Value Collection HC1020070-025BX M20 Hex Cap Screw

Product Description

The VALUE COLLECTION HC1020070-025BX is a metric hex head cap screw sized M20 x 2.50 with a 70 mm length under the head. Built from Grade 10.9 steel with a black oxide finish, this fastener delivers high tensile strength suitable for demanding mechanical and structural assemblies. The partial threading configuration conforms to DIN 931, making it a standard choice for bolted connections where an unthreaded shank is required for shear-load applications. Machinists, millwrights, and maintenance technicians work with this fastener in both fabrication and field service environments.

This cap screw is suited for metric bolted assemblies in industrial machinery, structural steel fabrication, heavy equipment maintenance, and general mechanical construction. The M20 x 2.50 thread pitch is a coarse metric standard widely used across European and global equipment platforms. The 30 mm hex drive size accommodates standard metric wrenches and impact sockets. The black oxide finish offers mild corrosion resistance and reduces surface reflectivity in low-clearance or precision assemblies.

Key Features

• Grade 10.9 steel construction provides high tensile and proof load ratings for heavy-duty fastening
• Partial threading per DIN 931 allows unthreaded shank to bear shear loads
• M20 x 2.50 coarse metric thread pitch for broad compatibility with standard metric hardware
• Black oxide finish for mild corrosion resistance and reduced glare
• 30 mm hex drive size fits standard metric wrenches and impact sockets
• 70 mm length under head suits medium-to-deep bolted joint applications

Compatibility

Designed for use in any M20 x 2.50 metric threaded application requiring a partially threaded hex head cap screw per DIN 931. Compatible with standard metric M20 nuts and washers.

Installation Notes

Installation should be performed by qualified machinists, millwrights, or maintenance technicians familiar with metric fastener standards. Always verify that mating threads are clean, undamaged, and correctly sized before installation. Torque to the value specified by the equipment manufacturer for Grade 10.9 M20 fasteners using a calibrated torque wrench. De-energize and lock out any equipment before servicing bolted assemblies on powered machinery.