Description: The surface is resistant to glue adhesion, allowing for easier locking compared to non-resistant screws. Waterproof, anti-mud, and anti-dust properties help protect the shaft interior and improve shaft lifespan. Install using an M8 Allen wrench. Universal fit with reliable quality. Features: - Color: Black - Material: Steel - Size: 2.00 x 2.00 x 2.00 cm / 0.79 x 0.79 x 0.79 in - Suitable for square cranksets with M8 thread - Fine-thread screws provide secure fixation and enhanced durability - Steel construction with electroplated finish for waterproof performance - Designed to prevent glue buildup on the surface, enabling easier installation - Sealed design helps prevent water, mud, and dust from entering the shaft, extending component life Package list: 10 x Hexagon socket screw