A flat surface door bolt is a great way to add extra security to your doors and gates. Size: 300 x 41mm. WPS300 bolts are made of cold rolled metal sheet with bilaterally applied galvanized coating with weight no less than 275g/m2 and thickness of about 20μm. Moreover, the products are powder coated which ensures increased resistance to corrosion. Elements protected in such manners can be used in any place exposed periodically to rain and snow.