UCAN U-DRILLS self drilling screws are engineered for speed, consistency and strength. They are cold formed with rolled thread for superior point strength and fast drilling performance in steel base materials up to 0.50 inch thick. The screws are available in a variety of head styles, thread lengths and drill points from No. 6 to 1/4 in size. The U-DRILLS screws meet SAE J78-1998 standard requirements.