Plate washer 4 (1/2") split hole black iron, template gasket
Also known as: template gasket, butterfly piece, template gasket
Hardware accessories for building materials and formwork; formwork washers are stamped from ordinary iron plates and are used with screws to fix the formwork combination.
4(1/2") holes 100 pieces About 16KG/box
Three-dimensional stamping
In addition to being easy to assemble and disassemble, the formwork accessories are reusable, saving construction costs.