10 Screw Plug Manufacturers in 2023
This section provides an overview for screw plugs as well as their applications and principles. Also, please take a look at the list of 10 screw plug manufacturers and their company rankings.
Table of Contents
What Is a Screw Plug?
A screw plug is a plug that is screwed in.
Various types of screw plugs are manufactured, depending on the screwing method and whether a hole is through or not. For example, there are hexagonal hole type, hexagonal flange type, and hexagonal flange with a mortise, etc. There are also various combinations with or without through holes.
In addition, there are a wide variety of screw pitches, such as coarse thread for m10 or less, 1.5 mm for m12 or more, and other specifications.
Uses of Screw Plugs
Screw plugs are sometimes used to plug fluid orifice holes or as mechanical element parts in mold-related fields.
Screw plugs range in size from as small as m3 to as large as m48 (with a pitch of 2 mm), and the most suitable one is selected according to the application. The screw plugs are designed for ease of use so that the thickness of the flange remains the same even when the bore diameter is large.
Features of Screw Plugs
Screw plugs generally have a large-diameter thread.
The nominal diameter of screw plugs is large, ranging from m5 to m18, and the materials used are often oil cans, etc. Therefore, durability, chemical resistance, and airtightness are required rather than strength.
For example, the main body is made of "free-cutting steel" with low carbon content "sum22k" and "trivalent chromate treatment," and "NBR" nitrile rubber is usually attached as an oil seal to prevent leakage and ensure airtightness.
On the other hand, screw plugs used for piping, etc. are set screws without heads and are also called "sunken plugs." They have hexagonal holes and are made of austenitic stainless steel, such as SUSxm7 (equivalent to SUS304).
There are many products with the same name but different impressions depending on the field.
List of 10 Screw Plug Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- Germany
- India
- United States of America
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MiniTec
Screw plug G1/4"
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SERTO AG
Screw plug NPT
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Martigrap
KIT SCREW-PLUG FIXTERM
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Screw Plug Manufacturer Ranking
*Including some distributors, etc.Number of Employees
- PHOENIX CONTACT: 20,300
Newly Established Company
- Omega Engineering,Inc: 1962 (61 years ago)
- Norelem: 1958 (65 years ago)
- PHOENIX CONTACT: 1923 (100 years ago)
Company with a History
- HEINRICH KIPP WERK GmbH & Co. KG: 1919 (104 years ago)
- PHOENIX CONTACT: 1923 (100 years ago)
- Norelem: 1958 (65 years ago)
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