What is this product? : Cap nut JIS B-1183 is a combination of hexagon nut type-2 which has a domed shape cap welded. This cap nut is designed for preventing male thread to be exposed for specific purpose. For example; preventing male thread to be damaged, preventing human from getting injure from the male thread in public area and also prevent any unwanted contamination go through the thread of fasteners.
Cap nut also be called as decorative or beauty nut, due to its neat and clean appearance as well as increase safety sense. It has same height and width as Hexagon nut type-2, , so this can be considered as alternative application to ordinary hex nut for those purposes as above.
Cap nut have 3 types which are;
Cap nut type-1 : Cap part and hexagon part are machined into one part and there is no groove clearance for screw(Gap at the cap end when fastened)
Cap nut type-2 : Cap part and hexagon part are machined into one part and there is groove clearance for screw(Gap at the cap end when fastened)
Cap nut type-3 : Cap part and hexagon part are welded into one part
How to use? : Same as ordinary female fasteners, cap nut’s application is the same as ordinary hex nut which a wrench is needed to install. It can use to cover male thread as a single nut or use as double nut for better anti-loose purpose as it has same dimension in hexagon part as hexagon nut type-2 but in some case if long bolt are applied, cap nut may not suitable for this application. Even this is a decorative nut, please make sure to use a proper tightening torque as well.
Where to use, what kind of business using this product? : Cap nut is mostly be found in a public area which are likely to be seen or touched by human. For example; guardrail, fence, playground, parking lot, stairs, and etc. Male thread of the bolt which is exposing on these places are likely to be accidently touched by human and may cause injury or damage to their body, clothes or shoes. With cap nut covering the exposing male thread, not only make the area look clean but also increase safety as well.
Cap Nut: A Simple but Effective Fastener Solution
If you are looking for a fastener that can cover and protect the exposed threads of a bolt or a screw, you may want to consider using a cap nut. A cap nut, also known as an acorn nut, a crown hex nut, a blind nut, a domed cap nut, or a dome nut, is a type of nut that has a domed end on one side. A cap nut can provide a neat and safe finish to your fastening project, as well as enhance its appearance and performance. In this blog, we will explain what a cap nut is, how to use it, and why it is useful.
A cap nut is a type of nut that has a hexagonal-shaped head and a domed end on one side. The domed end encloses the external thread of a bolt or a screw, either to protect the thread from damage or corrosion, or to protect nearby objects or people from contact with the sharp thread. The domed end also gives a more finished and aesthetic look to the fastener, as it hides the protruding thread and matches the shape of the head.
Cap nuts are usually made of brass, steel, stainless steel, or nylon. They can also be plated with other metals, such as nickel, chrome, or zinc, to improve their durability and appearance. Cap nuts come in various sizes and specifications, depending on the type and diameter of the bolt or screw they are used with.
To use a cap nut, you need to follow these steps:
Select the appropriate cap nut for your application. You need to consider the size, shape, material, and plating of the cap nut, as well as the type, length, and material of the bolt or screw you are using. You can consult the JIS standards for the dimensions and specifications of cap nuts, or contact a cap nut supplier for assistance.
Insert the bolt or screw through the hole of the object you want to fasten, with the head facing up and the thread facing down. Make sure the bolt or screw is long enough to protrude through the hole and allow for some clearance. You can use a washer to distribute the load and prevent damage to the object.
Place the cap nut over the exposed thread of the bolt or screw, with the domed end facing up and the hexagonal head facing down. Align the threads of the cap nut with the threads of the bolt or screw, and screw the cap nut onto the bolt or screw until it is snug. Do not over-tighten the cap nut, as it may cause the thread to strip or the object to crack. You can use a wrench or a socket to tighten the cap nut, or a torque wrench to apply the correct amount of force.
Why is a Cap Nut Useful?
A cap nut is useful for several reasons, such as:
A cap nut can provide a strong and stable connection between two or more objects, as well as adjust the distance or position of the objects. A cap nut can withstand high loads and vibrations without loosening or breaking. A cap nut can also prevent the objects from sinking into each other or damaging each other.
A cap nut can protect the thread of a bolt or a screw from damage or corrosion, as well as protect nearby objects or people from contact with the sharp thread. A cap nut can also seal the thread and prevent leakage or contamination. A cap nut can extend the life and performance of the bolt or screw, as well as the fastened system.
A cap nut can enhance the appearance and aesthetics of the fastener, as it covers the protruding thread and matches the shape of the head. A cap nut can also be plated with different metals or colors, to suit the style and preference of the user. A cap nut can add a touch of elegance and sophistication to the fastening project.
Conclusion
A cap nut is a type of nut that has a domed end on one side, that covers and protects the exposed thread of a bolt or a screw. A cap nut can provide a neat and safe finish to the fastening project, as well as enhance its appearance and performance. A cap nut can be used for various applications, such as furniture, plumbing, automotive, or electrical. A cap nut is a simple but effective fastener solution that can meet your needs and preferences.
If you are looking for good quality Cap nut, please feel free to contact us. We do have Cap nut in several plating and sizes, start from 1 piece. We also provide custom made according to your drawing as well.
Cap Nut JIS B-1183 : We have fasteners over 700,000 SKU IN STOCK from M1 - M100 l Start from 1 pc l Ship from Japan to the world everyday
