Value Collection 535004PR M3x0.5 Button Socket Cap Screw

Product Description

The VALUE COLLECTION 535004PR is a metric button socket cap screw manufactured from alloy steel with a black oxide finish. It features an M3x0.5 thread and a 6 mm length under head, driven by a 2 mm hex socket. The button head profile provides a low-profile, rounded appearance suited for assemblies where clearance is tight or aesthetics matter. At a material grade of 12.9 and a hardness rating of 38-43 HRC, this fastener delivers high tensile strength for demanding mechanical and structural applications. It conforms to ANSI/ASME B18.3.4M and ISO 7380 standards, ensuring dimensional consistency across precision assemblies.

This screw is commonly used in machine assembly, fixture building, tooling, robotics, and light structural applications where a recessed hex drive and low-profile head are required. The black oxide coating provides mild corrosion resistance and reduces light reflection, making it a practical choice for both industrial equipment and precision instrument housings. It is fully threaded and suitable for use in metric-threaded holes or with a matching metric nut. This item is sold individually but carries a minimum order quantity of 100 units.

Key Features

• M3x0.5 metric thread with right-hand thread direction and 4G/6G fit class for reliable engagement
• Alloy steel construction at material grade 12.9 for high tensile and proof load strength
• 38-43 HRC hardness rating supports use in high-stress fastening applications
• 2 mm hex socket drive with low-profile button head for tight-clearance installations
• Black oxide coating reduces surface corrosion and minimizes reflectivity
• Conforms to ANSI/ASME B18.3.4M and ISO 7380 standards for dimensional accuracy

Compatibility

Designed as a standard metric replacement or new-installation fastener for M3x0.5 threaded assemblies conforming to ISO 7380 and ANSI/ASME B18.3.4M specifications.

Installation Notes

Installation is performed using a 2 mm hex key or hex socket driver. Verify that the mating threaded hole or nut is M3x0.5 metric before installation to ensure proper thread engagement. Always check that the fastener grade is appropriate for the joint load before torquing. Black oxide fasteners should not be used as a substitute for fully corrosion-resistant hardware in wet or outdoor environments without additional protective treatment.