HWA brackets M8 M10 nut zinc is used to attach the downspout to a wall, a wooden or steel sheet piling. This is a combination nut; both M8 and M10 threads fit. For mounting against a wooden wall or a stone wall, use the bracket in combination with a stick end. For the wall, first drill a hole and insert a plug. To attach to a steel sheet pile wall, use the bracket in combination with a wall plate.
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