Use a 3/8" drill bit to drill a hole in the base material (Concrete only) Torque. Important Reminder: For concrete use only. Hassle - Free Setup: Each 3/8" anchor set (lengths: 3/8"x3 - 1/2", 3/8"x3 - 3/4", 3/8"x4 - 1/4", 3/8"x4 - 3/4") includes pre - installed nut and washer, streamlining installation for efficient wall - anchor needs.
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