A test lead assembly comprising: a first test lead having a first cable extending between a distal end and a proximal end, a first test probe attached to the distal end and a first plug attached to the proximal end; a second test lead having a second cable extending between a distal end and a proximal end, a second test probe attached to the distal end, and a second plug attached to the proximal end; and a fastener member for repeatedly releasably engaging at least a portion of the first cable with at least a portion of the second cable along a length of the first and second cables, wherein the fastener member is a zipper fastener which comprises: a first interlocking profile integrally formed on an outer surface of the first cable; a second interlocking profile integrally formed on an outer surface of the second cable; a first zipper slider for engaging the first interlocking profile with the second interlocking profile in a forward direction from the proximal ends of the first and second cables to the distal ends of the first and second cables, and releasing the engaged first interlocking profile from the second interlocking profile in a reverse direction opposite to the forward direction; and a second zipper slider for engaging the first interlocking profile with the second interlocking profile in the reverse direction and releasing the first interlocking profile from the second interlocking profile in the forward direction. a first test lead having a first cable extending between a distal end and a proximal end, a first test probe attached to the distal end and a first plug attached to the proximal end; a second test lead having a second cable extending between a distal end and a proximal end, a second test probe attached to the distal end, and a second plug attached to the proximal end; and a fastener member for repeatedly releasably engaging at least a portion of the first cable with at least a portion of the second cable along a length of the first and second cables, wherein the fastener member is a zipper fastener which comprises: a first interlocking profile integrally formed on an outer surface of the first cable; a second interlocking profile integrally formed on an outer surface of the second cable; a first zipper slider for engaging the first interlocking profile with the second interlocking profile in a forward direction from the proximal ends of the first and second cables to the distal ends of the first and second cables, and releasing the engaged first interlocking profile from the second interlocking profile in a reverse direction opposite to the forward direction; and a second zipper slider for engaging the first interlocking profile with the second interlocking profile in the reverse direction and releasing the first interlocking profile from the second interlocking profile in the forward direction. a first interlocking profile integrally formed on an outer surface of the first cable; a second interlocking profile integrally formed on an outer surface of the second cable; a first zipper slider for engaging the first interlocking profile with the second interlocking profile in a forward direction from the proximal ends of the first and second cables to the distal ends of the first and second cables, and releasing the engaged first interlocking profile from the second interlocking profile in a reverse direction opposite to the forward direction; and a second zipper slider for engaging the first interlocking profile with the second interlocking profile in the reverse direction and releasing the first interlocking profile from the second interlocking profile in the forward direction.