Value Collection A410383 M4x0.7 Flat Socket Cap Screw 25pk

Product Description

The VALUE COLLECTION A410383 is a metric flat socket cap screw designed for flush or countersunk fastening applications. The screw features a 90-degree flat head driven by a 2.50 mm hex socket and is manufactured from 316 austenitic stainless steel conforming to Grade A4 and DIN 7991. The M4x0.7 thread and 16.00 mm overall length make it a compact, corrosion-resistant fastener suited for assemblies where the fastener head must sit flush with or below the mating surface. Partial threading along the shank provides controlled clamping force. This item is sold in a package of 25 pieces.

This flat socket cap screw is appropriate for light-duty mechanical assemblies, equipment fabrication, and maintenance applications across plumbing, HVAC, pool, and general industrial settings. The Grade A4 316 stainless steel construction resists corrosion from moisture, chlorides, and mild chemical exposure, making it a reliable choice for wet environments, outdoor installations, and coastal service conditions where carbon steel fasteners would degrade quickly.

Key Features

• 90-degree flat head profile for flush or countersunk installations
• 2.50 mm hex socket drive for precise torque application in tight clearances
• 316 austenitic stainless steel, Grade A4, for strong corrosion resistance including chloride environments
• Conforms to DIN 7991 fastener standard
• Partial threading for controlled clamping and shear-load distribution
• Sold in a package of 25 pieces with a minimum order quantity of 1

Compatibility

Designed as an OEM-style or replacement metric fastener for assemblies requiring a countersunk hex socket cap screw in M4x0.7 thread pitch per DIN 7991.

Installation Notes

Installation requires a 2.50 mm hex key or hex socket driver. Countersink the mating material to the appropriate 90-degree angle before driving the screw to achieve a proper flush fit. Do not exceed the recommended torque for M4 stainless steel fasteners, as over-torquing can cause galling or thread seizure common with austenitic stainless grades. Apply an anti-seize compound where galling is a concern.