Electrical sheet metal screws

Shop for Pan Head - Square Drive from Platt Electric Supply

The Cully™ brand is one of the broadest and most recognized line of fasteners, anchors, tools, paints, chemicals, and safety products in the electrical industry. From sheet metal screws to concrete anchors, Cully™ provides a full basket of top-quality products.

Sheet metal screws must not be used to connect grounding or bonding conductors to metal enclosures since threads on sheet metal screws are too far apart to provide a low-impedance path from the screw to the enclosure. Most metal boxes have at least one hole in the back of the box that is tapped for a 10-32 grounding screw.

Sheet metal screws: Images credits: MFG Solutions; BelMetric. Sheet metal screws have a very sharp thread for easy installment of metal to wood or fiberglass. Shoulder screws: Image credit: Digi-Key. Visit GlobalSpec's Shoulder Screw Selection Guide and Specification Filter for tutorial information. Thumb screws: Image credit: Unicorp Inc. The Cully™ brand is one of the broadest and most recognized line of fasteners, anchors, tools, paints, chemicals, and safety products in the electrical industry. From sheet metal screws to concrete anchors, Cully™ provides a full basket of top-quality products. Sheet metal screws. Pan head, phillips drive, type A, hardened, zinc plated. Sold in bulk.. Priced per 100 pieces. Some popular sizes in Pan combo phillips and slotted drive are sold Section 250.8 has been revised by deleting the specific prohibition of sheet metal screws since there are many other types of screws that also are prohibited, such as drywall screws, self--tapping tech screws with less than two threads into an enclosure and similar screws that may not provide an acceptable ground return path. Screw self-tapping screws or sheet metal screws through the strap and into a structural member of the metal building. Step 7 Attach a metal conduit strap on the conduit and onto the building within 3 feet of each box and every 10 feet horizontally or vertically.