Value Collection 534124PR Flat Socket Cap Screw M8x1.25

Product Description

The VALUE COLLECTION 534124PR is a metric flat socket cap screw designed for flush or countersunk fastening applications where a low-profile head is required. Manufactured from grade 12.9 alloy steel with a black oxide finish, this screw delivers high tensile strength and moderate corrosion resistance. It features a 90-degree flat head with a 5 mm hex socket drive and an M8x1.25 thread. At 50 mm overall length with partial threading, it is suited for through-hole and tapped blind-hole assemblies where precise clamping and thread engagement matter. Machinists, millwrights, and mechanical assembly technicians are the primary installers.

This screw is used in metric mechanical assemblies where a flush or recessed fastener head is required to avoid interference with mating parts or sliding surfaces. Typical applications include machine frames, fixtures, tooling plates, and precision equipment housings. The DIN 7991 standard governs the dimensional requirements, making this fastener interchangeable with other DIN 7991-compliant hardware of the same thread size and length. It is appropriate for both industrial production environments and maintenance repair operations.

Key Features

• Grade 12.9 alloy steel for high tensile and proof load strength
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• 90-degree flat head profile allows flush or countersunk installation
• 5 mm hex socket drive for precise torque application with standard Allen keys or hex bit drivers
• Partial threading suitable for clamping applications requiring a smooth shank section
• Conforms to DIN 7991 dimensional standard for consistent interchangeability

Compatibility

Designed as a DIN 7991-compliant metric flat socket cap screw for use in M8x1.25 tapped holes or through-hole assemblies requiring a countersunk fastener.

Installation Notes

Installation should be performed by qualified mechanical technicians familiar with metric fastener torque requirements for grade 12.9 hardware. Ensure the mating countersink angle matches the 90-degree head profile before seating to avoid head damage or improper clamping. Use a calibrated torque wrench and the appropriate 5 mm hex key or bit to avoid rounding the drive recess. Do not substitute a lower-grade fastener in applications where grade 12.9 strength is specified by engineering drawings.