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Your #1 Source for Custom Bolts, Screws, & Studs

With over 70 years of experience, Wilson-Garner is your trusted global supplier of American-made, limited-run fasteners. We can manufacture the custom bolts, screws, and studs you need for your project.

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We specialize in the limited-run production of cold-formed, externally-threaded fasteners made from carbon or alloy steel. Our production process ensures you get exactly the per spec fastener you need, the first time.



Self-locking bolts available in any size and in any quantity.


Special Fasteners

Limited-run quantities of non-standard fasteners are our specialty.

military products

Military Products

Custom bolts, screws, and studs for military service part applications.



Limited-run quantities of custom screws, made right the first time.

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Custom carbon or alloy steel studs manufactured in small quantities.

wheel studs

Wheel Studs

The strength and durability you need from cold-formed wheel studs.

Test Products

Whether you’re looking for a manufacturer-specific or per-blueprint product, Wilson-Garner supplies test bolts, nuts, and washers for torque-tension and bearing surface testing of locknuts, coatings, and adhesive patches. All products are American-made, certified, and completely traceable by lot, and can be manufactured to meet testing specifications of top brands like Ford, General Motors, John Deere, Chrysler, and more.

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test products

Industries Served

Wilson-Garner Company specializes in limited-run quantities of hard-to-find parts for a range of industries, including:



Proudly serving the automotive industry for 70 years and counting.


Oil & Gas

Per spec fasteners that stand up to rugged oil & gas environments.



Serving direct-to-military and military suppliers with QSLM approved parts.


Heavy Machinery

The durable, custom fasteners you need for your heavy machinery applications.

American made fasteners

American-Made Fasteners

For over 50 years, Wilson-Garner has featured American-made bolts, screws, and studs, all manufactured at our plant in Harrison Township, Michigan. Because we make our custom fasteners ourselves, we are confident in their quality — and our customers are too.

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Helpful Resources

Have questions about custom fasteners, the manufacturing process, or industry-specific solutions? Get answers.


M5 & M8 Military bolts

If you’ve ever spent time looking at different screw and bolt heads,...


In the fastener world, you’ll often hear terms like proof load, yield...

2A threads vs. 3A threads

In Part 1 of our Threads Series, we provided some terminology and explained...

Get The Custom Fastener You Need