Holo-krome 76580 Hex Socket Cap Screw M24 X 3.00 Alloy Steel

Product Description

The HOLO-KROME 76580 is a metric hex socket cap screw designed for high-strength mechanical assemblies requiring precise torque and reliable clamping force. Manufactured from alloy steel to material grade 12.9, this screw delivers tensile strength suited for demanding industrial and mechanical applications. The black oxide finish provides a degree of corrosion resistance and reduces light reflection in precision assemblies. The M24 x 3.00 thread size with a 220 mm length under head and partial threading configuration makes it a go-to fastener for through-bolt and threaded-insert applications where thread engagement depth and shank clearance both matter. Licensed mechanics, millwrights, and maintenance technicians are the primary installers.

This fastener is used in heavy machinery, structural mechanical joints, industrial equipment, and fabrication applications where metric high-strength cap screws are specified. The partially threaded shank allows controlled engagement in tapped holes or with a nut, making it appropriate for applications requiring the unthreaded shank to bear shear loads or align mating components. It is sold individually and suits both production assembly and MRO replacement scenarios.

Key Features

• Grade 12.9 alloy steel construction for high tensile and proof load capacity
• M24 x 3.00 metric thread with 220 mm length under head
• Partially threaded shank allows shear-load bearing and precise component alignment
• Black oxide coating for surface protection and reduced reflectivity
• Hex socket (internal hex) drive for high torque application with standard Allen or hex key tooling
• Meets ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 fastener standards

Compatibility

Designed as an OEM-style and MRO replacement metric hex socket cap screw conforming to DIN 912 and ISO 4762 standards, compatible with any tapped hole or fastener assembly specifying an M24 x 3.00 grade 12.9 socket head cap screw.

Installation Notes

Installation should be performed by a qualified mechanic or millwright using a calibrated torque wrench and the appropriate hex key or socket driver sized for an M24 socket head cap screw. Clean and inspect the tapped hole or mating nut threads before installation to ensure full and accurate thread engagement. Follow the equipment manufacturer's torque specifications for grade 12.9 fasteners, as over-torquing or under-torquing can compromise joint integrity. De-energize and lock out all equipment per applicable OSHA lockout/tagout procedures before servicing any fastener in a live mechanical assembly.