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Product Introduction
An elevator bolt, also known as a bucket bolt or Norway bolt, is a threaded fastener with a large, thin, flat head and a partially threaded shank with a square neck. It was originally designed to fasten belts in elevator and conveyor systems, but its design allows it to fit flush and carry intense loads, making it suitable for various applications, including construction, woodworking, and other heavy-duty uses.
Low-Profile, Flat Head:
The head is designed to lie flat against the surface, providing a smooth and unobtrusive finish. This is ideal for preventing snags, catches, or wear patterns on materials that run over the bolt.
Excellent Load Distribution:
The large surface area of the head helps distribute the load evenly, which reduces the risk of the bolt pulling through thin or soft materials.
Secure, Non-Turning Fastening:
The square neck directly under the head lodges into the material it's fastened to, preventing the bolt from rotating when a nut is tightened.
Strength and Durability:
Elevator bolts are engineered for heavy-duty applications, offering the strength needed for demanding systems like conveyors and lifts.
Ease of Installation:
They are simple to install by threading through a pre-drilled hole and tightening a nut.
Technical Parameters
| Product name | Carbon Steel ASTM Flat Head Elevator Bolt |
| Brand Name | Donghuang |
| Color | Blue WHITE |
| Surface treatment | ZINC |
| Packing | Customers' Requirements |
| Type | ISO |
| Material | Steel |
| Certificate | ISO9001:2015 |
Conveyor Systems:
They securely hold the canvas or rubber belts of conveyor belts together, preventing the bolt head from snagging or damaging the materials being transported.
Lifts and Elevators:
The original use for these bolts was in traditional elevator systems, where the flat head design ensured smooth movement without snagging on anything.
Agriculture:
Commonly found in grain elevators to hold together bucket belts for transporting grains.
Vehicle and Construction:
Used for flooring in vehicles and in general construction, where a smooth, flush surface is needed.
Product Operate Guide
Selection:
Choosing the right elevator bolt (e.g., fanged, Easifit) and nut (hex nut, flange nut, nylock nut) based on the specific belt material and application requirements, such as temperature and vibration.
Installation:
Positioning the bolt head against the inner surface of the elevator belt with the nuts and washers on the interior side of the bucket.
Using specialized tools for certain bolt types to prevent rotation during tightening.
Ensuring the bolt head fits snugly just below the belt's surface.
Maintenance:
Performing periodic inspections to check for any loose or damaged bolts.
Re-tightening bolts after an initial run-in period of operation to ensure they remain secure.
Checking for wear, deterioration, and other potential issues that can affect the longevity and reliability of the system.
Safety:
Understanding that improperly secured bolts can lead to a disastrous failure of the bucket elevator system.
Product Video
FAQ
Q: What is an elevator bolt?
A: An elevator bolt is a type of fastener featuring a large, flat, domed head, a partially threaded shaft, and a square or fanged neck under the head. The large, flat head distributes weight evenly and prevents the bolt from pulling through the material. The square neck locks into the material to stop the bolt from spinning as the nut is tightened.
Q: Where are they used?
A: They are primarily used in bucket elevator systems and conveyor belts to secure buckets to the belt.
Q: How is it installed?
A: Positioning: Place the bolt through the elevator belt and bucket. The large head lies against the inside surface of the belt.
Tightening: Place washers and nuts on the inside of the bucket and tighten them.
Fit: The ideal installation sees the head fit snugly just below the surface of the belt.
Q: What is the maintenance for an elevator bolt?
A: Initial Run & Re-tightening:
After the initial installation, run the elevator for about four hours and then re-tighten the nuts to ensure there are no loose parts.
