the strap holder 12 into the first side 4 of the first structural member 3 as best shown in fig3 5 and 6 preferably the strap holder 12 additionally comprises a first transition line 19 and a second transition line 20 the first transition line 19 and the second transition line 20 dividing the upper face 13 and the lower face 14 into a first attachment portion 21 a second attachment portion 22 and a first securement portion 23 between the first transition line 19 and the second transition line 20 the first securement portion 23 is dimensioned to closely interface with the upper surface 6 of the strap member 5 the first transition line 19 being closely parallel to the first side edge 8 of the strap and the second transition line 20 being closely parallel to the second side 17 edge 9 of the strap as best shown in fig7 and 8 preferably one or more of the first plurality of fasteners 15 passes through the first attachment portion 21 into the first side 4 of the first structural member 3 one or more of the first plurality of fasteners 15 passes through the second attachment portion 22 into the first side 4 of the first structural member 3 and one of more of the first plurality of fasteners 15 passes through the first securement portion 23 through the strap member 5 and into the first side 4 of the first structural member 3 as best shown in fig1 in a preferred embodiment the first structural member 3 is a header and the first side 4 of the first structural member 3 is a vertical face of a header the connector 28 and the.