Value Collection 534058PR M5x0.8 Flat Socket Cap Screw

Product Description

The VALUE COLLECTION 534058PR is a metric flat socket cap screw engineered for applications requiring a flush or countersunk fastener profile. Manufactured from 12.9 grade alloy steel with a black oxide finish, this screw delivers high tensile strength and moderate corrosion resistance. The 90-degree flat head seats cleanly into countersunk holes, eliminating protrusion above the mating surface. The hex socket drive accommodates a 3 mm hex key for precise torque application in tight spaces. At M5x0.8 threading and 25 mm overall length with full threading, it suits precision assemblies across mechanical, structural, and equipment fabrication work. Installation is performed by machinists, millwrights, and general trade mechanics.

This fastener is suited for metric-dimensioned assemblies in manufacturing, machinery mounting, and equipment enclosures where a low-profile flush head is required. The black oxide finish blends visually in dark enclosures and tool housings while providing a mild layer of surface protection. Full threading along the 25 mm length allows engagement across the entire grip range, making it appropriate for through-hole and short blind-hole applications. Conformance to DIN 7991 ensures dimensional consistency with standard countersunk hex socket fastener specifications used in metric tooling and industrial equipment.

Key Features

• 12.9 grade alloy steel construction for high tensile and proof load strength
• 90-degree flat head profile for flush countersunk installation
• Hex socket drive, 3 mm, for positive torque transfer in confined areas
• Black oxide finish for surface protection and low-reflectivity appearance
• Fully threaded M5x0.8 at 25 mm overall length for maximum thread engagement
• Conforms to DIN 7991 fastener standard for dimensional reliability

Compatibility

Designed as an OEM-style metric replacement or supplemental fastener for countersunk hex socket applications conforming to DIN 7991 dimensional standards in M5x0.8 metric thread assemblies.

Installation Notes

Installation is performed by machinists, millwrights, or qualified mechanics using a 3 mm hex key or hex bit driver. Always de-energize and lock out equipment before fastener service in live machinery. Ensure the mating countersink is machined to the correct 90-degree included angle to achieve full head seating. Avoid over-driving, which can shear the head on high-grade fasteners; use a calibrated torque tool appropriate for M5 class 12.9 hardware.