Value Collection HC1020080-025BX M20 Hex Cap Screw

Product Description

The VALUE COLLECTION HC1020080-025BX is a metric hex head cap screw engineered for high-strength fastening applications. It carries an M20 x 2.50 thread profile with an 80 mm length under the head and is manufactured from Grade 10.9 steel, placing it in the high-tensile class used where structural integrity and clamping force matter. A black oxide finish provides moderate corrosion resistance and reduces light reflection on exposed fasteners. The screw is partially threaded and conforms to DIN 931, the widely recognized standard for partially threaded metric hex bolts. Licensed trades and maintenance professionals install this type of fastener in structural, mechanical, and equipment assemblies.

This fastener is suited for medium-to-heavy industrial and commercial applications where metric hardware is specified. Typical install scenarios include machinery frames, structural steel connections, flanged pipe assemblies, and equipment mounting where a partially threaded shank is required to bear shear loads without thread engagement through the full grip length. The DIN 931 form factor means it is interchangeable with other hardware conforming to that standard. It is appropriate for use wherever Grade 10.9 metric hardware is called out on engineering drawings or torque specifications.

Key Features

• Grade 10.9 steel construction delivers high tensile and proof load strength
• Partially threaded shank per DIN 931 allows shear-bearing grip length
• M20 x 2.50 metric thread profile with 80 mm length under head
• 30 mm hex key drive size for standard wrenching
• Black oxide finish for reduced surface corrosion and glare
• Metric thread standard for compatibility with metric-specified assemblies

Compatibility

Designed as an OEM-style metric fastener conforming to DIN 931 for use in any assembly specifying a partially threaded M20 x 2.50 x 80 mm Grade 10.9 hex cap screw.

Installation Notes

Installation should be performed by a qualified mechanic or tradesperson familiar with metric fastener torque specifications for Grade 10.9 hardware. Consult the equipment manufacturer or relevant engineering documentation for the required torque value before final tightening. Ensure mating threads are clean and free of debris before installation. Do not substitute a lower-grade fastener in applications where Grade 10.9 is specified.