ELCO UltraCon Concrete Screws: 5/16 x 4, Hex Head with Oversized Washer, Silver Stalgard Finish, Case of 500

The Elco UltraCon (Tapcon concrete silver screws) masonry fastening system offers optimal performance in concrete, brick or hollow block whether anchoring electrical boxes, clips, wood headers, plywood, furring strips, insulation, etc. Cold formed, carbon steel anchors, precision-cut carbide drill bits and high-quality installation tools all work together to provide excellent pull-out and shear values. UltraCon screws feature nail points and high-low threads with v-notches to ease installation in concrete brick or block. Each carbon steel screw is coated with Stalgard® finish to provide superior corrosion resistance: no red rust or other base metal corrosion even after 800 hours of 5% neutral salt spray exposure (ASTM B117). Formerly sold as Tapcon® Screws for 26 years – Now as UltraCon Approvals: Current Miami-Dade, Florida NOA number available upon request. Made in the U.S.A. 

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.