Rafter bolt mounting bracket is one kind of mounting system used to screw into steel purlins or wooden rafter on corrugated and trapezoidal roofs. The double head screw with three flange nuts and one resistant EPDM washer is frequently used with L foot or stainless steel plate to combine with mounting rail.
YRK Hanger bolts with stainless steel adapter plate are suitable for corrugated fibre cement coverings with a wooden substructure and they are equipped with an extra-long metric thread for installation height adjustment.
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