A glass-filled nylon auger fastener with a 1" head designed to secure insulation and single-ply membranes to gypsum and cementitious wood fiber. The Drill-Tec™ Polymer GypTec® Fastener is designed to secure insulation and single-ply membranes to gypsum and cementitious wood fiber (i.e., Insulrock, Permadeck, Tectum®, etc.).