S. R. Forgings

A Hex Flange Bolt is a hexagonal head bolt with an integrated circular flange (like a washer) directly underneath the head, designed to distribute the load over a larger area and resist loosening under vibration. This integrated flange eliminates the need for a separate washer, providing a stronger and more secure fastening, often used in demanding applications like automotive and construction.

An "LN key bolt" is most likely a socket head cap screw (or Allen bolt) that requires an Allen key (hex key) to be tightened. The term "LN" doesn't refer to a specific feature of the bolt itself but could be a typo or shorthand for a bolt with an internal hex (Allen) socket, as seen in the context of Allen keys and bolts.

Mild Steel Threaded Rods

A brass hex bolt is a versatile and durable threaded fastener with a hexagonal (six-sided) head, used for securing components in applications ranging from furniture and machinery to electrical systems and construction. Its benefits include excellent corrosion resistance, non-magnetic properties, good conductivity, and an attractive aesthetic, making it suitable for both heavy-duty and decorative uses, especially where moisture or a unique finish is a concern.

An 8.8 hex bolt is a high-strength, heat-treated structural fastener made from medium-carbon alloy steel with a hexagonal head. The "8.8" is a strength class rating, indicating a high tensile strength of approximately 800 MPa and a minimum yield strength of about 640 MPa. These bolts offer good ductility and are widely used in industrial and structural applications, such as construction, machinery, and automotive assembly.