looking for is not in stock, we can usually manufacture it by the next day and ship it to you instantly.

Quality Fasteners For Any Project

Browse our inventory of high-quality fasteners. We offer a wide range of fasteners for all projects.

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Bolts
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Nuts
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Rods
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Screws
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Structural
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Studs
Washers
Washers
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ACME
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Metric
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Custom