Value Collection C90488 Hex Head Cap Screw M20 X 2.50

Product Description

The VALUE COLLECTION C90488 is a metric hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Manufactured from Grade 10.9 steel with a zinc-plated finish for corrosion resistance, this fastener meets DIN 931 and ISO 4014 standards for partially threaded hex bolts. The M20 x 2.50 thread size and 130 mm length under head make it well suited for heavy-duty bolted connections where clamping force and shear resistance are critical. It is installed by machinists, millwrights, and maintenance technicians across a wide range of industrial settings.

This screw is used in applications requiring a metric partially threaded fastener with a large bearing surface and high tensile strength. Grade 10.9 indicates a minimum tensile strength of 1040 MPa, placing it in the high-strength category appropriate for machinery frames, structural steel connections, and heavy equipment assembly. The 30 mm hex drive allows use with standard metric wrenches and impact tooling. It is sold individually and suits low-quantity replacement or prototype work as well as production fastening tasks.

Key Features

• M20 x 2.50 metric thread with 130 mm length under head for deep clamping reach
• Grade 10.9 steel construction for high tensile and proof load strength
• Zinc-plated finish provides baseline corrosion protection in dry and mildly humid environments
• Partially threaded shank per DIN 931 and ISO 4014 standards
• 30 mm hex size compatible with standard metric wrenches and impact sockets

Compatibility

Designed as a standard metric hex head cap screw per DIN 931 and ISO 4014, compatible with any M20 x 2.50 threaded hole or nut requiring a partially threaded Grade 10.9 fastener.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 30 mm metric wrench or impact socket. Always verify that the mating threaded component matches the M20 x 2.50 thread pitch before installation to avoid cross-threading. Torque to the value specified by the equipment manufacturer for Grade 10.9 M20 fasteners. Do not reuse fasteners that show signs of thread damage, stretching, or corrosion.