RUGGED AND DURABLE - SG TZH Hex bolt made of high-quality 18-8(304)Stainless Steel，which has higher corrosion resistance and anti-rust effect than ordinary bolt, longer service life, not easy to damage, more solid. Product Size - Thread Diameter: 1/4"; Thread Pitch: 1/20"; Screw Length: 1-1/2". Head Diameter: 0.437". Please check specfication by picture 2 WIDE RANGE OF APPLICATIONS - Hex bolt can be widely used in the home and office appliance, communication equipments, ship assembly , the mechanical industry and small repairs around shops, garages or home furniture fasteners. VALUE PACKAGING AND EASY TO USE - This Hex screw bolt package contains 20Pcs , They are ideal for use at home, in the office or at work. INTIMATE SERVICE - SG TZH focus on customer satisfaction, if you have any questions or are not satisfied, you can contact us by email, we will solve all your problems as soon as possible. 1