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Full Thread Wedge Anchor, 1/4 x 2-1/4 in. Size, 1/4 in. diameter, 2-1/4 in. length, 1/4-20 in. thread size, 1-1/4 in. thread length, 20 thread per inch, 1/4 in. drill size, Steel material, Zinc Plated Finish, 1/2 x 3-3/4 in. bolt size