Simpson Strong-Tie HTT4 Tension Tie The HPA35 purlin anchor is

The HPA35 purlin anchor is made of 10 gauge galvanized steel

It also allows the use of fewer nails

The Simpson Strong-Tie HD7B bolted holdown features a unique seat design which greatly minimizes deflection under load

The Simpson Strong-Tie HU26-2 is a double 2 x 6 hanger made with 14 gauge galvanized steel

Simpson Strong-Tie HTT4 Tension Tie The HPA35 purlin anchor isTension ties offer a solution for resisting tension loads that is fastened with nails. The entire line of tension ties has been tested and evaluated to the requirements of AC155. Made of 11 gauge galvanized steel. Fasten with Eighteen 16D galvanized nails or Eighteen 10D 1 1 2 galvanized nails or Eighteen SD #10 x 1 1 2 screws and a 5 8 anchor.