GRK RSS-185 10 by 3-1/8-Inch Structural Screws, 50 Screws per Package - 772691121370 : Amazon.co.uk: DIY & Tools
GRK RSS-185 10 by 3-1/8-Inch Structural Screws, 50 Screws per Package - 772691121370 : Amazon.co.uk: DIY & Tools
GRK RSS516312HP RSS HandyPak 5/16 by 3-1/2-Inch Structural Screws, 100 Screws per Package : Amazon.ca: Tools & Home Improvement
GRK – Fasteners & Deck Screws - DecksDirect
ITW GRK Fasteners 12217 RSS Rugged Structural Screws 5/16 Inch By 2-1/2 Inch Washer Head 100 Pack: Exterior Structural & Truss Head Screws (772691122179-1)