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View Our New Catalog - Over 100,000,000 Items in Stock - Ready to Ship!

Hex Head Cap Screws from O'Brien Supply
Hex Head Cap Screws

Anchors from O'Brien SupplyAnchors

Bolts from O'Brien SupplyBolts

Nuts & Locknuts from O'Brien Supply
Nuts & Locknuts

Machine Screws from O'Brien SupplyMachine Screws

Pins & Rings from O'Brien SupplyPins & Rings

Rivets from O'Brien SupplyRivets

Socket Screws from O'Brien SupplySocket Screws

Tapping Screws from O'Brien SupplyTapping Screws


Metric FastenersMetric Fasteners

Woodworking Fasteners from OWoodworking Fasteners

Stainless Steel Fasteners from O'Brien SupplyStainless Fasteners

Brass fasteners from O'Brien Supply
Brass Fasteners

Threaded Rod from O'Brien Supply
Threaded Rod
Shaft Collars

• Cable Ties • Shaft Collars • Clinch Nuts
• Clinch Studs • Shaft Retainers • Standoffs
• Spacers • Grease Fittings • Woodruff Keys
• Hose Clamps • Coiled Inserts • Leg Levelers
• Weld Fasteners • Tamper Proof Screws
• Threaded Inserts and More
Inventory Management Fastener Stocking as EASY as 1, 2, 3!
  • No out of stock items! • No freight! • No hassles!

O'Brien Supply currently maintains stock for dozens of companies in the area. Our stocking program
saves you time, money and headaches that may be associated with your current system. You will never run out, your price will never change and since we put them away, you won’t pay any freight!

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Inventory Management

Call Today and set up your account!!

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Challenge Us
  • - Over 100,000,000 items
       in stock ready to ship.
  • - Special Bulk Pricing
  • - Nuts and Bolts by the
      pieces, box, or bulk
  • - Fast order turnaround
  • - 100% Satisfaction
  • - No minimum order
Learn More
  • Zinc
  • Black Zinc
  • Zinc and Yellow
  • Black Oxide
  • Brass
  • Custom Painted Heads
  • and many more......


We have fasteners
for the toughest environments.
We maintain one of the largest supplies of stainless steel but are available in Brass, Aluminum and other
Non-Ferrous materials.
We even have decorative finishes & painted heads.

O'Brien Supply | 4780 Industry Drive | Fairfield, Ohio 45014 | 1-800-829-6409