Value Collection -43151-1 M6x1 Flat Socket Cap Screw

Product Description

The VALUE COLLECTION -43151-1 is a flat socket cap screw designed for precision fastening applications requiring a flush or countersunk profile. Built to DIN 7991 standards, this screw features a 90-degree flat head with a 4 mm hex socket drive. The M6x1 thread size and 50 mm overall length make it well suited for medium-duty metric assemblies. Manufactured from 12.9 grade alloy steel with a black oxide finish, it delivers high tensile strength and moderate corrosion resistance. Partial threading along the shank provides a bearing surface for applications where a shoulder or grip length is required. This fastener is typically installed by machinists, mechanical assemblers, and maintenance technicians.

This screw is used in metal-to-metal assemblies, machine frames, fixtures, tooling plates, and equipment enclosures where a flush surface is required after fastening. The DIN 7991 standard makes it compatible with metric tooling and component designs across industrial, automotive, and general mechanical applications. The black oxide finish suits indoor and low-exposure environments. Sold in a minimum order quantity of 25 pieces, it is appropriate for shop stock and production use.

Key Features

• 90-degree flat head sits flush or countersunk in the mating surface
• 4 mm hex socket drive for precise torque application with standard Allen keys
• 12.9 alloy steel construction delivers high tensile and proof load strength
• Black oxide finish provides mild corrosion resistance and low-glare appearance
• Partial threading allows for a grip length in through-bolt or shoulder applications
• Conforms to DIN 7991 fastener standard for metric interchangeability

Compatibility

Designed as an OEM-style and general-use metric flat socket cap screw per DIN 7991, compatible with standard M6 metric tapped holes and countersunk metric hardware applications.

Installation Notes

Installation requires a 4 mm hex key or Allen driver rated for high-strength fasteners. Ensure the mating material is drilled and countersunk to the correct 90-degree angle before installation. Power down or de-energize any equipment before performing fastener service on live assemblies. Do not substitute a lower-grade fastener in high-load or safety-critical joints designed for 12.9 specification hardware.