Application：
1. Connect with C-shaped steel to strengthen the screw rod.
2. Fix the screw rod on the inner back wall of the C-shaped steel, so that the screw rod and the reinforcing C-shaped steel form a whole, and the force is coordinated.
Structure：
1. The toothed lock buckle can be engaged with C-shaped steel.
2. The bolt head has a Y-shaped fork for fixing the screw rod.
Installation：
1. The screw rod is close to the inner back wall of the C-shaped steel.
2. The top locking buckle is inserted from the C-shaped steel opening surface and rotated 90° into position.
3. Tighten the hexagonal head bolts until the Y-shaped fork tightens the screw rod.
