http://www.qejfasteners.com/seismic-bracing/
Hebei Qierjie New Energy Technology Co.,Ltd, professional manufacturer for Seismic Bracing products, Tightening Bolt 8.8 Grade, the main parts for seismic bracing project during building construction installation.
Bolts for construction and exterior building applications, these bolts are often used to join I-beams and scaffolding. Bolts are strong enough to stand up to the sideways forces of joints.