Description: 【Complete M8 Hardware Set】: This 15 piece set includes M8x20mm stainless steel hex screws, self locking nuts, and flat washers providing everything needed for secure fastening applications. Ideal for DIY projects and professional repairs 【Stainless Steel】: Crafted from quality stainless steel that withstands outdoor exposure, moisture, and temperature variations without rusting or corroding. The sturdy material maintains its integrity in harsh environments. Great for marine applications and outdoor equipment 【Self Locking Nut Security】: Features integrated locking inserts that prevent loosening from vibration or movement, ensuring permanent fastening security. The locking mechanism maintains tension without requiring additional tools. No more lost nuts or compromised connections 【Hexagonal Head Design】: The standard hex head design provides six point contact for maximum torque application with common wrenches. The precise machining ensures great tool fit without stripping. Great for high torque applications and limited space situations 【Versatile Application Use】: Compatible for various projects including furniture assembly, automotive repairs, machinery maintenance, and outdoor structures. The M8 size offers ideal strength for medium duty fastening requirements. Ideal for homeowners and professional mechanics Specification: Material: Stainless Steel Size Chart: 1.3cmx1.3cmx2.54cm/0.51inchx0.51inchx1.00inch Package Includes: 15 Hexagonal Screws Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.