wire internal hex set screws, stainless steel 304, M6 and M8 sizes, 20 mm length, 20 pieces. These set screws provide a simple, reliable way to secure components on shafts or in fixtures. Made from 304 stainless steel, they offer corrosion resistance and solid strength for general purpose mechanical assemblies. The screws feature an internal hex drive (Allen) for a flush, lowprofile installation that sits tight against the mating surface. Key attributes Material: 304 stainless steel Drive type: internal hex (Allen) drive Type: set screws Sizes: M6 and M8 threads Length: 20 mm Quantity: 20 pieces Application environment: suitable for a range of indoor and outdoor uses due to stainless steel composition Use cases Securing a pulley, gear, or collar onto a shaft to prevent slipping and maintain positioning Attaching a knob or handle to a shaft in furniture, equipment, or fixtures with a clean, recessed appearance Locking components in a jig, fixture, or machine setup to prevent unwanted movement during operation Installation tips Use an appropriately sized Allen key to achieve full engagement of the internal hex socket Ensure the mating surface is clean and of debris before tightening to maximize grip and seating Do not overtighten; apply enough torque to secure the part without deforming the screw or the surrounding material Product uses and compatibility Compatible with metric M6 and M8 threaded applications Ideal for places where a flush, tamperresistant fastener is desirable Suitable for general mechanical assemblies, fixtures, cabinetry, and workshop projects requiring reliable set screws