- Fixes tile undelay tight to the floor eliminating movement and cracking of tiles
- Trim head with nibs for easier countersinking
- High-Low threads for fixing to timber and lightweight steel (0.55-0.75mm)
- #2 square drive (driver bit in each box; replacement bit model BIT2S)
The MTHG114SA underlay screw is designed for fast and secure underlayment to subfloor installations. Unlike nails, the MTHG Underlayment screw has an intricate thread pattern designed to prevent squeaking by holding underlayment tight to the subfloor and thus preventing pull-out.