Value Collection 534120PR M8x1.25 Flat Socket Cap Screw

Product Description

The VALUE COLLECTION 534120PR is a metric flat socket cap screw manufactured from 12.9 grade alloy steel with a black oxide finish. Conforming to DIN 7991, this fastener features a 90-degree flat head profile and a hex socket drive sized at 5 millimeters. The M8x1.25 thread runs fully along the 40-millimeter overall length. Grade 12.9 alloy steel provides high tensile strength suited to demanding mechanical assemblies. The black oxide coating offers mild corrosion resistance and reduces light reflection. This fastener is installed by machinists, millwrights, equipment fabricators, and mechanical contractors in applications requiring a flush or countersunk head profile.

This flat socket cap screw is suited for metal-to-metal assemblies where a flush fastening surface is required. The 90-degree countersunk head seats cleanly in chamfered bores, making it appropriate for machine frames, fixtures, tooling plates, and precision mechanical components. Its fully threaded shank provides consistent thread engagement across the full 40-millimeter length, making it useful in through-hole and shallow-tapped applications in both production and maintenance settings.

Key Features

• Grade 12.9 alloy steel for high tensile and proof load strength
• 90-degree flat head seats flush in standard countersunk bores
• 5 mm hex socket drive for precise torque application with standard Allen keys or hex bit drivers
• Fully threaded M8x1.25 shank across the full 40 mm length
• Black oxide finish for mild corrosion resistance and low-reflectance surface
• DIN 7991 standard for dimensional consistency and interchangeability

Compatibility

Designed as an OEM-style and general-purpose replacement metric flat socket cap screw for applications conforming to DIN 7991 with an M8x1.25 thread specification.

Installation Notes

Installation is performed by machinists, millwrights, or mechanical technicians using a 5 mm hex key or Allen bit driver. De-energize and lock out all equipment before fastener service in powered machinery per applicable OSHA lockout/tagout procedures. Verify that the receiving bore is chamfered to 90 degrees for proper head seating. Do not mix metric and standard tooling, and confirm thread engagement depth meets the requirements of the assembly design.