585 Pcs M4 Screws Set, Countersunk Bolts and Nuts, Flat Head Machine Screw Nut a

Cross Countersunk Screws Bolts and Nuts Set: Flat head screw/countersunk screws design, suitable for small areas where the head needs to be flush or below the surface. Deep and clear threads ensure a firm fixation and are not easy to deform and slide during use.

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