50pcs Black Nylon Hex Socket Head Bolt Caps, Dustproof, M4-M12 Dome Covers

Enhance and protect the longevity of your bolts with this set of 50 black nylon hex socket head bolt caps. Designed to shield bolts from dust and moisture, these durable dome covers offer a snug fit for various bolt sizes ranging from M4 to M12. Made from high-quality nylon, they ensure resilience against wear and tear, providing an attractive and functional finish to any project. Ideal for both indoor and outdoor applications, these dustproof caps are perfect for maintaining a clean and professional look in mechanical, industrial, or DIY settings. Standard No.: GB923 Surface treatment: True Color Product Grade: Class B Strength level: Level 4 Manufacture country: China Instructions included: No