Description

Monster Overview:
Power through the toughest builds with M12 Button Head Socket Cap Screws from Monster Bolts. Engineered from Class 12.9 black alloy steel and finished in thermal black oxide, these heavy-duty fasteners provide outstanding tensile strength and a clean, low-glare appearance. The button head profile offers a smooth, rounded top with broad load distribution—ideal for structural assemblies, fixtures, and machine applications where both strength and appearance matter.
Quality & Supply: Each lot meets or exceeds Monster Bolts’ demanding quality standards for consistency and performance. Keep your production lines moving with fast U.S. fulfillment and dependable bulk supply.
Monster Features:
- High Strength: Class 12.9 alloy steel delivers maximum tensile and shear performance.
 - Button Head Design: Wide bearing surface minimizes surface damage and provides clean, low-profile appearance.
 - Hex Drive: 8 mm internal hex for strong torque transfer and precise engagement.
 - Thermal Black Oxide: Low-gloss oil-sealed finish offers mild corrosion resistance; fully RoHS compliant.
 - Standards: Produced to DIN 9427 / ISO 7380 button head specifications.
 
Monster Specifications
| Feature | Details | 
|---|---|
| Diameter / Thread | M12-1.75 (coarse, standard metric) | 
| Available Lengths | Select length above (multiple sizes stocked) | 
| Head / Drive | Button Head Socket — Hex 8 mm | 
| Material / Grade | Black Alloy Steel, Class 12.9 | 
| Finish | Thermal Black Oxide (light oil; RoHS compliant) | 
| System of Measurement | Metric | 
| Standards | DIN 9427 / ISO 7380 | 
More Monster Bolts:
• M8 Hex Keys
• Matching M12 Nuts & Washers
• All Bulk Metric Socket Screws
Order Today and Experience the Monster Bolts Difference
Buy with confidence—every Monster Bolts order is backed by responsive support and fast U.S. fulfillment. MTRs available on request for bulk cartons.
Note: Bulk shipping times may vary slightly based on inventory location and order size. Most orders ship quickly; smaller bulk quantities may take a few extra days to process.












