Hex bolts can be widely used in the home and office appliance, communication equipments, ship assembly and other machinery industry. Made of high quality 18-8 (304) stainless steel, provides strength and great protection from corrosions and tarnishing. Thread Diameter: 8mm; Thread Pitch: 1.25mm; Screw Length: 25mm (Head NOT Included). Package Included: 25 PCS hex head screws. Whenever you have a question, please feel free to contact us!