Durable Insulating Plastic Covers and Metal Screws, 100 Pieces per Pack Product highlights Reliable insulation and protection: Each black plastic cover provides effective electrical insulation and sturdy protection for exposed connections, helping to extend component life. Secure wire fixation: The engineered slot holds wires firmly in place to minimize movement and abrasion, reducing the risk of premature wear and improving connection reliability. Robust fastening: Each unit includes a metal screw for strong, long lasting fastening that resists wear and maintains a tight hold over time. Value pack for routine work: 100 pieces per pack provide ample quantity for repairs, maintenance, or small installation projects. Key benefits and problem solving Prevents contact and wear: The insulating cover isolates terminals and conductors from accidental contact and reduces mechanical wear from vibration and rubbing. Simplifies installations: The slot design makes it faster to position and secure wires, lowering installation time and the need for frequent adjustments. Built to last: Combination of sturdy plastic housing and metal screw offers reliable performance in everyday electrical and wiring applications. Materials and performance Cover material: Black insulating plastic for strength and electrical isolation. Fastener: Metal screw for strength and durable fixation. Performance emphasis: Stable wire retention, reduced abrasion, improved longevity of wiring assemblies. Typical use scenarios Household electrical repairs: Replacing or protecting terminal covers on switches, junctions, and light fixtures. Automotive wiring maintenance: Securing and insulating wires in vehicle wiring looms and accessory installs. Workshop and equipment wiring: Organizing and protecting connections on machinery, control panels, and power supplies. What makes this product stand out Combines simple, effective insulation with a secure mechanical fastener. Large pack size supports multiple projects and routine maintenance without frequent repurchasing. Practical design focused on reducing abrasion and prolonging wire life while keeping installations neat and reliable.