RS PRO Black Steel Hex Socket Countersunk Screw M10 x 40 mm 10.9 Grade Steel 124-7199

RS PRO 124-7199 Black Steel Hex Socket Countersunk Screw M10 x 40 mm is engineered for industrial and mechanical use where a secure and flush fastening is essential. Made from high strength 10.9 grade steel, this metric thread countersunk hex socket screw provides a nominal tensile strength of 1040 N/mm² and a yield strength of 940 N/mm². The black finish not only enhances its resistance to wear and corrosion but also offers an aesthetically pleasing, uniform appearance suitable for visible assemblies.

This countersunk screw is ideal when the fastener needs to sit flush or below the surface of the workpiece, preventing any protrusions that could interfere with the operation or safety of equipment. The hex socket drive allows effective tightening and removal using an Allen key, enabling reliable assembly in confined spaces.

The RS PRO 124-7199 screw complies with DIN 7991 specifications, ensuring dimensional accuracy and performance consistency for industrial equipment, woodworking, and electronic assemblies. Its robust construction makes it appropriate for light duty applications where mechanical load and reliability are important, such as panel building, security guarding, domestic use, and machinery repair.

The countersunk head design prevents interference and damage to adjoining parts. Hex drive ensures positive and stable torque during tightening. Produced in high tensile 10.9 grade steel for elevated strength and resilience.

Black oxide finish maintains visual uniformity and corrosion protection. Threaded to metric standards for easy compatibility with standard tapped holes and nuts. Commonly used in automated manufacturing, automotive, medical, and facilities maintenance applications.

This fastener is a reliable choice for professionals requiring dependable mechanical fastening and a clean, flush surface finish. Browse the EnvMart Industrial Fasteners category for additional sizes and finishes of hex socket countersunk screws including stainless steel and zinc coated variants tailored for diverse industrial needs.

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