3/8" x 2-1/2" Strong-Tie THD37212CS Countersunk Titen HD Anchor - Zinc, Pkg 50 Deck Screws wings on the shaft counterbore

wings on the shaft counterbore hard material allowing the head to countersink cleanly

reliable alternative to traditional expansion anchors

For Common Rafters:

Pre-drilling may be required when working with dense engineered wood to prevent splitting

If you have a nominal joist measuring 5-1/2 x 9-1/2" you will need an APHH610 Ornamental Joist Hanger

3/8" x 2-1/2" Strong-Tie THD37212CS Countersunk Titen HD Anchor - Zinc, Pkg 50 Deck Screws wings on the shaft counterboreSimpson Strong Tie Countersunk Titen HD Anchors are the professionals choice when a flush finish and high performance anchoring in concrete or masonry are required. These mechanical screw anchors combine code listed reliability with a sleek, countersunk head profileperfect for applications where exposed fasteners need to sit flat and out of the way. Designed for cracked and uncracked concrete, each anchor features a serrated cutting thread and