Simpson 6 x 25-1/2 Heavy Strap Tie HST6Model No. HST6 Gauge. 3 Width (in.) 6 Length (in.) 25 1 2 Coating Material. Simpson Strong Tie Gray Paint Product Guide & SPECS : View Specifications The HST is designed to support heavy, concentrated loads by creating a strong connection between wood girders and piles. The HST is a heavy, load rated, precut strap designed for optimal performance. Installs with (12) 3 4 inch machine bolts Designed to resist wind and seismic forces Note: Product