Overview Reviews Product Description Spaenaur Master Catalog Product Videos Custom Field Package quantity 100 Product Reviews Write a Review Write a Review × Spaenaur Thread-Cutting Screw Pan Slot Head #4 X 5/16" Long Type 25 Low Carbon Steel Case Hardened Zinc Plated Ansi B18.6.4-1981 ST-676 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *