Holo-krome 76658 Hex Socket Cap Screw M2.5 X 0.45 8mm

Product Description

The HOLO-KROME 76658 is a metric hex socket cap screw designed for precision fastening applications requiring high tensile strength and corrosion resistance. Sized at M2.5 x 0.45 with an 8 mm length under head, this screw is fully threaded and manufactured from alloy steel to Material Grade 12.9, the highest standard for socket cap screws. A black oxide finish provides a base level of corrosion protection and reduces light reflection. It is installed using a hex (Allen) key drive and conforms to ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 standards. Machinists, maintenance technicians, and mechanical assembly professionals use this fastener in tight-clearance assemblies where a flush or recessed head profile is required.

This screw is suited for precision mechanical assemblies, tooling fixtures, machine components, and equipment where a compact, high-strength metric fastener is needed. Its fully threaded shank provides maximum thread engagement across the full grip length, making it appropriate for thin-material applications and close-tolerance threaded inserts. The M2.5 thread size is commonly found in small mechanical devices, instrumentation, and light industrial equipment.

Key Features

• Material Grade 12.9 alloy steel for high tensile and proof load strength
• Fully threaded shank maximizes thread engagement across the entire length
• Black oxide finish provides mild corrosion resistance and low-reflectance appearance
• Hex socket drive allows installation in recessed or tight-clearance locations
• Conforms to ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 standards
• UNSPSC Code 31161501 for procurement and catalog classification

Compatibility

Designed as a standard M2.5 x 0.45 metric hex socket cap screw per DIN 912 and ISO 4762, compatible with any M2.5-threaded hole or insert meeting the same pitch specification.

Installation Notes

Installation should be performed by a qualified machinist or mechanical technician using a calibrated hex key or socket driver sized for the M2.5 drive. Verify thread pitch and hole depth before installation to avoid cross-threading or bottoming out. Apply thread-locking compound or specified preload torque per the equipment manufacturer's assembly documentation. Grade 12.9 fasteners should not be substituted with lower-grade hardware in structural or load-bearing joints.