Ultimate 12.9 Grade Strength: Constructed from highest-grade 12.9 alloy steel, these screws deliver maximum tensile strength and shear resistance, engineered for critical automotive, machinery, and structural applications where failure is not an option. Enhanced 55mm Grip Length: The extended 55mm fully threaded design provides deeper penetration and superior holding power for thick materials, making it ideal for heavy-duty fabrication, industrial brackets, and machinery assembly. Industrial Black Oxide Protection: Features a durable black oxide finish that enhances corrosion resistance and provides a tough, wear-resistant surface capable of withstanding harsh workshop environments and chemical exposure. Stripping-Resistant 5mm Hex Drive: Precision-machined 5mm internal hex socket ensures secure tool engagement and allows for high-torque installation with standard Allen keys, preventing cam-out and head damage. Optimized 20-Piece Quantity: This practical 20-count package offers the perfect balance for professional projects, providing sufficient quantity for multiple installations while maintaining the highest quality standards. Demand exceptional performance with these M6 x 55mm Socket Head Cap Screws, engineered to meet the most rigorous industrial standards.
This 20-piece set combines ultra-high 12.9 grade alloy steel with a protective black oxide finish, delivering unmatched reliability for critical applications in manufacturing, automotive, and construction.
These screws represent the pinnacle of fastener technology, featuring 12.9 grade alloy steel that ensures maximum resistance to shock loads, vibration, and extreme forces.
The robust construction makes them ideal for engine components, heavy machinery, structural frames, and any application where joint integrity is non-negotiable.
The 55mm length offers versatile application possibilities, providing ample thread engagement for securing extra-thick materials, multi-layer assemblies, and heavy-duty brackets.
The fully threaded design guarantees consistent clamping force and superior pull-out strength across the entire fastener length, ensuring reliable performance under demanding conditions.
Finished with industrial-grade black oxide treatment, these screws gain enhanced corrosion protection and a durable, low-glare surface that maintains its professional appearance through rigorous use.
The precision-formed 5mm hex socket delivers reliable tool engagement, allowing for full torque application without compromising the screw integrity.