Company lists · Data refreshed September 2026

Top 18 Threaded insert manufacturers based in the United States

RevenueBase identified 35 threaded insert manufacturers headquartered in the United States as of September 2026 and tracks 539 professional contacts across them, including 220 with verified work emails. Oakdale is the largest hub.

This list covers threaded insert manufacturers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 30, 2026 86% judged on-target in blind review
35Companies
539Contacts tracked
220Verified emails
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The 18 largest threaded insert manufacturers based in the United States

Ranked by team size
Top 18 of 35 threaded insert manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to threaded insert manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceElmhurst, IL, United StatesHQ checked Sep 30, 2026201-500126 contacts →

Partial evidence

“Semblex Corporation engineers and manufactures advanced cold-formed fasteners and precision components for critical applications across automotive, industrial, and consumer…”

Source: RevenueBase Database · checked Sep 30, 2026
2Strong evidencePelham, AL, United StatesHQ checked Sep 30, 2026201-50079 contacts →

Strong evidence

“Vulcan Steel Products is the nation's largest manufacturer and supplier of threaded products.”

Source: RevenueBase Database · checked Sep 30, 2026
3Strong evidenceOakdale, CA, United StatesHQ checked Sep 30, 202651-20039 contacts →

Strong evidence

“Haeger, a PennEngineering® Company, manufactures hardware insertion machines, we are the world leader in the development of innovative fastener insertion technology solutions.”

Source: RevenueBase Database · checked Sep 30, 2026
4Partial evidenceHudson, NY, United StatesHQ checked Sep 30, 202651-20037 contacts →

Partial evidence

“Craftech Industries produces high performance plastic fasteners and hardware, including plastic screws, nuts, bolts, threaded rod, and custom parts.”

Source: RevenueBase Database · checked Sep 30, 2026
5Strong evidenceCarpentersville, IL, United StatesHQ checked Sep 30, 202651-20032 contacts →

Strong evidence

“Acme Industrial Company manufactures Keylocking Threaded Inserts and Studs, Swage-Serts™, and Precision Bushings for use in products around the world.”

Source: RevenueBase Database · checked Sep 30, 2026
6Indirect evidenceHartford, WI, United StatesHQ checked Sep 30, 2026201-50032 contacts →

Indirect evidence

“Carmex Precision Tools LLC is a machine tool company located in 2033 Innovation Way, Hartford, Wisconsin, United States.”

Source: RevenueBase Database · checked Sep 30, 2026
7Strong evidenceValley View, OH, United StatesHQ checked Sep 30, 202651-20027 contacts →

Strong evidence

“Keystone Threaded Products is a third-generation, family-owned manufacturer of Made in America rods.”

Source: RevenueBase Database · checked Sep 30, 2026
8Strong evidenceSmithfield, RI, United StatesHQ checked Sep 30, 202651-20027 contacts →

Strong evidence

“Groov-Pin is a leading manufacturer of Grooved Pins, Tap-Lok® Threaded Inserts, Speedserts®, Barb-Sert®s, and Precision Turned Components.”

Source: RevenueBase Database · checked Sep 30, 2026
9Indirect evidenceSanta Clarita, CA, United StatesHQ checked Sep 30, 202611-5020 contacts →

Indirect evidence

“AVK Industrial Products, located in Southern California, is a Precision Castparts Company.”

Source: RevenueBase Database · checked Sep 30, 2026
10Strong evidenceHampton, VA, United StatesHQ checked Sep 30, 202611-5015 contacts →

Strong evidence

“KATO is the original inventor and manufacturer of the bi-directional Tangless® screw thread insert.”

Source: RevenueBase Database · checked Sep 30, 2026
11Partial evidenceWaynesboro, PA, United StatesHQ checked Sep 30, 202651-20012 contacts →

Partial evidence

“Your Threading Partner.”

Source: RevenueBase Database · checked Sep 30, 2026
12Partial evidenceWaukesha, WI, United StatesHQ checked Sep 30, 202611-5011 contacts →

Partial evidence

“Rolled Threads Unlimited, LLC produces fully threaded bar, custom machined parts, fully threaded and double ended studs, bolts, lead screws and specialty fasteners from our…”

Source: RevenueBase Database · checked Sep 30, 2026
13Strong evidenceRockford, IL, United StatesHQ checked Sep 30, 202611-5011 contacts →

Strong evidence

“Family owned manufacturer of standard, semi-standard and special externally threaded machine screws, sheet metal and tapping screws, thread cutting and thread forming screws for…”

Source: RevenueBase Database · checked Sep 30, 2026
14Strong evidenceBerlin, CT, United StatesHQ checked Sep 30, 202611-509 contacts →

Strong evidence

“Tri-Star is a manufacturer of threaded inserts for plastic, both standards and specials, compression limiters and precision screw machine products.”

Source: RevenueBase Database · checked Sep 30, 2026
15Indirect evidenceEagle River, WI, United StatesHQ checked Sep 30, 202611-505 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026
16Strong evidenceGardena, CA, United StatesHQ checked Sep 30, 202611-503 contacts →

Strong evidence

“E-Z LOK is a leading manufacturer and master distributor of threaded inserts for metal, plastic and wood.”

Source: RevenueBase Database · checked Sep 30, 2026
17Indirect evidenceSylmar, CA, United StatesHQ checked Sep 30, 202651-2002 contacts →

Indirect evidence

“Tired of supply chain delays derailing your projects?”

Source: RevenueBase Database · checked Sep 30, 2026
18Partial evidenceSanta Fe Springs, CA, United StatesHQ checked Sep 30, 20261-102 contacts →

Partial evidence

“METRIC THREADED PRODUCTS Metric Threated Products.”

Source: RevenueBase Database · checked Sep 30, 2026

Showing 18 of 35 threaded insert manufacturers based in the United States

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Threaded insert manufacturers based in the United States at a glance

As of Sep 30, 2026
40.8%Verified-email coverage
15.4Average contacts per company
11-50Median size (employees)
5.7%Largest-city concentration · Oakdale
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
12
51-200
10
201-500
3

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 35 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among threaded insert manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “threaded insert manufacturers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names threaded insert manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among threaded insert manufacturers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 220 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 30, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names threaded insert manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many threaded insert manufacturers are there based in the United States?

RevenueBase identified 35 threaded insert manufacturers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Semblex Corporation, headquartered in Elmhurst, tops this list with the largest team on record.

Which city has the most threaded insert manufacturers?

Oakdale leads with 2 headquartered companies, followed by Portland (2) and Auburn (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 220 verified decision-maker contacts tracked across these 35 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.