Value Collection 0410MSL 4-40 X 5/8 Fillister Slotted Machine Screw

Product Description

The VALUE COLLECTION 0410MSL is a 4-40 UNC machine screw with a fillister head and slotted drive, designed for precision fastening in light-duty mechanical assemblies. The fillister head profile sits higher and narrower than a pan head, making it well suited for countersunk recesses and close-clearance applications. Constructed from steel with a zinc finish, this screw measures 5/8 inches in length under head and conforms to ASME B18.6.3 and SAE J82 standards. It is sold individually but requires a minimum order quantity of 100 pieces per purchase.

This screw is commonly used in electrical enclosures, instrument panels, electronics chassis, light mechanical assemblies, and OEM equipment where a 4-40 threaded fastener is specified. The slotted drive is compatible with standard flat-blade screwdrivers, making it a practical choice for field service and production line work. The zinc finish provides basic corrosion resistance suitable for indoor and light-duty environments.

Key Features

• 4-40 UNC thread size for use in standard tapped holes and threaded inserts
• Fillister head profile provides greater head height for improved drive engagement
• Slotted drive accepts standard flat-blade screwdrivers
• Steel construction meets SAE J82 material grade requirements
• Zinc finish adds basic corrosion resistance for indoor applications
• Conforms to ASME B18.6.3 dimensional standards

Compatibility

Designed as a standard 4-40 UNC machine screw for use in any tapped hole or threaded insert specifying a 4-40 thread with a fillister head profile and 5/8-inch length under head.

Installation Notes

Installation is performed with a flat-blade screwdriver sized to the screw slot. Confirm the mating tapped hole or nut is clean and correctly sized to 4-40 UNC before driving. Do not overtighten into thin sheet metal or plastic to avoid stripping threads. Follow applicable equipment manufacturer torque guidelines for the mating assembly.