Zinc Nailon (mushroom head) anchors are low cost anchors for light-duty applications under static loads. Zinc Nailon anchor is available with carbon and stainless steel pins. The pin and head configuration make this anchor tamper-resistant. 1/4" x 3". Not for use in overhead applications. These anchors are not recommended for eccentric tension (prying) loading. Capacity can be greatly reduced in such applications.