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A button head cap screw (BHCS) is a fastener with a low-profile, domed head ， using an internal hexagonal socket usually and tightened using an Allen key. Its rounded head offers a smooth, aesthetic finish, making it ideal for applications requiring a flush appearance and minimal protrusion.
Typically made from stainless steel, alloy steel, or titanium, BHCSs are used in machinery, electronics, and automotive industries for their balance of strength and style.
•Low-Profile Dome Head: The rounded, low-height head reduces snagging and enhances aesthetics.
•Hex Socket Drive: Allows higher torque application compared to Phillips or slotted drives, reducing cam-out risk.
•Material Versatility: Available in stainless steel (A2/A4), alloy steel (Grade 8.8/12.9), or titanium for corrosion resistance and strength.
•Standards Compliance: Conforms to ISO 7380 (metric) or ANSI/ASME B18.3 (inch) for reliable performance.
Button Head vs. Cap Screw: What’s the Difference?
•Button Head Cap Screw: Features a domed, low-profile head for aesthetic and space-constrained applications. Best for light to medium loads.
•Socket Head Cap Screw (SHCS): Has a cylindrical, taller head for higher torque and strength, suited for heavy-duty applications like structural components.
|
Feature |
Button Head Cap Screw |
Socket Head Cap Screw |
|
Head Shape |
Domed, low-profile |
Cylindrical, taller |
|
Strength |
Medium |
High |
|
Applications |
Electronics, furniture |
Heavy machinery, construction |
|
Aesthetics |
Sleek, flush |
Functional, prominent |
•Button Head: Lower profile, rounded top, ideal for visible surfaces like automotive interiors or electronics. Uses hex socket drives for precision.
•Pan Head: Taller, flatter top with rounded sides, better for high-stress applications. Typically uses Phillips or slotted drives.
|
Feature |
Button Head |
Pan Head |
|
Profile |
Low, sleek |
Taller, bulkier |
|
Drive Type |
Hex socket, Torx |
Phillips, slotted |
|
Use Case |
Aesthetics, tight spaces |
General-purpose, high stress |
|
Load Distribution |
Moderate |
High |
Button head cap screws are also known as:
•Socket Button Head Screw
•Dome Head Cap Screw
•Round Head Socket Screw
Button head cap screws excel in scenarios requiring both functionality and aesthetics:
•Machinery: Secures components in CNC machines and 3D printers where low clearance is critical.
•Electronics: Fastens casings in laptops and smartphones for a clean look.
•Automotive: Used in interior panels and engine compartments for vibration resistance and style.
•Furniture: Provides a polished finish in high-end cabinetry and fixtures.
Case Study: Custom M6 Button Head Cap Screws for a German Automotive Client
In 2024, a German automotive manufacturer approached Shi Shi Tong for a custom M6 button head cap screw solution. The client needed screws with enhanced vibration resistance for electric vehicle battery compartments, requiring a non-standard thread pitch and titanium material for lightweight durability. Our team designed a screw with a modified thread profile and applied a specialized anti-loosening coating. The result? A 30% reduction in assembly failures under high-vibration testing, meeting ISO 7380 standards.
This solution saved the client 15% in production costs compared to off-the-shelf fasteners.
Top 5 Benefits of Button Head Cap Screws
1.Aesthetic Appeal: Smooth, rounded heads enhance visual appeal in visible applications.
2.Low Profile: Reduces snagging risks in tight spaces or moving parts.
3.Corrosion Resistance: Stainless steel and titanium options ensure durability in harsh environments.
4.High Torque Capability: Hex socket drives allow secure fastening without stripping.
5.Versatility: Suitable for diverse industries, from electronics to aerospace.
Installation Tips for Button Head Cap Screws
•Use the Correct Allen Key: Match the hex key size (e.g., 3mm for M5 screws) to avoid stripping.
•Control Torque: Use a torque wrench to prevent over-tightening, especially with softer materials.
•Check Surface Compatibility: Ensure the mating surface is flat to maximize load distribution.
•Inspect Regularly: Monitor for wear or corrosion, particularly in outdoor applications.
Why Choose Shi Shi Tong for Custom Button Head Cap Screws?
•Shi Shi Tong specializes in non-standard, custom screws tailored to your exact specifications.
•Unlike wholesalers, we focus on bespoke solutions for manufacturers and factories, ensuring precision and durability.
•Whether you need a 1/4-20 button head cap screw or a unique M6 design, our engineers collaborate with you to deliver fasteners that meet stringent standards like ISO 7380.
FAQ
1.What is the abbreviation for button head cap screw?
The abbreviation is BHCS (Button Head Cap Screw).
2.What is a 1/4-20 button head cap screw?
A 1/4-20 BHCS has a 1/4-inch diameter with 20 threads per inch, commonly used in machinery and automotive applications for secure, low-profile fastening.
3.Can button head cap screws be used in high-vibration environments?
Yes, with proper material selection (e.g., titanium) and anti-loosening coatings, BHCSs are effective in high-vibration settings like automotive or aerospace.
4.How do I choose between button head and pan head screws?
Choose button head for aesthetics and tight spaces; opt for pan head for higher load distribution and general-purpose use.
Conclusion
Button head cap screws offer a unique blend of style, strength, and versatility, making them a top choice for manufacturers seeking reliable fasteners. For custom solutions tailored to your needs, Shi Shi Tong delivers precision-engineered screws that enhance performance and durability. Contact us for your next project.
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Skype: kalyn qin M: +86 18818786322 Tel: +86 0755-27322278 Add: Building 9, Tantou First Industrial Zone, Songgang Street, Baoan, Shenzhen 518105, Guangdong Province, China |
5 月-27-2025
Joan
+86 13143444311
sst@szsst88.com
