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.
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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.
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.
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.
*Including some distributors, etc.
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Phoenix Contact is headquartered in Blomberg, Germany, originally founded in 1923. Phoenix Contact’s Israeli subsidiary was founded in 2006 and located in Quadima Tzoran. Phoenix Contact provides tools and components for e-mobility, power, infrastructure, process industry, production manufacturing, system manufacturing, and others. Phoenix Contact’s product lines include automate including cloud computing, connect including PCB terminal blocks, “mark, assemble, and install” including hand tools, “supply, charge, and protect” including power distributors, and “switch, measure, and monitor” including relays and optocouplers.
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