RS PRO Slot Countersunk Steel Machine Screw, M5 Thread, 20 mm Length, DIN 963, Zinc Plated Steel, 553-936

RS PRO 553-936 Slot Countersunk Steel Machine Screw is a high-quality fastener designed for precision engineering and general industrial use. Featuring a countersunk head with a slot drive, this M5 screw allows for flush installation, enhancing both the finished appearance and safety by minimizing protrusions in machinery, electrical enclosures, metal panels, and custom assemblies.

Engineered from robust steel and finished with a passivated zinc plating, this screw is built to offer excellent corrosion resistance in a variety of environments. The M5 thread diameter ensures compatibility with a wide range of components and makes it suitable for use in repair, construction, or new equipment manufacturing. The 20 mm length accommodates medium panel thickness, providing secure fastening without excess thread exposure.

This machine screw fully complies with DIN 963 standards, meaning it meets rigorous dimensional and quality requirements for interchangeability and industrial use. The slot drive type is easy to engage with standard flat-bladed screwdrivers, supporting fast manual installations or controlled automated assembly lines. Its countersunk profile is especially advantageous where a flush surface is essential for both mechanical integrity and a sleek visual finish.

The screw's zinc plated surface not only enhances its appearance but significantly improves resistance to rust and oxidation, making it reliable for maintenance operations, upgrades, and new projects alike. Its application breadth spans industrial fastener inventories, panel assembly, HVAC, electrical cabinets, and general purpose mechanical construction requiring robust, precision fasteners with clean finish.

Whether for equipment maintenance, machine building, metal sheet assembly, or secure panel installation, the RS PRO 553-936 slot countersunk steel machine screw delivers dependable performance and ease of use. Its adherence to industry standards and versatile construction make it a staple for workshops, manufacturers, and facilities managers seeking reliable fastening solutions.

Discover more industrial fasteners and Machine Screws from RS PRO and browse the full range of precision engineering hardware in the EnvMart industrial fastener category.