Mansour Mining Technologies
Ground Support
See Ground Support products
Flat washers are available in the following standard sizes. 1/4" x 4" x 4" (6.4mm x 100mm x 100mm). 1/4" x 5" x 5" (6.4mm x 125mm x 125mm).
The standard dome is designed to collapse at 8 tons +- 1/2 ton. This feature gives operators a good visual reference to changing ground conditions.
A Hardened washer provides a more constant torque tension.