The Connecting Bolt XL double burnished provides a hardened, permanent fastening solution for Siegmund System 28 setups. Built for secure, long-term connections between tables and U-squares, it combines strength, precision, and durability under heavy torque and load conditions.
- The 72mm (2.83" Inches) length supports clamping of two components.
- Double burnished surface increases durability and wear resistance.
- Handles extremely high tightening torque for permanent connections.
- Hardened construction ensures long service life.
- Hexagon socket (Size 10) and external hexagon (Size 32) allow flexible tightening.
- Not suitable for aluminum profiles or elongated holes.
Key Features:
- Designed for permanent fastening between tables and U-squares.
- Double burnished and hardened for extended durability.
- Handles 200 kN (44,961.0 lbf.) shear force.
- Delivers 20 kN (4,496.2 lbf.) tensile force in steel setups.
- Tightening torque steel 420 Nm (3,716.2 lbf·in.) for secure locking.
Specifications:
- Item No.: 2-280563
- System: Siegmund System 28 Metric Series
- Length: 72mm (2.83" Inches)
- Weight: 0.77 lbs. (0.35 kg.)
- Shearing Force: 200 kN (44,961.0 lbf.)
- Tensile Force Steel: 20 kN (4,496.2 lbf.)
- Tightening Torque Steel: 420 Nm (3,716.2 lbf·in.)
- Connection Type: Hexagon Socket (Size 10) and External Hexagon (Size 32)
- Material: Hardened, Double Burnished
Common Uses:
This bolt provides fixed, long-term fastening of Siegmund System 28 tables and U-squares. Its hardened, double burnished design ensures durability and strength under extreme torque. Fabricators use it where stability, precision, and permanent structural fastening are required.


