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DTGN Button Head Socket Cap Screws Review: Durable hex-socket fasteners for bikes and cars

DTGN M6-1x50mm Button Head Socket Cap Screws - 20Pack - Good for Road Bicycle, Mountain Bike, Auto, Motorcycle - Carbon Steel Black Oxide - Hex Drive Fasteners
4.6
[20-Piece M6 Set]  Includes 20 M6 coarse-thread button head socket screws, ideal for multiple projects.
[Precise Dimensions Specified]  M6 thread, 1.0mm pitch, 50mm length, 10.5mm head diameter, 3.3mm head thickness.
[Durable Carbon Steel]  Carbon steel with black oxide finish resists corrosion and deformation for extended service life.
[High-Torque Hex Design]  Inner hex drive and dome head deliver superior torque, clamping force, and high tensile strength.
[Versatile Industrial Applications]  Ideal for cars, bicycles, communication equipment, and ship assembly; use with hex wrench and retaining washer.
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Fasteners for repair and assembly that deliver secure clamping and corrosion resistance. DTGN Button Head Socket Cap Screws suit cyclists, mechanics and hobbyists who need dependable replacement fasteners for routine maintenance. Are these M6 hex-socket screws the right choice for workshop and on-the-road repairs?

⚡ At a Glance
  • Holding Strength: Coarse M6 x 1mm thread combined with dome head and inner hex drive gives higher torque and strong clamping force
  • Best for: Mechanics, cyclists and DIYers needing reliable replacement fasteners for bicycles, motorcycles and cars
  • Not ideal for: Applications that require stainless steel fasteners for constant salt-water exposure

M6 coarse-thread button head socket cap screws made from carbon steel with black oxide treatment. Inner hex drive and dome head increase torque and bearing surface for secure assemblies.


Secure clamping – thanks to inner hex drive and dome head

Inner hex drive allows higher torque transfer from wrench to screw while the dome head provides a wider bearing surface that spreads load across the joint. Coarse M6 x 1mm thread grips into mating parts for firm retention.

Stronger clamping reduces loosening under vibration, ideal for bike and engine assemblies where secure joints matter.

Durable finish – with carbon steel construction and black oxide treatment

Carbon steel gives tensile strength suitable for common mechanical uses, while black oxide adds a darker surface finish that slows corrosion compared with bare steel. The treatment also improves appearance and reduces friction during installation.

Longer service life and a more resilient exterior help the screws withstand routine wear in workshops and outdoor use.

Ready for replacements – thanks to standard M6 sizing and 20-piece pack

Thread diameter M6, pitch 1mm and a 50mm length match standard coarse-thread applications, supplied in a set of 20 for multiple repairs or projects. Head diameter and hexagon width conform to common tool sizes.

Bulk supply simplifies maintenance tasks and makes it easy to replace worn fasteners without sourcing individual parts.

✨ The 4 Key Reasons for DTGN Button Head Socket Cap Screws
  1. Carbon steel construction – Greater tensile strength for mechanical assemblies
  2. Black oxide finish – Improved surface protection against mild corrosion
  3. M6 x 1mm thread – Fits standard coarse-thread holes commonly found on bikes and vehicles
  4. 20-piece pack – Ready supply for multiple repairs or small projects
📋 Technical Details at a Glance
  • Size/Thread: M6 x 1mm
  • Length: 50mm (1.97")
  • Head diameter: 10.5mm (0.41")
  • Head thickness: 3.3mm (0.13")
  • Hexagon width: 4mm (0.16")
❓ Frequently Asked Questions

Q: What are the exact thread and length specifications?

A: The screws are M6 with a 1mm thread pitch and 50mm length, head diameter 10.5mm and head thickness 3.3mm.

Q: What material and finish do the screws use?

A: Made from carbon steel with a black oxide treatment for improved surface resilience and appearance.

Q: What tools are needed to install them and are washers recommended?

A: A hex wrench is required to tighten or loosen the screws and a retaining washer is recommended to lock the hex drive securely.

🏆 Our Verdict

These screws are suitable for mechanics, cyclists and DIYers who need dependable replacement fasteners for bikes, motorcycles and cars. Carbon steel construction with a black oxide finish and an inner hex drive deliver strong clamping and better wear resistance than untreated steel. While more robust than basic fasteners, the durable construction makes the set a practical long-term choice for regular maintenance.