Value Collection HC1020100-025BX M20 Hex Cap Screw

Product Description

The VALUE COLLECTION HC1020100-025BX is a metric hex head cap screw designed for high-strength fastening applications in mechanical assemblies, structural connections, and industrial equipment. Manufactured from Grade 10.9 steel with a black oxide finish, this screw delivers high tensile strength and moderate corrosion resistance. It measures M20 x 2.50 thread pitch with a 100 mm length under head and features partial threading per DIN 931 standards. The 30 mm hex drive size accommodates standard metric wrenches and sockets used by millwrights, maintenance technicians, and mechanical contractors.

This fastener is suited for use in heavy equipment assembly, machinery mounting, structural steel fabrication, and general industrial maintenance. The partial threading configuration is appropriate for through-bolt applications where a smooth shank is required in the grip area. Grade 10.9 tensile rating makes it a common choice for high-load bolted joints in both original equipment manufacturing and field service environments. Black oxide finish provides a low-reflectance surface and light surface protection in dry or mildly controlled environments.

Key Features

• Grade 10.9 steel construction for high tensile strength in demanding fastening applications
• Partial threading per DIN 931 standard for through-bolt and grip-length applications
• Black oxide finish for light surface protection and low-reflectance appearance
• M20 x 2.50 mm thread pitch with 100 mm length under head
• 30 mm hex drive compatible with standard metric wrenches and impact sockets

Compatibility

Designed as a metric-standard replacement or general-use hex head cap screw for industrial assemblies, machinery, and structural applications requiring DIN 931 partially threaded M20 fasteners.

Installation Notes

Installation should be performed by qualified mechanical or maintenance technicians familiar with metric fastener torque requirements for Grade 10.9 hardware. Always verify mating thread condition and ensure proper thread engagement before applying load. Use a calibrated torque wrench sized for 30 mm hex drive to achieve correct clamping force per applicable engineering specifications. Do not substitute Grade 10.9 fasteners in applications specifying a different strength grade without engineering approval.