Value Collection 534016PR M3x0.5 Flat Socket Cap Screw

Product Description

The VALUE COLLECTION 534016PR is a metric flat socket cap screw designed for flush or countersunk fastening applications. Built to DIN 7991 standards from 12.9 grade alloy steel with a black oxide finish, this screw delivers high tensile strength in a low-profile head format. The 90-degree flat head seats flush with or below the work surface, and the hex socket drive provides positive torque engagement with a standard hex key. At M3x0.5 thread size and 25 millimeters overall length with partial threading, this fastener suits precision assemblies where head protrusion is not acceptable. Typically installed by machinists, millwrights, or equipment technicians.

This fastener is used in metal fabrication, machine component assembly, jig and fixture construction, and general industrial applications where a countersunk metric screw with high strength is required. The black oxide coating provides mild corrosion resistance and reduces light reflection, making it a common choice in tooling, optical mounts, and machinery guarding. The 12.9 grade rating indicates an exceptionally high-strength alloy steel fastener suitable for demanding mechanical joints. Sold individually with a minimum order quantity of 100 pieces.

Key Features

• DIN 7991 standard 90-degree flat hex socket head for flush countersunk installation
• 12.9 grade alloy steel construction for high tensile and proof load capacity
• Black oxide finish for mild corrosion resistance and low-glare appearance
• M3x0.5 metric thread with 2.00 mm hex socket drive size
• Partially threaded shank at 25 mm overall length
• Metric thread standard for compatibility with metric hardware assemblies

Compatibility

Designed as an OEM-style replacement or standard metric fastener for applications requiring a DIN 7991 flat socket cap screw in M3x0.5 thread size.

Installation Notes

Installation requires a 2.00 mm hex key or hex bit driver. Ensure the mating countersink is machined to 90 degrees to match the head angle before installation. Torque to the fastener manufacturer or equipment OEM specification for 12.9 grade M3 hardware. Always install into clean, properly tapped threads to avoid galling or thread damage in the base material.