Feature: 1. GOOD QUALITY 304 STAINLESS STEEL: These nuts are made of good quality 304 stainless steel, wear resistant, corrosion resistant, and rust resistant 2. FOR INDOOR, OUTDOOR OR HUMID ENVIRONMENT: Suitable for indoor, outdoor or humid environment, the product implementation standard is DIN1587 3. EASY TO INSTALL OR DISASSEMBLE: Standard hex design, the opposite side length of the lower nut is 11mm, the height is 12mm, easy to install or disassemble 4. FOR MECHANICAL EQUIPMENT: Suitable for mechanical equipment, electronic equipment, communication equipment, hardware lighting, building bridges, furniture decoration, etc. 5. A VARIETY OF MODELS: The kit has a variety of models to choose from, covering the most commonly used models, and can meet almost all your needs Specification: Item Type: Acorn Hex Cap Nuts Model: M3; M4; M5; M6; M8; M10; M12 Material: 304 Stainless steel Standard: DIN1587 Lower Nut Size: Opposite Side Length: Approx. 11mm / 0.43in, Height: Approx. 12mm / 0.47in Size: Model M3 M4 M5 M6 M8 M10 M12 Thread diameter 3mm / 0.12in 4mm / 0.16in 5mm / 0.2in 6mm / 0.24in 8mm / 0.31in 10mm / 0.39in 12mm / 0.47in Pitch 0.5mm / 0.02in 0.7mm / 0.028in 0.8mm / 0.031in 1.0mm / 0.04in 1.25mm / 0.05in 1.50mm / 0.06in 1.75mm / 0.07in Nut height 7mm / 0.28in 8mm / 0.31in 10mm / 0.39in 12mm / 0.47in 15mm / 0.59in 18mm / 0.71in 22mm / 0.87in Wrench caliber 5.5mm / 0.22in 7mm / 0.28in 8mm / 0.31in 10mm / 0.39in 13mm / 0.51in 17mm / 0.67in 19mm / 0.75in . Package List: 60 x M3 Nut80 x M4 Nut50 x M5 Nut40 x M6 Nut10 x M8 Nut5 x M10 Nut4 x M12 Nut