Value Collection 815259PR Hex Head Cap Screw M20 X 2.50

Product Description

The VALUE COLLECTION 815259PR is a metric hex head cap screw engineered for general industrial and mechanical fastening applications. Manufactured from Grade 8.8 steel with a zinc-plated finish, this screw delivers reliable tensile strength suitable for medium-to-high load assemblies. The partially threaded shank measures 150 mm in length under the head, with an M20 x 2.50 mm thread size and a 30 mm hex drive. It conforms to DIN 931 and ISO 4014 dimensional standards. Installation requires a standard hex wrench or socket. This fastener is typically installed by millwrights, maintenance technicians, and mechanical assemblers working in manufacturing, construction, and equipment service environments.

This screw is suited for structural and mechanical assemblies where a partially threaded metric fastener is specified. The partial threading allows the unthreaded shank to bear shear loads while the threaded portion engages a nut or tapped hole. Typical applications include machinery frames, flanged joints, steel fabrication, and heavy equipment assembly. The zinc plating provides baseline corrosion resistance for indoor and light-duty outdoor use. DIN 931 and ISO 4014 compliance ensures dimensional interchangeability with standard metric hardware across global equipment platforms.

Key Features

• M20 x 2.50 mm thread size, 150 mm length under head per DIN 931 and ISO 4014 standards
• Grade 8.8 steel construction for reliable medium-to-high strength fastening
• Zinc-plated finish for baseline corrosion resistance
• Partially threaded shank allows shear load distribution along the unthreaded section
• 30 mm hex drive compatible with standard metric sockets and wrenches
• Sold individually — quantity of one per package

Compatibility

Designed as a standard metric replacement or service fastener conforming to DIN 931 and ISO 4014 specifications, suitable for use wherever an M20 x 2.50 mm partially threaded hex cap screw is required.

Installation Notes

Installation is typically performed by qualified millwrights, mechanical technicians, or maintenance personnel using a properly sized metric socket or open-end wrench. Ensure mating threads are clean and free of debris before installation. Apply thread lubricant or anti-seize compound as required by the application to achieve accurate clamping force. Follow the applicable equipment manufacturer torque specifications and relevant industry standards when tightening.