If you've got a screw loose, Senco Brands (formerly SENCO Products) has got the fastener. The company makes air-, battery-, and gas-powered nailers, staplers, and screw guns, as well as the nails, staples, screws, and other specialty fasteners that those devices use. Its products are sold in more than 40 countries by major retailers and building materials dealers, including Fastenal, Home...