Riegel Fasteners supplies a complete range of hexagon socket (Allen key) driven fasteners, including socket head cap screws, button head, countersunk/flat head, and socket set (grub) screws, engineered for high-torque, space-constrained assemblies.
| Materials Available | Mild Steel (MS), Stainless Steel (SS 304 / SS 316), Alloy Steel, Brass, High Tensile Steel |
| Standards | IS, DIN, ISO, ANSI/ASME |
| Finishes | Zinc Plated, Black Oxide, Hot Dip Galvanized (HDG), Passivated, Self Colour |
| Grades | As per product (e.g. Spring steel HRC 47-54, stainless steel A2) |