Dongguan Situo Hardware Products Technology Co., Ltd
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Brass Spring Cap CNC Screw with High Corrosion Resistance and Precision CNC Machining for Elastic Spring Loaded Fastening
  • Brass Spring Cap CNC Screw with High Corrosion Resistance and Precision CNC Machining for Elastic Spring Loaded Fastening
  • Brass Spring Cap CNC Screw with High Corrosion Resistance and Precision CNC Machining for Elastic Spring Loaded Fastening
  • Brass Spring Cap CNC Screw with High Corrosion Resistance and Precision CNC Machining for Elastic Spring Loaded Fastening
  • Brass Spring Cap CNC Screw with High Corrosion Resistance and Precision CNC Machining for Elastic Spring Loaded Fastening

Brass Spring Cap CNC Screw with High Corrosion Resistance and Precision CNC Machining for Elastic Spring Loaded Fastening

Place of Origin GuangDong Dongguan
Brand Name SITUO
Certification ISO9001 & TS16949
Model Number ST-300051
Product Details
Payment:
TT.paypal.PP.Trade Assurance
Color:
Customized
Lengthrange:
5mm To 100mm
Length:
78MM
Specifications:
M0.8-M12
Quality Control:
Final Inspectoin
Diameterrange:
M1 To M20
Threadtype:
Metric / UNC / UNF
Surface Treatment:
Passivation
Type:
Milling, Turning
Precision:
Min0.01
Packing:
Customized Standard
Category:
Screws
Sample Period:
3-5 Days
Processing Technology:
Cold Heading
Maximum Outer Diameter:
10
Our Service:
One-step Service
Product Name:
Hexagon Screw
Specification:
Customized
Corrosion Resistance:
High
Drawing Format:
2D/(PDF/CAD/DWG/DXF)3D(IGES/STEP/VDA)
Tolerance:
±0.01mm
Head Shape:
Circle Head Hexagon
Grade:
12.9
Size:
6.0MM
Material:
Copper
Surface Treatment:
Customer's Request
Highlight: 

High Corrosion Resistance Brass Spring Cap Screw

,

Precision CNC Machining CNC Screw

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Elastic Spring Loaded Design Precision Fastener

Payment & Shipping Terms
Minimum Order Quantity
1PCS
Price
5-10 USD per item
Packaging Details
Communication
Delivery Time
Communication
Payment Terms
T/T
Supply Ability
10000PCS per day
Product Description
Brass Spring Cap CNC Screw
Precision Machined Brass Spring Loaded Cap Screw, Non-standard Custom Hardware Fastener
Product Overview
Brass Spring Cap CNC Screw is a high-end precision elastic hardware fastener integrating brass body and built-in spring structure. Different from ordinary fixed screws, this spring loaded cap screw adopts one-piece CNC precision turning molding, with integrated spring telescopic function, realizing flexible telescopic pressing, buffer positioning and elastic locking assembly.
Made of high-quality brass material, the product features excellent electrical conductivity, anti-corrosion, oxidation resistance and non-magnetic performance. The smooth burr-free surface and precise tolerance ensure stable elastic compression and reset effect during repeated use. It effectively solves rigid extrusion, loose contact and assembly gap problems of precision equipment connection.
Widely used in electronic instruments, communication equipment, electrical assemblies and precision mechanical adjustment structures. We provide full non-standard custom machining for screw size, cap shape, spring stroke and structural appearance.
Key Features
  • Elastic Spring Loaded Design: Built-in spring telescopic mechanism provides automatic buffering and elastic pressing, avoiding rigid collision and assembly pressure damage for precision parts.
  • Premium Brass Material Performance: High purity brass raw material delivers outstanding conductivity, anti-oxidation and anti-corrosion properties, suitable for electrical and precision instrument environments.
  • Precision CNC Machining: Strict micron-level tolerance control, smooth cap surface and accurate thread, ensuring flexible telescopic movement without jamming.
  • Stable Reset & Locking Effect: Uniform spring force ensures consistent compression and reset, maintaining stable contact and positioning after long-term repeated assembly.
  • Vibration Resistance & Anti-loose: Elastic buffer structure absorbs equipment vibration, effectively preventing loosening and poor contact caused by mechanical oscillation.
  • Full Non-standard Customization: Support custom diameter, length, spring stroke, cap appearance and special-shaped structure according to drawings and samples.
Product Specifications
  • Product Name: Brass Spring Loaded Cap CNC Screw
  • Material: High Quality Brass
  • Process: CNC Precision Turning, Polishing, Spring Assembly
  • Structure: Brass Cap Body + Built-in Elastic Spring
  • Performance: Conductive, Anti-corrosion, Elastic Telescopic, Vibration-resistant, Anti-loose
  • Function: Elastic pressing, buffer positioning, conductive connection, gap compensation
  • Custom Service: Full non-standard size and structural custom machining
  • Application: Precision instruments, electronic equipment, electrical components, communication devices
Applications
Brass spring cap CNC screws are widely applied in precision electronic instruments, electrical control equipment, communication terminal devices, automation precision machinery, medical instruments and household electrical appliances. They are core elastic connecting fasteners for precision positioning, conductive contact and buffer anti-vibration assembly.
Frequently Asked Questions
Q: What is a brass spring cap screw used for?
A: It is a precision spring-loaded fastener, mainly used for elastic pressing, gap compensation and stable conductive connection of precision equipment, solving poor contact caused by vibration and assembly errors.
Q: What are the advantages of brass spring loaded screws?
A: Brass has excellent conductivity and corrosion resistance. The built-in spring structure provides flexible buffer assembly, better stability and durability than ordinary rigid screws.
Q: Can the spring stroke and size be customized?
A: Yes, we support full customization of screw length, diameter, spring compression stroke and cap shape to match different precision assembly requirements.
Q: Is brass material suitable for electronic equipment?
A: Absolutely. Brass features good electrical conductivity, non-magnetic and anti-oxidation properties, which is the ideal material for precision electronic and electrical hardware accessories.
Manufacturing Capabilities
We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines). Our maximum processing outer diameter is 60mm, and the minimum control tolerance is 0.001mm.
Equipment Portfolio
Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment.
Company Scale
300 employees including 20 technicians, 10 engineers, and 15 quality control personnel with over 300 pieces of equipment.
Quality Certifications
8S management, ISO9001 and TS16949 automotive certifications.
Notable Customers
Foxconn, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.
Our Capacity
Main Products Stainless steel screws, carbon steel screws, pins, rivets, nuts, eccentric nails, embedded parts, and other fasteners
Business Type Factory / Manufacturer
Services CNC Machining, Turning and Milling, CNC Turning, Cold heading, Stamping, Assembly Service
Materials Aluminum: AL 6061-T6, 6063, 7075-T etc
Stainless steel: 303,304,304L,316L,316F,630,410,420,430, etc
Steel: 4140, Q235, Q345B,20#,45# 1215,12L14,1144,1006,1008,1010,1015,1018,10B21,1035,1065 etc.
Alloy steel: 5140,4135,4140,3435,5120,415,435,440 etc
Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc
Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90),C27000,C51900,C11000,C3604,H62,H65 etc
Copper, bronze, Magnesium alloy, Delrin, POM, Acrylic, PC, etc.
Finishes Sandblasting, Anodize color, Blackening, Zinc/Nickel Plating, Polish, Powder coating, Passivation PVD, Titanium Plating, Electrogalvanizing, electroplating chromium, electrophoresis, QPQ, Electro Polishing, Chrome Plating, Knurl, Laser etch Logo, etc.
Drawing Formats STEP, STP, GIS, CAD, PDF, DWG, DXF etc or samples
Tolerance +/-0.01mm ~ +/-0.05mm
Surface Roughness Ra 0.1~3.2
Inspection Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier, CMM, Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge
Product Images
CNC screw close-up view showing precision machining M4 flat head quick release valve screw Straight tooth CNC screw profile Precision screw manufacturing quality CNC screw application in automation Industrial screw close-up detail Precision screw manufacturing process CNC screw quality inspection Automation industry screw application High-precision screw manufacturing CNC screw technical specifications Industrial fastener quality control

Ratings & Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

D
David
Australia Oct 9.2026
Really happy with the manufacturing team. They can scale up production fast when we need more stock. High quality standard as we required. Sales professional, clear quotation. Package safe for sea freight.
L
Lucas
Germany Oct 8.2026
sine avec une bonne capacité de production. La qualité des produits est constante. Notre commercial est très compétent et réactif. L’emballage est solide, rien n’est cassé à l’arrivée.
A
atwa
Germany Sep 30.2026
The surface of the dark coating is done very well, with stable quality. The moment I saw the sample, I thought the factory had a good sense of quality control. I hope to have more cooperation with them.

Contact Us at Any Time

13925509630
No. 9, Shi bi One Alley, Zhangmutou Town, Dongguan City, Guangdong Province
Send your inquiry directly to us