Cup Head Square Neck Bolts

The appearance of cup head square neck bolts is very special. Its head is like a small cup, round and bulging. Below it is connected to a square neck section, and there are threads on the screw. They are used in some special installations.

Product applications

Cup head square neck bolts can be used to fix school laboratory equipment. Some equipment in the school laboratory, such as the drawer slides of the laboratory bench and the instrument stands, will use them. Make square grooves on the countertop or bracket, insert the bolt square neck, then install the slide rail or bracket and tighten the nut. When conducting experiments, the equipment won't shake and it will be safer.

It can be used to build electric bike sheds at home. When you build an electric bike shed at home by yourself, you can use them to fix the steel frame of the shed roof or connect the brackets. The cup head can prevent the surface of the steel frame from being scratched, and the square neck makes installation easier. There is no need to painstakessly fix the bolts. One person can quickly set up the carport and protect the electric vehicle from wind and rain.

When farmers repair plows or harrows, they will use cup head square neck bolts. They can firmly grip the rusty joints and effectively prevent the accumulation of soil. Hot-dip galvanized steel material can effectively cope with the humid environment in the field, ensuring that there is no need to stop the machine during the harvest period.

Product parameters

Product features

Cup head square neck bolts have a cup head and a square neck. This round cup head has a larger contact area than the ordinary bolt head. When tightened, it can evenly distribute the pressure to the material surface. They can be used to fix plastic plates. When installing, make a square groove on the material that matches the size of the square neck. Insert the bolt into it, and the square neck will be stuck in the groove, just like a key being inserted into a lock hole. When tightening the nut in this way, the bolt will not rotate along. Workers do not need to fix the bolt with one hand and tighten the nut with the other.

Product usage instructions

Using this fastener is simple—no special skills needed. First, line up the parts you're joining so the holes match. Slide the bolt through; make sure the square neck slots into the square hole in the part—this stops it from turning while you tighten things up.

If needed, add a washer on the other end (it spreads out the pressure and helps keep things from coming loose). Then thread on the nut. Tighten it with a wrench until it's snug, but don't overdo it—you don’t want to strip the threads or harm the parts.

These are often used in farm equipment, furniture building, or light construction jobs. We're a factory in China, so you can order in bulk or wholesale. We also make custom sizes if what you need isn’t standard. Just ask for a quote, and we’ll reply soon.

Product Packaging

We pack these parts to make sure they arrive in good shape—nothing too complicated. For smaller orders, we wrap each bolt in a plastic bag to keep it from getting scratched, then put all the bags into a regular cardboard box.

If you're ordering in bulk, we use stronger boxes with dividers inside so the bolts don't bang around during shipping. For really large orders, we can also stack boxes on wooden pallets to make loading and unloading easier.

Each package comes with a simple label showing the order number, quantity, material, and our brand—XIAO GUO. That way, it's easy to check everything when it arrives.

If you need special packaging (like your own logo on the label), just let us know when you order. We can usually do that for you without extra charge, and it won’t slow things down.