Dual-purpose design allows use as both a post cap and base for flexible installation
G90 galvanized coating enhances corrosion resistance for outdoor and harsh environments
Compatible with both nails and Strong-Drive SD connector screws for versatile fastening
Approved for use with specified fasteners to ensure structural integrity
Summarized by Shop
The Simpson BC40 4x Post Base is an 18-gauge steel connector from Simpson designed to securely anchor the bottom of 4x posts or columns to a wood deck surface - delivering a stronger, more reliable connection than angled nailing or screw fastening alone. Built for light base applications such as decks and patio covers, this post base fea
Nominal Post Size
4x
Material
Galvanized steel
Finish
G90 galvanized
Dimensions
3 9/16 in W x 3 1/4 in L x 2 1/4 in H
Fastener Required
16D Commons or 16DX2.5 joist hanger nails (post flange 6 0/16 x 3 1/2 in, base bottom 4 0/16 x 3 1/2 in)