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Metric Knurled Cup Point Socket Set Screws, 45H Iso 4029, Thermal Black Oxide, Alloy
Metric knurled cup point socket set screws manufactured to ISO 4029 and hardened to 45H deliver high‑strength, vibration‑resistant performance for demanding mechanical applications. Constructed from premium alloy steel and finished with a thermal black oxide coating, these fasteners combine superior holding power with improved wear resistance and light corrosion protection.
The knurled cup point is designed with a serrated rim surrounding a deep cup, enabling the screw to bite into the mating surface for enhanced friction and stable anchoring. This design makes them highly effective in high‑vibration, high‑torque environments, preventing loosening or rotational creep. The internal hex (Allen) drive allows for efficient torque application and easy access in confined spaces.
For large scale orders, request a quote to receive our best pricing available for your custom order.
These metric 45H knurled cup point set screws offer aggressive gripping action ideal for securing shafts, collars, pulleys, gears, and rotating assemblies. The knurled edges dig into the mating surface to prevent slippage, while the cup point centers and stabilizes the screw under load.
The thermal black oxide finish provides enhanced lubricity, improved assembly performance, and a uniform black appearance suitable for industrial and equipment applications. ISO 4029 compliance ensures precise dimensions, reliable fit, and consistent performance in precision‑engineered assemblies.
Available in a wide range of metric sizes to support OEM production, maintenance, and machine‑building requirements.
