The Original Robertson Flat Head #8 Robertson Wood Screws / Lubricized® (BULK)

Single Lead Thread (LO-ROOT®) - Calgary Fasteners & Tools

Robertson 4010FZ #4 x 5/8 Flat Head Zinc Plated Wood Screw - Zinc

Robertson 16064FRZR #16 x 4 Flat Head Zinc Plated Wood Screw - Square Drive at Edmonton Fasteners and Tools Ltd.

12 Pan Head Square Drive Sheet Metal Tapping Screws Zinc

Wood screws - Paul Rocheleau Inc.

ROBERTSON #8 x 1-3/4 Flat head with nibs Recex 2/3 threaded Aster®

Robertson Flat-Head Lo-Root Screws - Lee Valley Tools

Robertson Drive Screws: Flathead, #8, 2 inch

8 x 1 inch Flat Head Square Drive Wood Screw - Brass at Edmonton Fasteners and Tools Ltd.

Robertson Drive Screws: Flathead, #8, 2-1/2 inch