InstructionSpecially designed to keep PCB at a consistent height and prevent it from bending, twisting, and short-circuiting. Advantage: The standoff screws are made of stainless steel, which is rust-free, durable, stable, and reusable compared with plastic. Uxcell M2.5x20mm+4mm Male-Female Hex Standoff Screws, Stainless Steel... Our standoff screws are widely used in computers, computer cases, circuit board assembly and other electronic fields. Instruction: Specially designed to keep PCB at a consistent height and prevent it from bending, twisting, and short-circuiting. PATIKIL 2.5 ale Feale Nylon Hex Spacer Standoff Kit, 240Pcs Monitor Mount Screws Uxcell M3x18mm+4mm Male-Female Hex Standoff Screws, Stainless Steel PCB Standoffs For Motherboards 20 Pack 2692099c 4592 49c7 A05a 513ef852d811.9f6abc29f058c9d009915f8d5e765ff7 M3x30mm Screws Application: Our standoff screws are widely used in computers, computer cases, circuit board assembly and other electronic fields. This Bike wheel lights has the function of vibration sensing. After the bicycle is stationary for 1 minutes, the bike wheel lights will automatically turn off, and when the bicycle moves, It will automatically turn on Specification : Material: 304 Stainless Steel; Thread: M2.5; Thread Pitch: 0.45mm/0.016; Stud length: 10mm/0.39; Screw length: 4mm/0.16; Overall Size: 14mm x 4.9mm/0.55 x 0.19 (L*W); Packing List:20pcs 10mm+4mm Standoffs