PANSIAM Flat Head Countersunk Hi-Lo Concrete Screws #10 x 1-1/2" (Pack of 25 pcs)

PANSIAM Countersunk Flat Head Hi-Lo Concrete Screws #10 x 1-1/2" (Pack of 25 pcs)
This type of concrete screw differs from conventional screws, particularly with its Hi-Low dual-thread system, which features alternating high and low threads to tap into concrete and enhance holding power effectively, enabling installation without the need for plastic or steel anchors.The 1-1/2 inch (38 mm) length provides deeper embedment than the 1-1/4 inch size, making it ideal for applications requiring higher holding power. The countersunk flat head is designed to sit flush with the surface of the mounted material (such as wood or thin angle iron) for a neat appearance that doesn't obstruct other uses. Installation always requires pre-drilling a pilot hole in the concrete to the specified size before driving the screw in.

Specifications
- Direct fastening (Anchor-Free): No wall plugs required, saving time and installation costs
- High holding power: Hi-Low thread helps bite into concrete and increases fastening stability
- Optimal length: 1-1/2 inch length provides deeper and stronger embedment than shorter screws
- Flush finish: Countersunk head sits neatly flush with the surface of the fastened material
- Quick installation: Reduces installation steps (drill > drive to finish)

Applications & Usage
- Light framing installations: Fastening wood framing, metal studs, or thin angle iron to concrete walls
- Electrical/plumbing installations: Fastening pipe clamps, electrical boxes, or cable raceways
- Interior decoration: Fastening door/window frames, stair railings, or baseboards/moldings to walls, especially with relatively thick materials
- General work: Fastening steel plates, plastic sheets, or wood panels to concrete floors where high holding power is required