Medieval Conical Shield Boss – Hand-Forged 16-Gauge Steel Umbo with Mounting Rivets

Description

This Medieval Conical Shield Boss (or Umbo) is a battle-tested essential for building an authentic, fully functional shield. Each one is hand-shaped from robust 16-gauge steel using time-honored blacksmithing techniques. The surface bears visible hammer textures and a deep blackened patina—marks of true craftsmanship that reflect the rugged reality of medieval warfare.

The dome’s conical shape isn’t just for looks—it was developed to efficiently redirect slashes and thrusts away from the shield center, protecting the warrior’s hand while absorbing the energy of incoming blows. This style became a mainstay in Viking, Norman, and medieval European shields due to its effective defensive performance.

Historically, shield bosses like this were mounted on everything from Viking round shields to Norman kite shields and late-period heater shields. The design remained unchanged for centuries due to its practical value in combat, especially in tightly packed infantry formations or skirmishes involving axes, swords, and spears.

Installation is made simple with four pre-drilled holes and a complete set of rivets and washers included. Center the boss over your handgrip cutout, drill holes through your shield plank, then fasten the boss using the rivets and peen the ends flat. The included washers help distribute force evenly and prevent cracking in your shield material.

The natural blackened finish offers basic rust resistance while maintaining a raw, historical appearance. A light coat of oil will help preserve this finish for display or combat readiness.

Whether you’re forging your way through HEMA bouts, SCA melees, or crafting a museum-quality replica, this forged steel umbo grounds your project in real medieval function and form.

MEASUREMENTS:
• Overall Diameter: 16.8 cm / 6.6 in
• Inner Diameter: 12 cm / 4.7 in
• Depth: 6.3 cm / 2.4 in
• Weight: Approx. 400 g

CARE INSTRUCTIONS:
• Wipe clean after each use or handling
• Lightly oil surface to protect against moisture and rust
• Store in a cool, dry place
• Check rivets regularly to ensure they remain tight after use ⭐