Unverified90% confidenceCautionTime unknown
免打孔（3M胶粘贴）防盗链仅适合平整光滑的金属或烤漆门面，抗拉不超过30kg，本质是防误开提示器；真正的防盗需求必须选螺丝固定式，胶粘式一撞即脱
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Long-term
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Unverified免打孔款依赖3M胶或螺丝顶紧，只能承受横向拉力（防推拉），不能承受垂直撬力；防盗防撬场景必须选打孔固定的金属锁扣84% similarUnverified免打孔（3M胶粘贴式）限位锁适合租房或铝合金细边框窗，但承重普遍＜30kg拉力，不适合作为防坠核心防护；打孔螺丝固定款拉力可达100kg以上，防护性远高于粘贴款84% similarUnverified免打孔（3M胶粘贴）安装方便但锁定强度依赖胶面附着力，铝合金窗框光滑面易脱落；防坠落等安全场景应优先选打孔螺丝固定型83% similarUnverified免打孔粘贴式辅助锁的3M胶承重通常<50kg外拉力，仅适合防止内开门被推开，无法抵御外部暴力破门82% similarUnverified粘贴式牢固但可能残胶，螺钉式牢固却需在门上打孔——租房不建议螺钉安装，优先选3M背胶或可拆卸卡扣式，避免破坏门体导致押金纠纷81% similar
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