Catalog Shopping Cart (0) Quotes (0) All Categories > Roofing Material > Fasteners & Plates > Purlin Fasteners > Trufast Purlin Fasteners Trufast Purlin Fasteners Request Information Trufast Purlin Fasteners urlin-fasteners-trufast-purlin-fasteners-1 Purlin Fasteners (10) Designed to drill into structural steel purlins. Available Sizes: •1-3/8" •2-3/4" •3-3/4" •4-3/4" •5-3/4" •6-3/4" •7" •7-3/4" •8" •8-3/4" /Asset/Trufast purlin.png