Keystone Threaded Products puts the success of its customers first. And that’s why we’ve compiled this list of our most frequently asked questions about roll threading. It’s designed to provide you with fast, accurate answers to your questions about precision roll threaded rods, nuts, lead screws, and custom fasteners.
Here, you’ll find details on specifications, materials, tolerances, lead times, and more all to support your threaded bar engineering and purchasing requirements.
The choice between roll threading and machined (cut) threading depends on your priorities — strength, surface finish, cost, material type, etc. Here’s why it may make sense for you to choose roll threading:
We provide quality high-precision roll threaded rods and custom machined products to a wide range of demanding industries including
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We’re recognized for manufacturing excellence across a multitude of industries and markets. Our products are renowned for their strength, quality, and dependability. Don’t see your industry? Give us a call today and we’ll do our best to help.
Sometimes, we take our name for granted and assume that it’s pretty self-explanatory. We make threaded products. But exactly does that mean?
We manufacture precision roll threaded solutions, specializing in Acme, trapezoidal, and unified form threads as well as large diameter threading. We make an assortment of hex, round, and cylindrical nuts to mate with our threaded rod as well as special screws and nuts to meet our customers’ needs.
There probably isn’t a material we haven’t seen or made into a roll threaded rod at some point. We manufacture threaded rods from the standard metals listed below and we can source even the most exotic materials found on our customers’ specifications.
Your material not listed? Chances are we can thread it for you. Give us a call or contact us here.
Yes, we have a wide selection of standard-sized threaded bars in most common thread configurations. We also offer fully bespoke roll threaded bar solutions. From fully threaded bar and double end studs to bolts, lead screws, and specialty fasteners, we are recognized for excellence in manufacturing standard and fully-custom products for strength, quality, and dependability.
We stock a variety of roll threaded rods in standard lengths of 12, 6, and 3 feet and in diameters from 3/8-inch to 2-inch. Keystone Threaded Products stock program products feature
Contact us directly with your questions about our stock threaded bar sizes, finishes, inventory and pricing.
Yes, we do supply complete roll threaded solutions to our customers. We manufacture standard roll threaded rod in acme, trapezoidal, and UN thread standards and our in-house specialty CNC machining capabilities enable us to manufacture precision parts complete to the exact specifications of our customers.
We also manufacture right- and left-handed acme nuts, mounting flanges, and multiple start threads.
We have in-house secondary machining and CNC capabilities as well as access to a vast network of leading specialty manufacturing partners. Some of our specialty machining capabilities include:
CNC Machining
| Specialty CNC Turning Capacity
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Yes. We take pride in our exclusive use of American-made steel in our steel threaded rod products. Did you know over 70% of all steel made in America is sustainably produced using electric arc furnaces.
All of Keystone Threaded Products’ steel suppliers are members of the Steel Manufacturers Association.
Nearly every* product we make and sell is 100% American made with 100% American sourced materials.
For over a century, we’ve worn our Made in USA badge with honor and pride. For us, Made in USA isn’t just marketing or chest-beating, it’s a way of doing business, an integral part of the Keystone Threaded Products culture that we’ve practiced since 1920.
Made in USA means that our products are manufactured, assembled, and produced wholly within the United States out of almost exclusively domestic materials, and that they meet the Made in USA standards as outlined by the US Federal Trade Commission.
This means that for the vast majority of our products, all significant parts, processing, and assembly occur in the United States, resulting in a product that contains no or only negligible imported content.
When you see the Made in USA label on our products, you can trust that you’re receiving a quality, precision-made product that’s 100% sourced, manufactured and assembled by American workers in America.
*We do our best to use and recommend only American-sourced materials, but sometimes our customers’ requirements specify specialty raw materials or processing that is not available in the U.S.
Keystone Threaded Products is the industry leader in precision roll threading. Our manufacturing capabilities are among the most robust in the industry. We offer standard and custom roll-threaded products like fully threaded bars, double-end studs, bolts, special fasteners, and nuts
We work with many thread forms:
— Acme (precision, general purpose, stub, single & multiple starts)
— Trapezoidal
— Unified forms (UNC, UNF, UNEF)
— Metric
Offer both right and left-hand thread directions, can thread bars of diameter from ¼-inch to 20-inch and have no strict upper length limit for threaded bars (common threading lengths are 12 to 24-feet).
We can manufacture threading pitches from 1.5 threads per inch (tpi) to 32 tpi.
Since 2024, Keystone Threaded Products has been a Certified WOSB. WOSB stands for Women-Owned Small Business as outlined by the US Small Business Administration (SBA) and their WOSB Certification Program.
A certified women-owned small business is one that has undergone a strict verification process to confirm it is at least 51% owned, controlled, and operated by women. In our case, that woman is Betsy Minnick, our third-generation family owner.
Because we’re a WOSB we have access to corporate supplier diversity programs, increased visibility, and the opportunities that result with our connection to the supportive women-owned business network.
Getting a threaded bar quote from Keystone Threaded Products is as easy as 1-2-3.
We do our best to turn around most quotes in 48 hours, but we are only human. If your quote is for more a complex custom item or requires some research on our part, it may take a little longer.
With every product we make and every customer interaction, we commit ourselves to 100% quality satisfaction. Our goal is to delight our customers completely with everything we do.
Keystone Threaded Products is ISO 9001:2015 certified. Our goal is100% defect-free precision roll threaded products. We conduct thorough in-process inspections on everything we make and test every single order before it leaves our docks.
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Hot dip galvanized threaded bars from Keystone Threaded Products are limited to custom products up to 3-feet in length. We do not stock any bars that are hot dip galvanized; therefore, a minimum plating charge would incur on all special orders.
Hot-dip galvanizing is a process used to protect steel or iron from rust and corrosion by coating it with a layer of zinc. The metal to be coated is cleaned and then dipped into molten zinc at around ≈840F (450C).
The zinc coating provides long-lasting protection through both a physical barrier and sacrificial (galvanic) action, ensuring durability and minimal maintenance. Hot-dip galvanized steel is commonly used in construction, infrastructure, and outdoor applications where long-term corrosion resistance is essential.
The difference between a rolled and a machined chamfer is a subtle but important distinction in mechanical design and manufacturing.
A machine chamfer (or cut chamfer) is a flat, straight-angled edge created by a cutting tool — usually during milling, turning, or drilling.
A rolled chamfer is formed, not cut. A machine chamfer is sometimes called a rolled edge or broken edge, and it’s typically formed either naturally by the rolling or forming process (like cold rolling or bending) or by light deburring/tumbling.
Keystone Threaded Products threaded bars are typically machine chamfered.
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