Cup head bolts

The head of a Cup head bolts is shaped like a small cup, round and bulging, with a threaded screw attached below. This shape is designed to make it more convenient and secure when installing and fixing things. Carbon steel or stainless steel is generally used.

Product details

The specifications of Plain Finish Round Head Bolts are particularly complete, ranging from those with very thin and short bolts to those with thick and long bolts. Whether it is connecting thin iron sheets, thick wood boards, or assembling large mechanical equipment, the appropriate size can be found. Its versatility is very strong.

Cup head bolts can be used to fix agricultural equipment such as tractors or hay balers. The bolt head is flush with the metal surface to prevent dirt from accumulating in dusty fields. The hot-dip galvanized material can resist the dampness in the barn and will not rust even during the harvest process. They are easy to operate and have a stable and durable connection.

Countersunk Head Bolts with Square Necks can also be used to fix washing machines or dryers. They can withstand indoor vibrations. The smooth head can prevent clothes from being hooked, and the galvanized coating can effectively prevent the bathroom from getting damp. You can simply use a regular wrench to tighten it to prevent the screws at the back of the appliance from falling off or rusting.

Product parameters

Product feature

The most obvious feature of the Cup head bolts is the head. This round cup head is larger than the ordinary bolt head and has a larger contact area with the material. For instance, when fixing plastic plates, ordinary bolts might press out pits on the plates, but the bolt can distribute the pressure, preventing the plates from deforming and providing a better fixing effect.

Product Material

Cup head bolts are made of several common materials, each selected based on the application scenario and environmental requirements. The most widely used is carbon steel, which is cost-effective and suitable for general indoor applications, such as fixing light machinery parts or furniture components. Stainless steel 304 is another common option, offering basic corrosion resistance, so it’s used in damp environments or outdoor settings like garden equipment. For harsher conditions, such as coastal areas with salt spray or industrial zones with pollutants, stainless steel 316 is preferred due to its better anti-corrosion performance. Alloy steel is used when higher strength is needed, such as in heavy machinery or structural connections, as it can bear larger loads after heat treatment. All materials meet basic industry standards to ensure the bolts can perform their fastening function stably.

Product transportation costs

The transportation cost of cup head bolts varies depending on several practical factors. First, it’s related to the order quantity. Small batches shipped by express will have higher unit costs, while large bulk orders transported by sea or land freight are more economical. The destination also affects the cost—shipping to nearby regions is cheaper than long-distance or international locations. For international shipments, additional fees like customs duties and insurance need to be considered, and these are usually included in the total transportation cost. The weight and volume of the packages also matter, as freight is often calculated based on the larger of the two values. Most suppliers can provide a detailed transportation quotation according to your specific order quantity and delivery address. If you need urgent delivery, expedited shipping is available but will increase the cost accordingly.