Value Collection MSFX03040-050BX M3x0.5 Flat Head Slotted Screw 50pk

Product Description

The VALUE COLLECTION MSFX03040-050BX is a metric flat head slotted machine screw designed for general-purpose mechanical fastening applications. Manufactured from grade 18-8 stainless steel (A2) with a bright, uncoated finish, this screw resists corrosion in a wide range of environments. The M3x0.5 thread size and 40 mm overall length make it a common choice for light-duty assemblies in equipment panels, enclosures, and component mounting. The flat head profile seats flush with or slightly below the surface of the workpiece when countersunk correctly. This box contains 50 pieces, packaged as a single unit. Machinists, maintenance technicians, and assembly workers install these fasteners in both shop and field settings.

This screw is suited for metric threaded assemblies in electrical enclosures, HVAC equipment panels, plumbing fixture hardware, and general industrial fabrication. The slotted drive is compatible with standard flat-blade screwdrivers and manual slotted bits. Applications include securing sheet metal panels, small mechanical components, and instrument housings where a flush or countersunk head is required. The M3x0.5 thread pitch conforms to DIN 963, making these screws dimensionally interchangeable with other DIN 963-compliant fasteners of the same size.

Key Features

• M3x0.5 metric thread with 40 mm overall length per DIN 963 standard
• Grade 18-8 stainless steel (A2) construction for corrosion resistance
• Flat head profile designed for flush or countersunk seating
• Slotted drive accepts standard flat-blade screwdrivers and bits
• Bright, uncoated finish suitable for indoor and lightly exposed environments
• Box of 50 pieces for stocking and repeat-use applications

Compatibility

Designed as a DIN 963-compliant M3x0.5 flat head slotted machine screw for use in any metric-threaded assembly that accepts this thread size, pitch, and head style.

Installation Notes

Installation requires a correctly sized flat-blade screwdriver or slotted bit to avoid cam-out and head damage. The mating material should be tapped to M3x0.5 or fitted with a compatible nut or threaded insert before fastener installation. For flush seating, countersink the pilot hole to the appropriate angle matching the flat head geometry. Avoid over-torquing stainless steel fasteners, as galling can occur; apply an anti-seize compound when threading into stainless or aluminum components.