Scaffold system

A coupling for use in connection of a cross member to a vertical member, the coupling comprising:

• a first member having an upper flange and a lower flange, mountable in spaced apart relation on the vertical member to form groove therebetween, the flanges each having an outer edge and at least one aperture;
• a removable lock pin shaped to be positionable passing thought the aperture in the upper flange and the aperture in the lower flange;
• and
• a second member connectable to the cross member and having an end shaped to fit into the groove with an opening alignable with the apertures in the flanges to accept the lock pin, whereby to be coupled to the first member, the second member being formed to substantially abut against the outer edges of the flanges when the second member is coupled to the first member.

A coupling for use in connection of a cross member to a vertical member, the coupling comprising:

• a first member having an upper flange and a lower flange, mountable in spaced apart relation on the vertical member to form groove therebetween, the flanges each having at least one aperture and the groove having a sectional shape defined by the flanges' shape and positioning;
• a removable lock pin shaped to be positionable passing thought the aperture in the upper flange and the aperture in the lower flange;
• and
• a second member connectable to the cross member and having an end shaped to fit into and substantially conform to the sectional shape of the groove with an opening alignable with the apertures in the flanges to accept the lock pin, whereby to be coupled to the first member.