4" Simpson T20ABNB 8 Gauge Annular Ring Shank Box Nail - 316 Stainless Steel, Pkg 25 Lb Truss Plate Screws Concealed-Flange Design: The hidden header

Concealed-Flange Design: The hidden header flanges offer clean lines for exposed conditions and allow installation close to the end of the supporting beam

High Thread Engagement: Aggressive threads deliver secure fastening in concrete and masonry without anchors

(1) APVST610 Flat Strap

General post-to-concrete framing in wet or exposed conditions

Designed for fastening into metal without the need to predrill

4" Simpson T20ABNB 8 Gauge Annular Ring Shank Box Nail - 316 Stainless Steel, Pkg 25 Lb Truss Plate Screws Concealed-Flange Design: The hidden headerThe Simpson T20ABNB is a heavy duty 8 gauge box nail with a 4" length and an annular ring shank for exceptional holding power. Made from 316 stainless steel, this nail is built to withstand the harshest environments including coastal, marine, and chemically treated wood applications. The ring shank design delivers superior withdrawal resistance, making this nail ideal for structural framing, decking, fencing, and other critical exterior wood to wood