This is a cup square bolt and nut, supplied in M10 x 130mm size with a bright zinc plated finish. Designed for use in timber construction and metalwork, it offers a practical option for joining fence posts, beams, or other thick structural materials where a smooth, rounded head is needed for safety or visual appeal.
On site, the square shank beneath the low-profile head grips securely into the material, which helps prevent rotation as the nut is tightened on the opposite side. The included nut makes installation straightforward, while the length of the fixing is suitable for deep or heavy-duty assemblies where extra grip is required.
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