Fasteners | Screws:

Self-drilling Screw (TEK point)

Roofing Screw

Concrete Screw (Masonry Screw)

Self-tapping Screw

Drywall Screw

Wood Screw

Tamper-proof screw

Welded screw (carbon steel welded with stainless steel)

Nylon Plug & Screw Assembly (Nylon Nail Anchor)

Special, Custom-made Screw