What is Plastic Threaded Rod?
Plastic threaded rod, also referred to as a stud, is a bar of round plastic material threaded in a helical structure. It is used to convert between rotational and linear movement or force. Thus, threaded rod creates a strong resistance to pressure and tension. The direction of the rotation the threaded rod creates depends on whether the rod has a right-hand thread or a left hand thread.
What is Plastic Threaded Rod Used For?
It is used to align support systems. Threaded rod can be embedded in materials such as concrete, wood or metal to temporarily create a steady structure during construction as the threads provide good resistance. It is used in support systems in the construction industry but also in plumbing, manufacturing, medical implants, marine, agricultural, oil extraction, stone cladding and contractor work.
Threaded rod is also used when the structures that need to be fastened are further part then even the longest bolt or screw. Sometimes coupling nuts are used to connect long lengths of threaded rod. It is used to make bushings, seals, set screws and other plastic components. And it is used in construction projects and conveyor systems. Some threaded plastic rod is used in gear wheels, cams, bearings and rollers.
Materials for Threaded Rod
Threaded rod is often made from metals. However, in some applications plastic threaded rod is a better choice. Some of these plastics include PEEK, Nylon, PVC, Vinyl Ester, Acetal/Delrin, and PTFE (Teflon.)
PEEK Threaded Rod
PEEK is often used for medical implants in the human body.
In medicine it is regarded as an advanced bio material. Unfilled PEEK can be more easily removed than metal implants.
PEEK also demonstrates radiolucency which is the capability of a substance to allow a large amount of x-rays to pass through it, thus producing darkened images on x-ray films. Radiolucency permits a surgeon to better monitor the healing progress following a surgical procedure. Also, is MRI compatible.
Nylon Threaded Rod
Plastic threaded rods made from nylon are used in electronics as it is both nonmagnetic and noncorrosive. It has high tensile strength and can bear hundreds of kilograms of weight. Additionally, it is resistant to flame, sparking and many chemicals. And relative to many other types of plastics, it has a high melting point. Nylon threaded rod is used in refrigerator installations. And as it is light weight and is often used in light use furniture. Nylon is sturdy and affordable.
PTFE (Teflon) Threaded Rod
PTFE threaded rod is notably less strong than other plastic rods. Like most plastics it is an excellent electrical insulator. And nothing sticks to PTFE rod. Even a gecko can not hold on. It is inert to most acids and bases as well as most organics. Additionally, it performs well in mixed chemicals and hydrofluoric acid. Hydrofluoric acid is used in the photo-resist process in semi-conductor manufacturing. When compared to other plastics, PTFE performs better in corrosive environments at high temperatures.
Vinyl Ester Threaded Rod
Plastic threaded rods made from vinyl ester are both water and chemical resistant. It is light weight and non-conductive. Vinyl ether is higher in strength and more durable than nylon. It can be stronger than some metal threaded rod.
Acetal Homopolymer and Copolymer Threaded Rod
Acetal threaded rods are good for wet environments. Nylon absorbs water as does fiberglass rod. It is a relatively lower cost material and also resists alcohol, many solvents and gasoline.
Plastic threaded rod made from Delrin® acetal homopolymer is commonly used for gear wheels, cams, bearings, and rollers. The good electrical insulating and dielectric properties of Delrin® make it an excellent choice for electrically insulating components.
Ultem® Threaded Rod
Ultem® threaded rod is not as commonly used as the others named above. This material is known for being microwave clear. If that is a requirement of your application then this material is the answer.
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