Viega USA
The National Die Co.
Polymer Molding, Inc.
Monroe Aerospace (ECAS)
Lokring Technology
Latrobe Foundry Machine & Supply Co.
Jetronics, India
Essentra plc
ABB Electrification Canada ULC

10 Connector Cap Manufacturers in 2023

This section provides an overview for connector caps as well as their applications and principles. Also, please take a look at the list of 10 connector cap manufacturers and their company rankings.

Table of Contents

List of 10 Connector Cap Manufacturers

*Including some distributors, etc.

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  • Company Size: largest first
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  • United States of America
  • India
  • United Kingdom
    • Polymer Molding, Inc.
      • United States of America Address: 1655 West 20th Street, Erie, Pennsylvania, United States of America

      Manufacturer Overview

      Polymer Molding, Inc. is a manufacturer of plastics products, plastic protective caps, plugs and custom moldings. The company is located at Pennsylvania, USA and founded in 1978. The company offers plugs, caps, high-temp masking, vinyl, cable ties, netting, and tubing inserts. These types of products are usually disposable and are commonly used to protect threaded fittings, tubing, and valves and in many other applications where contamination or shipping damage needs to be avoided. In 1989, the company introduced its proprietary line of protective products and has grown to one of the great producers of these types of commodities.

    • Lokring Technology
      • United States of America Address: 38376 Apollo Parkway Willoughby, Ohio, United States of America

      Manufacturer Overview

      LOKRING Technology is headquartered in Willoughby, Ohio as an ISO 9001:2015-certified manufacturer of offload and gas connection components. The company serves numerous industries including medical devices, railroads, pipelines, and marine industries across the globe. The company’s products include adapters, caps, couplings, elbows, unions, and other connectors according to the needs of each market. The company utilizes an external distribution network for customers while also providing design guides, installation services, and installation tools.

    • Viega USA
      • United States of America Address: 585 Interlocken Blvd., Broomfield, Colorado, United States of America

      Manufacturer Overview

      Viega has a history of over 120 years and is based in Broomfield, Colorado. Viega is a developer and producer of hardware and industrial tools and pipe fitting technology. Viega’s equipment specializes in materials such as copper, stainless, polymer, lead bronze, and cupronickel. Some of Viega’s product listings include elbows, tees, adapters, flanges, caps, unions, couplings, reducers, branch connectors, tubing, manifolds, stub-outs, closet adapters, outlet boxes, press sleeves, closet risers, ballcock nuts, fasteners, sealing elements and gaskets.

    • StockCap
      • United States of America Address: 111 Manufacturers Dr., Arnold, Missouri, United States of America

      Manufacturer Overview

      StockCap was founded in 1950 and is headquartered in Arnold, Missouri as a division of Sinclair & Rush, Inc. The company is an ISO 9001:2015 certified custom designer and manufacturer of parts for the automotive, finishing, and HVAC markets. The company produces several types of products including caps, plugs, tapes, and others, using materials such as vinyl, rubber, and plastic. The company’s custom capabilities include plastic injection molding, vinyl dip and rubber molding, extrusions, thermoforming, and finishing operations.

    • Monroe Aerospace (ECAS)
      • United States of America Address: 399 East Drive, Melbourne, Florida, United States of America

      Distributor Overview

      Monroe Aerospace (ECAS) is headquartered in Melbourne, Florida with a history dating back to the 1920s. Monroe Aerospace is an ISO 9001:2015 and AS9100D certified industrial manufacturing company. Monroe Aerospace serves many vertical markets including aerospace/defense automotive, medical, and transportation. Monroe Aerospace’s product offerings include bolts, screws, cherry rivets, clamps, clevis pins, clients, DZUS products, electrical components, collars, hinges, Huck bolts, Jo bolts, lock washers, nut plates, rivets, quarter turn fasteners, sheet metal screws, and washers.

    • ABB Electrification Canada ULC

      Manufacturer Overview

      ABB Electrification Canada is a subsidiary of industrial giant, ABB. ABB Electrification serves the data center solutions, oil, gas & chemicals, food & beverage, railway, infrastructure, and microgrids industries with solutions such as smart industry, E-mobility, smart living, smart power, smart cities, and smart distribution. Products include control systems, power electronics, UPS and power conditioning, industrial software, PLPC automation, robotics, power converters and inverters, medium voltage products, metallurgy products, control room solutions, and motors and generators.

    • The National Die Co.

      Manufacturer Overview

      The National Die Co., founded in 1945, is a manufacturer and supplier of deep-draw metal stampings and parts such as cans and caps, enclosures, fasteners, nozzles and pins, tubes and cups, and exotic metals. The products are used in the fields of communications, power tools, automotive, fuel supply, and fire protection. The Wolcott, Connecticut-based company is ISO 9001:2015 certified and offers finishing and forming operations such as beading, dimpling, embossing, multi-side piercing, and set drawing.

    • Latrobe Foundry Machine & Supply Co.

      Manufacturer Overview

      Latrobe Foundry Machine & Supply Co. (LFMS) is an American manufacturer of aluminum pipe fittings established in 1933 and based in Whitney, Pennsylvania. The company produces various aluminum pipe fittings including butt weld, flanged, and threaded models, as well as flanges, socket weld couplings, and nipples. They also offer custom casting and 3D printing services, as well as in-house machining for client projects. LFMS products are primarily used by clients in construction and agriculture, as well as by companies in the marine and chemical industries.

    • Jetronics, India
      • India Address: No. 44, Virwani Industrial Estate, Ground Floor, Off Western Express Highway, Goregaon East, Mumbai, Maharashtra, India

      Company Overview

      Jetronics India is a manufacturer and exporter of MS connectors and MIL C 5015 grade electrical connectors. Guided by Mr. Anil Bangia, their partnership firm has delivered quality products for over two decades. From corrosion resistance to high current capacity, their connectors serve industries like the Military, Aerospace, and Telecommunication. Crafted from lightweight aluminum alloy, their connectors are corrosion-proof and resilient. With a range spanning lighting to transportation, Jetronics India caters to diverse applications across global markets.

    • Essentra plc
      • United Kingdom Address: Langford Locks,Kidlington, Oxfordshire, United Kingdom

      Company Overview

      Essentra Components is a producer of plastic injection moulded, vinyl dip moulded, and metal components, operating in 29 countries across 4 continents. Essentra Component has a catalog of over 45,000 products. These range from caps, plugs, wire & cable management, flange protection, knobs, handles & grips, access hardware, PCB, and electronics hardware. Essentra Component offers free samples of CADs of standard parts for assist customers in creating custom-manufacture red solutions, including prototyping and 3D printing.

Connector Cap Manufacturer Ranking

*Including some distributors, etc.

Number of Employees

Newly Established Company

  1. Jetronics, India: 1985 (38 years ago)
  2. Polymer Molding, Inc.: 1978 (45 years ago)
  3. Latrobe Foundry Machine & Supply Co.: 1933 (90 years ago)

Company with a History

  1. Latrobe Foundry Machine & Supply Co.: 1933 (90 years ago)
  2. Polymer Molding, Inc.: 1978 (45 years ago)
  3. Jetronics, India: 1985 (38 years ago)

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