U2 Fasteners Construction Screws 5/16" X 4" 400pc Box

Professional timber construction, staircases, deck frames, rafters, trellis framing, ledger boards, joists, planter boxes, post supports, play-set structures, retaining walls, facade attachments, laminated beams, SIP panels, fencing, pole barns, concrete forms and more.

It is hexavalent chromium (CR6+) free and complies with the strictest standards governing chemical substances in U-Gold or our proprietary black nano coating.