Shree Submersible House

Allen key bolts (technically known as socket head cap screws or hex socket bolts) are fasteners featuring an internal hexagonal drive that requires an Allen (hex) key to tighten or loosen. They are the preferred choice for compact designs, precision machinery, and aesthetics because their heads can be recessed flush with or below the material surface. 

Hex flange bolts are high-performance fasteners featuring an integrated, washer-like flange beneath the hexagonal head. This one-piece design provides a wide bearing surface that distributes clamping pressure more evenly than a standard bolt, protecting the material surface and eliminating the need for a separate flat washer.

Hex bolts (also known as hex head bolts or machine bolts) are heavy-duty threaded fasteners characterized by their six-sided hexagonal head, designed for installation with a wrench or socket. They are commonly used in construction, machinery assembly, and automotive repairs due to their high tensile strength and ease of tightening from multiple angles.