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How Different Surface Treatments Impact the Performance of Screws

Update:27 Dec
When selecting the appropriate screws for your project, it's essential to understand how different surface treatments affect their performance. Some Gold Plated screws are designed with lubricated surfaces for easier driving while others come coated to protect against corrosion in outdoor settings.
Well-lubricated screws glide smoothly through wood, requiring less power to drive them in place and staying put more securely than untreated ones. Lubrication can be accomplished easily yourself using candle or beeswax rub, but many manufacturers offer pre-treated options with enhanced surface lubricity like drives with their proprietary dry coating designed to reduce friction without leaving residue and screws with their proprietary lubricant that makes them even more slippery than standard ones.
Zinc screws are among the most frequently used fasteners in construction, known for their durability and corrosion resistance. Some manufacturers employ electrochemical processes to enhance the lubricity of their zinc coating finish and ease driving by reducing friction between threads and screw heads.
Some manufacturers apply coatings to screws to improve the abutment's surface and increase preload achieved through tightening torque. Studies indicate that higher preload values provide greater screw stability; lower ones, however, increase its chances of loosening. In addition, tightening repetitions have an enormous influence on frictional losses between screw and abutment as well as loss of preload.
Outdoor projects demand fasteners that can withstand harsh weather conditions, and hot-dipped galvanized screws are an excellent choice because of their corrosion resistance even under moist conditions. Other corrosion-resistant fasteners include epoxyed and powder-coated screws that offer corrosion protection as well as matching colors that match most decking lumber species.