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Some Statistics About Us You Must Know
Choose the plan that suits you best.
18
+
YEARS OF EXPERIENCE
3000㎡+
FLOOR SPACE
160
+
MACHINERY EQUIPMENT
3500
+
SATISFIED CUSTOMERS
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Product Picture
-Head Type: Socket Head
-Drive Type:Hex drive
-Material:Stainless steel 304
-Surface: Passivated
-Thread metric:M2,M3,M4,M5,M6,M8,M12
-Thread inch:0-80,2-56,3-48,3-56,4-40,4-48,5-40,5-44,6-32,6-40,8-32,8-36,10-24,10-32,1/4-20,5/16-18
-RoHS Compliance:RoHS 3 (2015/863/EU) Compliant
-Standard met: ASTM A108,ISO 7379
Production Process
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
Quality Control Process:
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.
OEM/ODM Customization
1. Material Customization
Carbon steel, stainless steel (such as 304, 316), alloy steel, copper, aluminum, titanium, etc.
2. Customized Specifications and Dimensions
Screw diameter, length, and pitch can be customized upon request. We support standards such as GB, UNC/UNF, DIN, and BSW, as well as custom sizes.
3. Customized Surface Treatment
Galvanizing (white and colored), blackening, electrophoresis, Dacromet, nickel plating, chrome plating, and spray coating.
Enhanced rust resistance, aesthetics, and service life.
4. Customized Structure/Appearance
Customizable head shapes (round, flat, countersunk, hexagonal, and torx heads).
Optional thread types, holes, anti-theft features, and other functional designs are available.
5. Customized Packaging
Bulk, boxed, bagged, and custom labeling are available.
We support neutral packaging, customer-branded packaging, and standard foreign trade packaging.
6. Prototyping Service
We provide fast prototyping services, with mass production following sample confirmation.
7. Logo/Brand Customization (ODM)
We can imprint your logo or serial number on your product.
We provide one-stop ODM development services, providing comprehensive support from design to mass production.
FAQ
Q1: Can you provide a customized Socket Head Shoulder Screw?
A1: It can be made according to the drawings and specifications provided by customers.
Q2: I want to keep our design secret. Can we sign an NDA?
A2: Sure, we will not display any customer's design or show it to other people, we can sign an NDA.
Q3: What's your MOQ?
A3: For standard parts, 1000 pcs. Customized one, 10000 pcs.
Q4: How do you control the shoulder diameter tolerance if I need them very tight tolerance?
A4: We will do grounding to control the tolerance with +-0.001.
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