An Allen grub screw is a type of fastener typically used to secure components in place, especially in mechanical assemblies. It features a hexagonal drive, which allows for easy installation and removal using an Allen wrench or hex key. Grub screws are often used in applications where space is limited or where other fasteners might not be effective, such as in securing gears, pulleys,... https://vidyafasteners.com/t-bolt-manufacturer-india/