Value Collection 43128 M4x0.7 Flat Socket Cap Screw 25 Pack

Product Description

The VALUE COLLECTION 43128 is a metric flat socket cap screw designed for flush or countersunk fastening applications where a low-profile head is required. Manufactured from 12.9 grade alloy steel with a black oxide finish, this screw delivers high tensile strength and moderate corrosion resistance in a compact M4x0.7 thread profile. The 90-degree flat head seats flush into a countersunk surface, and the 2.5 mm hex socket drive allows precise torque application with a standard hex key. The screw is fully threaded along its 8 mm overall length, making it suitable for thin material assemblies. Licensed tradespeople and maintenance professionals install this fastener in precision mechanical and structural assemblies.

This screw is suited for metric fastening applications in mechanical equipment, fixtures, and fabricated assemblies where a flush head profile is required. The DIN 7991 fastener standard governs its dimensional and performance specifications, making it compatible with metric countersunk hole patterns following that specification. It is commonly used in machinery maintenance, tool and die work, and industrial assembly environments. Each package contains 25 screws, making it appropriate for both small repair tasks and volume production use.

Key Features

• 12.9 grade alloy steel construction for high tensile and shear strength
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• 90-degree flat head seats flush in standard countersunk holes
• 2.5 mm hex socket drive for precise torque with a standard hex key
• Fully threaded along the entire 8 mm length for maximum thread engagement
• Conforms to DIN 7991 fastener standard

Compatibility

Designed as a DIN 7991-compliant metric flat socket cap screw for use in M4x0.7 countersunk applications following metric thread standards.

Installation Notes

Installation is performed with a 2.5 mm hex key or socket bit driver. Ensure the mating countersunk hole is machined to the correct 90-degree angle and depth before seating the fastener. De-energize or lock out any equipment before fastener replacement in live assemblies. Do not exceed the torque rating appropriate for 12.9 grade M4 fasteners as specified by the equipment manufacturer or applicable engineering standards.