Simpson 6-9/16" Heavy Girder Tie Down HGT-4Model No. HGT 4 Description. 4 ply width Gauge. 7 W (in.) 6 9 16 H (in.) 3 5 8 Coating Material. Simpson Strong Tie Gray Paint Product Guide & SPECS. View Specifications The HGT is a girder tiedown for high load, 2 , 3 or 4 ply truss applications. The HGT offers high uplift capacity for girders and can be installed on trusses and beams with top chord slopes up to 8 12. The HGT can be anchored down into place directly into CMU or in combination with a