The Siegmund Flush Mount Bolt without Slot Double Burnished (2-AP220528) is a precision-engineered fastener designed for clean, flush surface mounting in Siegmund System 22 aluminum setups. Its slot-free, burnished body ensures smooth operation, minimizes wear, and prevents debris buildup — ideal for maintaining surface accuracy in modular clamping environments.
- Featuring a countersunk head that sits flush with the borehole, this bolt allows for unobstructed clamping and setup alignment. The adapted collar makes it specifically suited for connecting Siegmund aluminum profiles and accessories, offering secure and reliable fastening without surface protrusions.
- Crafted from hardened, double burnished steel, the bolt delivers long-lasting corrosion resistance and consistent torque performance.
Key Features:
- Smooth, slot-free body ensures low-friction operation and precision fit.
- Flush countersunk head for clean alignment and obstruction-free surfaces.
- Optimized collar for use with aluminum profiles only.
- Rated for 130 kN (29,225.9 lbf.) of shearing force and 2 kN (449.6 lbf.) of tensile force.
- Features Size 5 hex socket for controlled torque application.
Specifications:
- Series: Siegmund System 22 Metric Series
- Length: 50mm (1.97" Inches)
- Weight: 0.29 lbs. (0.13 kg.)
- Shearing Force: 130 kN (29,225.9 lbf.)
- Tightening Torque Aluminum: 6 Nm (4.4 lbf-ft)
- Tensile Force Steel: 2 kN (449.6 lbf.)
- Material: Hardened, Double Burnished Steel
- Socket Size: 5mm Hex
Common Uses:
The Siegmund 2-AP220528 Flush Mount Bolt without Slot Double Burnished is ideal for precision assembly and clamping applications that demand flush-mounted fastening solutions. It is primarily used to connect Siegmund aluminum profiles and components where a clean, even surface finish is essential for measurement or positioning accuracy.


