#1 square drive trim head

The Spike® anchor is a patented

7/8-9 x 4 1/2 Hex Cap Screw SS 316 (A4)

3 1/2" Flat Washer SS 18-8 (A2)

3/8 x 6 Titen HD Concrete Anchor Zinc Plated (50)

(SPM™) SNAPSKRU® Mini Anchor for 3/8-5/8 Drywall [No Screws] (100) Wedge Anchors Mechanically Galvanized #1 square drive trim head(SPM) SNAPSKRU Mini Anchor for 3 8 5 8 Drywall (No Screws) . SNAPSKRU Mini anchors lock symmetrically on the wall and the ceiling for truly secure fastening. When activated with a screw, the SNAPSKRU anchor opens with an audible "pop," locking the anchor on the wall. The drywall gypsum and its paper are kept in compression and thereby immediately reinforced, providing much greater holding power than other self drilling anchors that are just a small