↵Bumper Screw
Bumper Screw
ZEYAO is a professional fastener manufacturer with 19 years of R&D and production experience. We specialize in providing high-quality fastening solutions for automotive, construction, and industrial use. Our Bumper Screws are designed to offer strong, rust-resistant, and stable performance.
Product Picture
Product Overview
The front end of the bolt can be fitted with either polyurethane or resin as the head stopper, providing cushioning, shock absorption, and protection for the workpiece against damage.
Each locking bolt comes with a matching nut, ensuring easy tightening and removal. This allows for convenient replacement whenever the stopper head shows signs of wear.
Features of Bumper Screw
Feature 1: When paired with positioning stoppers, it forms a stop block that can be used for positioning, anti-collision, and other functions in equipment.
Feature 2: The head stopper offers a variety of materials, with the additional option of special low-rebound polyurethane.
Feature 3: The non-metal head stopper can mitigate impact noise between metal components.
Feature 4: A wide range of bolt specifications are available to accommodate different positioning accuracy requirements.
Feature 5: Bolts with surface treatment options are available.
Feature 6: Introduction to low-rebound polyurethane characteristics.
Low-rebound polyurethane offers superior impact absorption and also performs well in terms of permanent compression rate.
Production Process
As a fastener manufacturer with 19 years of experience, Zeyao boasts a comprehensive production system, ensuring consistent quality and on-time delivery for every fastener.
1. Raw Material
We purchase high-quality metal wire and strictly sort it into batches upon arrival, preparing it for subsequent processing.
2. Cold Heading
A cold heading machine processes the raw material into the basic shape of the fastener.
3. Thread Rolling
Next, threading, also known as threading, is performed to ensure the screw or bolt has a standard, clear profile.
4. Automatic Lathe Processing
Fully automatic lathes are used to further refine parts, including chamfering, turning, and slotting, to enhance dimensional accuracy.
5. Benchtop and CNC Lathe Finishing
For complex or customized fasteners, we use benchtop lathes and CNC machines for further processing to ensure they meet specific customer requirements.
6. Quality Inspection
All products undergo rigorous manual and automated inspections to eliminate defective items and ensure that every shipment meets customer standards.
7. Functional Testing
Some products undergo specialized testing equipment to verify key indicators such as hardness, thread accuracy, and external dimensions.
8. Packaging and Shipping
Products are sorted, packaged, labeled, and boxed automatically or manually, and then neatly stacked in the warehouse for shipment.
Quality Control
Vernier Caliper/Micrometer
Used to measure the outer diameter, length, thickness, and other dimensions of screws, nuts, and other parts.
Torque Meter
Checks whether the torque applied during tightening meets standards, ensuring safe and reliable use.
Depth Micrometer
Used to measure internal dimensions such as hole depth and groove depth to ensure precise assembly.
Plug Gauge
Checks the dimensions of threaded holes or fastener bores to ensure insertion and a tight fit.
Thread Gauge
Used to check thread accuracy to prevent problems such as stripping and sticking.
Ring Gauge
Tests the external thread dimensions of screws to ensure a proper fit with nuts.
Hardness Tester
Measures the hardness of fastener materials to determine whether they meet applicable standards.
Projector
Magnifies the outline of a product to check for any deviations or minor defects.
Salt Spray Tester
Simulates product use in humid or corrosive environments to test its rust and corrosion resistance.
Over 19 years of experience in fastener R&D and production
Advanced production and testing equipment
Strict quality control system
OEM/ODM global customization capabilities
Stable supply and on-time delivery
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