Security Bolts and Nuts: Tamper-Proof Fasteners for Critical Infrastructure

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Security Bolts and Nuts – Tamper-Proof Fastening Solutions with Anti-Theft Heads & Locking Mechanisms​

Security Bolts and Nuts – Tamper-Proof Fastening Solutions with Anti-Theft Heads & Locking Mechanisms​

Discover ​​security bolts and nuts​​ designed to prevent unauthorized removal—​​tamper-proof fasteners with security heads, locking nuts, and anti-theft designs​​ for construction, infrastructure, and critical infrastructure. Durable, weather-resistant, and engineered for maximum security.
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Advantages of Security Bolts and Nuts

Full-Process Service Guarantee

Full-process service to ensure a pleasant cooperation experience. ​

Customized Value-Added Services

Joint research and development to meet the needs of all stages.

Global Market Layout

Exported to over 40 countries, international cooperation ensures fulfillment. ​

In-Depth Application Across All Industries

Serving renowned enterprises and covering multiple high-precision fields.

Industrial Security Bolts and Nuts - Locking Fasteners for Machinery & Critical Infrastructure

M3 M4 M5 M6 Stainless Steel 304 Anti-theft Screw Torx Socket Flat Countersunk Security Torx Screw With Pin VIEW DETAILS

M3 M4 M5 M6 Stainless Steel 304 Anti-theft Screw Torx Socket Flat Countersunk Security Torx Screw With Pin

Manufacturers Stainless Steel Shoulder Bolts Precision Socket Step Screws VIEW DETAILS

Manufacturers Stainless Steel Shoulder Bolts Precision Socket Step Screws

Torx M2.63 Thread Forming Screw Safety Anti-theft bolts tamper proof Tox plum Flute Pan Head Flat Tail Screw with Post VIEW DETAILS

Torx M2.63 Thread Forming Screw Safety Anti-theft bolts tamper proof Tox plum Flute Pan Head Flat Tail Screw with Post

Customized Stainless Steel Stud Bolt Welding M4 M5 M6 Stainless Steel CD Weld Stud Screws Welding Stud Bolts VIEW DETAILS

Customized Stainless Steel Stud Bolt Welding M4 M5 M6 Stainless Steel CD Weld Stud Screws Welding Stud Bolts

#
Process Name
Checking Items
Detection frequency
Inspection Tools/Equipments
1
IQC
Check raw material: Dimension, Ingredient, RoHS
Caliper, Micrometer, XRF spectrometer
2


Heading
Outward appearance, Dimension
First parts inspection: 5pcs each time
Regular inspection: Dimension -- 10pcs/2hours; Outward appearance -- 100pcs/2hours
Caliper, Micrometer, Projector, Visual
3


Threading
Outward appearance, Dimension, Thread
First parts inspection: 5pcs each time
Regular inspection: Dimension -- 10pcs/2hours; Outward appearance -- 100pcs/2hours
Caliper, Micrometer, Projector, Visual, Ring gauge
4
Heat treatment
Hardness, Torque
10pcs each time
Hardness Tester
5
Plating
Outward appearance, Dimension, Function
MIL-STD-105E Normal and strict single sampling plan
Caliper, Micrometer, Projector, Ring gauge
6
Full Inspection
Outward appearance, Dimension, Function
Roller machine, CCD, Manual
7
Packing&Shipment
Packing, Labels, Quantity, Reports
 plan
Caliper, Micrometer, Projector, Visual, Ring gauge

FAQ

What is your terms of payment ?

For the first cooperation, we can do 20- 30% deposit in advance by T/T, Paypal,Western Union,Money gram and Check in cash, the balance paid against the copy of waybill or B/L.
Yes, if we had stock the available goods or have available toolings, we could offer the sample for free charge within 3 days ,but do not pay the cost of freight.
Generally it is 3-5 working days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
For the samples shipment, we use DHL,Fedex,TNT,UPS,Post and other courier for samples shipment.

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What Our Clients Are Saying

James R.
James R.

We use these on all our client's fence and gate projects now. The tamper-proof design gives everyone peace of mind without sacrificing durability.

Alex K.
Alex K.

Installing these on my kids' battery-operated toys was a game-changer. No more dead devices from loose batteries or little hands taking them apart!

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Why Choose Us

Why Choose Us

Dongguan Yuhuang Electronic Technology Co., Ltd. is mainly committed to the research and development and customization of non-standard hardware components, as well as the production of various precision fasteners such as GB, ANSI, DIN, JIS, ISO, etc. It is a large and medium-sized enterprise that integrates production, research and development, sales, and service. The company currently has over 100 employees, including 25 with more than 10 years of service experience, including senior engineers, core technical personnel, sales representatives, etc. The company has established a comprehensive ERP management system and has been awarded the title of "High tech Enterprise". It has passed ISO9001, ISO14001, and IATF16949 certifications, and all products comply with REACH and ROSH standards.

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