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Weld Screws " Projections Under Head

Weld Screws with projections under head are externally threaded with a unified thread pitch and a cylindrical, low profile head with two parallel surfaces. The bearing surface under the head has three dome-shaped weld projections. The projections are concentrically placed 120┬░ apart and form the welded joint with the steel plate. Because the projections are positioned under the head, a through-hole is required in the material onto which the screw is being welded. While this results in the screw head positioned on the external surface of the steel plate, it allows for flush mounting of mated components. Furthermore, the through-hole facilitates self aligning of the weld screw and eliminates the need for fixturing during the welding process. These weld screws are made from C1008-1010 or equivalent welding quality carbon steel in a plain finish to facilitate welding.

For technical specifications on projection weld screws and spot weld screws click here.

If you should happen to be looking for weld screws or other fasteners that are currently not listed as stock items on Aspen Fasteners, or in the event that we are out of stock, we will do our best to find the parts for you. All of the weld screws listed are unfinished welding grade plain steel and are standard stock items available for immediate same day free shipping.

All items are available in bulk quantities, but if smaller quantities are preferred, we would like to hear from you as we are often able to offer the same parts in smaller package quantities. If you require a quote for a specific fastener or weld screws listed or not, please call us at 1-800-479-0056 or email us at and one of our knowledgeable sales staff will help you with your needs.

The price of any fastener or weld screws listed on the site includes shipping to your destination. If you have any special shipping requirements (eg expedited/next day delivery), please let us know at the time of order placement and we will make the necessary arrangements. Discounts are available for larger quantity orders. Major credit cards are accepted.