Hex High Tensile Bolt SAE J429 Grade8, Material: 40Cr, From Ningbo S&D Metalwork Co.,Ltd, www.sendingmetalwork.com
https://www.waterworkstraining.com/products/Wedge_Style_Joint_Restrainer.php – Training and Installation “The Basics” lesson 20 covers the importance of a square cut pipe, placement of the gland and gasket and how to properly torque the bolts and torque limiting twist-off nuts in an alternating or star pattern.