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Fasteners designed for dependable clamping and corrosion resistance across bikes, cars and marine fittings. Confidence when tightening critical joints comes from 304 stainless steel construction and a dome head, so are DTGN Button Head Socket Cap Screws the right choice for routine repairs?
⚡ At a Glance
- • Fastening Strength: Dome head and inner hex drive deliver high tensile clamping and wide bearing surface
- • Best for: Mechanics and DIY cyclists needing reliable replacement fasteners for bikes and vehicles
- • Not ideal for: Applications requiring countersunk heads or non-hex drive screws
M8 coarse-thread button head socket cap screws made from 304 stainless steel. Inner hex drive and dome head increase torque tolerance and bearing surface.
Longer service life – thanks to 304 stainless steel with whitewashed treatment
304 stainless steel resists corrosion and the whitewashed finish improves surface protection and appearance. The material and treatment reduce deformation and slow down corrosion compared with plain finishes.
Durable construction keeps fasteners reliable in wet or exposed environments, reducing the need for frequent replacements.
Secure clamping under torque – with inner hex drive and dome head
Inner hex (5mm hexagon width) accepts a hex wrench for concentrated torque, while the dome head offers a wider bearing surface and high tensile strength. Coarse M8 thread mates with standard M8 fittings.
Higher torque and broader load distribution produce tighter, more secure joints for structural repairs and vehicle fittings.
Straightforward replacement and fitment – with M8 coarse thread, 45mm length
Thread diameter M8 with 1.25mm pitch and a thread length of 45mm suits many common repair points. Head diameter 14mm and head thickness 4.4mm match typical button head clearances.
Standard sizing makes these screws practical spares for road bicycles, mountain bikes, cars and communications hardware.
✨ The 4 Key Reasons for DTGN Button Head Socket Cap Screws
- 304 stainless steel – significantly reduces corrosion risk in wet environments and keeps fasteners serviceable longer
- Button dome head – spreads load over a wider bearing surface, reducing pull-through risk
- M8 coarse thread, 45mm – fits common repair points and replaces worn fasteners easily
- Inner hex (5mm) drive – allows higher torque using standard hex wrenches for secure clamping
📋 Technical Details at a Glance
- Category: Fasteners
- Material: 304 Stainless Steel
- Finish: Whitewashed treatment
- Thread diameter: M8
- Thread pitch: 1.25mm
❓ Frequently Asked Questions
Q: Can these screws be used on bicycles?
A: Yes, coarse M8 thread and 45mm length make them suitable as replacement fasteners for road and mountain bicycles, as stated in the product description.
Q: What hex wrench size is needed to tighten them?
A: A 5mm hex wrench matches the inner hex drive (hexagon width 5mm) specified for the screws.
Q: Are the screws corrosion-resistant for outdoor use?
A: Constructed from 304 stainless steel with a whitewashed finish, the screws are designed to resist corrosion and offer a longer service life than untreated finishes.
🏆 Our Verdict
Ideal for mechanics, cyclists and DIYers needing reliable M8 replacements, these fasteners combine durable 304 stainless construction with a dome head and inner hex drive for strong clamping. The combination of corrosion-resistant material and a wider bearing surface is the standout benefit for routine repairs. Durable build and standard sizing deliver sensible long-term value for maintenance and replacements.
