Insights

Diverse Market Applications Lock Joint Tube serves a wide range of industries including medical facilities, automotive, furniture, retail, and marine, indicating opportunities to tailor solutions for various fabricators and OEMs with diverse tubing needs.

Recent Expansion & Partnerships The company's recent office expansion in Texas and the partnership with Arraytech for solar tubing supply suggest growth ambitions and emerging markets in renewable energy, presenting potential avenues for targeted outreach and new product offerings.

Strategic Location & Capacity With locations in Indiana, Ohio, and Texas, Lock Joint Tube's strategic presence across key US regions supports regional sales efforts and the ability to serve local manufacturing demands efficiently.

Financial Range & Growth Potential Revenue estimates between $10M and $50M position Lock Joint Tube as a mid-sized manufacturer with room for growth, making it a viable target for expanding product lines or custom solutions in steel tubing.

Industry Trends & Innovation The company's focus on supporting fabricators and OEMs with critical specifications aligns with industry trends towards specialized, high-quality steel components, suggesting opportunities to promote advanced or customized tubing solutions to maintain competitive advantage.

Lock Joint Tube Tech Stack

Lock Joint Tube uses 8 technology products and services including Google Optimize, Cloudflare Web Optimizations, Open Graph, and more. Explore Lock Joint Tube's tech stack below.

  • Google Optimize
    A/B Testing
  • Cloudflare Web Optimizations
    Analytics
  • Open Graph
    Content Management System
  • Mailgun
    Email
  • AMP
    Javascript Frameworks
  • Element UI
    Javascript Frameworks
  • HTTP/3
    Web & Portal Technology
  • X-Content-Type-Options
    Web & Portal Technology

Lock Joint Tube's Email Address Formats

Lock Joint Tube uses at least 1 format(s):
Lock Joint Tube Email FormatsExamplePercentage
First.Last@ljtube.comJohn.Doe@ljtube.com
66%
LastF@ljtube.comDoeJ@ljtube.com
21%
F.Last@ljtube.comJ.Doe@ljtube.com
11%
Last@ljtube.comDoe@ljtube.com
2%

Frequently Asked Questions

Where is Lock Joint Tube's headquarters located?

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Lock Joint Tube's main headquarters is located at 515 West Ireland Road, South Bend, Indiana 46614, US. The company has employees across 2 continents, including North AmericaAsia.

What is Lock Joint Tube's phone number?

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You can contact Lock Joint Tube's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Lock Joint Tube's official website and social media links?

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Lock Joint Tube's official website is ljtube.com and has social profiles on LinkedIn.

How much revenue does Lock Joint Tube generate?

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As of October 2025, Lock Joint Tube's annual revenue is estimated to be $44M.

What is Lock Joint Tube's NAICS code?

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Lock Joint Tube's NAICS code is 31-33 - Manufacturing.

How many employees does Lock Joint Tube have currently?

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As of October 2025, Lock Joint Tube has approximately 201 employees across 2 continents, including North AmericaAsia. Key team members include Vice President Operations: G. R.President: L. H.Owner: J. R.. Explore Lock Joint Tube's employee directory with LeadIQ.

What industry does Lock Joint Tube belong to?

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Lock Joint Tube operates in the Manufacturing industry.

What technology does Lock Joint Tube use?

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Lock Joint Tube's tech stack includes Google OptimizeCloudflare Web OptimizationsOpen GraphMailgunAMPElement UIHTTP/3X-Content-Type-Options.

What is Lock Joint Tube's email format?

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Lock Joint Tube's email format typically follows the pattern of First.Last@ljtube.com. Find more Lock Joint Tube email formats with LeadIQ.

When was Lock Joint Tube founded?

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Lock Joint Tube was founded in 1919.

Lock Joint Tube

ManufacturingUnited States201-500 Employees

Lock Joint Tube manufactures mechanical and structural grade steel tubing from hot rolled, cold rolled, aluminized and galvanized steel, Lock Joint Tube services fabricators, distributors, and OEMs with different sizes and shapes. 

Lock Joint Tube serves numerous market segments. In hospitals, you'll find our tubing in IV stands, bedside tables and chairs as well as for railings throughout medical facilities. On the road and near beaches as components for boat trailers. Or in your neighborhood as the support members of satellite TV dishes.

Lock Joint Tube provides the automotive market with a variety of component parts from exhaust systems on tractor trailer rigs to running board assemblies on sports utility vehicles to structural beams on Class A motor home chassis to the steel frames of trucks such as the Ford F-150.

For the office furniture and institutional furnishings market, our material is specified for desks, chairs, tables, office partitions and cafeteria furnishings. In retail stores, our tubing forms the structure for many of the chrome plated and painted racks, shelving and merchandising islands for an assortment of goods.

We understand existing marketplace needs as well as prospective opportunities. Lock Joint Tube supports fabricators as well as original equipment manufacturers. The issue may be a critical dimension, a surface finish or a severe fabricating requirement. Regardless, we share your concerns and your need to find the best possible solution.

Section iconCompany Overview

Headquarters
515 West Ireland Road, South Bend, Indiana 46614, US
Phone number
Website
ljtube.com
NAICS Code
31-33 - Manufacturing
Founded
1919
Employees
201-500

Section iconFunding & Financials

  • $100M$250M

    Lock Joint Tube's revenue is estimated to be in the range of $100M$250M

Section iconFunding & Financials

  • $100M$250M

    Lock Joint Tube's revenue is estimated to be in the range of $100M$250M

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