Brass Countersunk Hex Socket Screw | Flat Head Allen Fastener for Flush-Mount Applications
Designed for applications requiring a completely flush surface finish, our Brass Countersunk Hex Socket Screw —commonly known as a Flat Head Allen Screw —combines the aesthetic warmth of brass with the precision of a hex socket drive and the clean lines of a countersunk head profile. When installed into a properly prepared countersunk hole, the 82° or 90° conical head sits perfectly flush with or slightly below the surrounding surface, creating an uninterrupted finish ideal for furniture, architectural millwork, marine interiors, and decorative hardware applications. Manufactured from high-quality brass alloy (C36000 / CZ121) , these screws offer excellent corrosion resistance, non-magnetic properties, and a timeless golden appearance that develops a natural patina over time. The hex socket drive provides positive torque transmission without the cam-out common to Phillips or slotted drives, enabling precise seating of the countersunk head to the desired depth. Available in metric and inch thread sizes, our brass flat head socket screws deliver both functional reliability and visual refinement for projects where fasteners must remain discreet yet accessible.
