Simpson 3/8" x 5" Countersunk Titen HD Anchor Heavy-Duty PACK:100 Pk The extra optional triangle holes

The extra optional triangle holes are provided to allow additional nailing for increased load capacity when the application demands higher performance beyond the standard nail pattern

and other furniture requiring hinge installation

Tri-Lobe Thread design - engineered to grip composite decking material firmly

Rotated Straps: Straps rotated 90 deg

5/8" Forstner Bit

Simpson 3/8" x 5" Countersunk Titen HD Anchor Heavy-Duty PACK:100 Pk The extra optional triangle holesSimpson THD37500CS Titen HD 3 8 in. x 5 in. Zinc Plated Countersunk Head Heavy Duty Screw Anchor by Simpson Strong Tie is engineered for high performance anchoring in cracked and uncracked concrete and masonry. This carbon steel screw anchor delivers industry leading load performance under static, seismic, and wind governed conditions, while its countersunk head design enables clean, flush mount installations where a traditional hex head anchor simply