This standard specifies the requirements for materials, dimensions, manufacture, and finish of hasps and staples used as builders' hardware for fastening doors, windows, gates, and shutters.
Specifies requirements for hasps and staples for doors and windows.
Quick Reference Values
Standard sizes (length)50, 63, 75, 90, 115, and 150 mm
Size designation criteriaOverall length of the hasp
Tolerance on length± 2 mm
Practical Notes
When specifying hasps and staples for external use, coastal areas, or damp environments, brass or aluminum should be preferred over mild steel to prevent corrosion.
Ensure the staple's eye diameter is verified against the shackle thickness of the intended padlock.