A set screw is the type of screw used if a nut is not needed or cannot be incorporated in the application. It’s also called a blind screw or a grub screw. Set screws are mainly used when one needs to secure an object against another object or within another object, for example, a pulley to a shaft or a potentiometer knob. The set screw locks it in place. Set screws are driven into a threaded hole in the outer object and then tightened against the inner one. What sets set screws apart from the other screws is that they’re fully threaded.

An allen socket set screw is a screw characterized by its hexagonal point type. It’s driven by an internal-wrenching drive. Allen or hex socket is the primary driver used and is to be torqued using an Allen wrench, also called a hex key. Allen socket screws are often seen as advantageous over the normal Philip’s head. Allen screw head has six pressure points while the other one has only four. With more pressure points, it is easier to grip the screw making Allen screws preferable. 

304 Stainless Steel is the material used for this set screw. Type 304 Stainless steel is a T300 Series Stainless Steel austenitic. It has a minimum of 18% chromium and 8% nickel, combined with a maximum of 0.08% carbon. Knowing this, you may be confident that your 304 Stainless Steel Allen Socket Set Screw is corrosion-resistant.