Holo-krome 76492 Hex Socket Cap Screw M20 X 2.50 Metric

Product Description

The HOLO-KROME 76492 is a metric hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and trade assembly work. Manufactured from alloy steel to a 12.9 material grade, this fastener delivers exceptional tensile strength for demanding bolted joints. The black oxide finish provides a degree of corrosion resistance and reduces light reflection on exposed hardware. With an M20 x 2.50 thread size and a 50 mm length under head, fully threaded along the entire shank, this screw is suited for through-bolt configurations and close-tolerance assemblies. Installation requires a hex socket drive tool.

This screw is commonly used in heavy equipment assembly, structural mechanical connections, hydraulic manifold mounting, and industrial machinery maintenance. The M20 size is a standard metric fastener used across a wide range of commercial and industrial applications. The 12.9 grade rating makes it appropriate for high-load connections where lower-grade hardware would be insufficient. Machinists, millwrights, and maintenance technicians regularly specify this fastener type for equipment builds and field repairs requiring metric hardware to DIN or ISO standards.

Key Features

• M20 x 2.50 metric thread size with 50 mm length under head
• Fully threaded shank for maximum thread engagement in through-bolt applications
• Alloy steel construction at 12.9 material grade for high tensile strength
• Black oxide finish for moderate corrosion resistance and reduced glare
• Hex socket drive for controlled torque application with standard Allen or socket tools
• Conforms to ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 standards

Compatibility

Designed as a standard metric hex socket cap screw conforming to DIN 912 and ISO 4762 specifications, suitable for use in any application requiring an M20 x 2.50 grade 12.9 fully threaded cap screw.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or maintenance technician using a properly sized hex socket driver or Allen key. Always verify thread engagement depth and mating thread condition before torquing. Do not mix metric and unified inch fasteners in the same assembly. Follow the equipment manufacturer torque specifications for M20 grade 12.9 hardware as provided in the applicable service documentation.