1/2 x 4 Mushroom Spike Zinc Plated (25)

Tensile strength for diameters 1/4 to 1 inch is a minimum of 120

The 3/16 Alligator anchors feature shock and vibration resistance

Drop-in anchors are internally-threaded

Designed to be used with like-material machine screws and bolts

5/16 x 7 Square Pan Gutter Screw Brown (10) 1-14 Grade 8 Hex Cap Screws Yellow Zinc Plated 1/2 x 4 Mushroom Spike5 16 x 7 Square Pan Gutter Screw Brown (10) . GutterScrew enables you to replace old popping gutter spikes once and for all. Over sized threads are wider than gutter spikes, so they fill old worn spike holes tightly. No water gets into your house. This heavy duty fastener provides unmatched holding power even in old spike holes. Over sized thread diameter tightly fills the existing spike holes for better holding strength and a watertight fit #3 square