Hillman 6 Pcs Square Keys (1/4" x 1-1/4") | Zinc-Plated Steel Machine Keys for Shaft & Hub Locking | Mechanical Power Transmission Hardware for Industrial Equipment & Machinery

Hillman 6 Pcs Square Keys (1/4" x 1-1/4") | Zinc-Plated Steel Machine Keys for Shaft & Hub Locking | Mechanical Power Transmission Hardware for Industrial Equipment & Machinery

• SQUARE KEYS FOR MECHANICAL AND INDUSTRIAL SHAFT CONNECTIONS: 1/4 in. x 1-1/4 in. machine keys connect rotating shafts and hubs in motors, pulleys, and gears, providing reliable torque transfer in mechanical power transmission systems.
• PREVENTS RELATIVE ROTATION BETWEEN SHAFT AND HUB: Square keys fit into keyways between a shaft and hub, locking both components together to transfer torque while preventing independent rotation or slipping during mechanical operation.
• PRECISION SIZED FOR STANDARD 1/4 IN. KEYWAY COMPATIBILITY: Each key measures 1/4 in. x 1-1/4 in. for reliable fit in machinery components designed for standard 1/4 in. keyways, ensuring effective torque transfer between components.
• DURABLE STEEL CONSTRUCTION FOR DEMANDING MECHANICAL APPLICATIONS: High-quality steel provides strong, dependable performance for machinery repair, industrial assemblies, and equipment requiring reliable shaft-to-hub torque connections.
• TRUSTED HILLMAN FASTENING SOLUTIONS: Hillman hardware products are engineered for consistent quality, dependable performance, and reliable fastening across construction, repair, and home improvement project applications.