Pelmet Clip and Socket A useful pair of fittings for stiffening battens, hanging heavy picture frames, securing panels as well as fitting pelmets. The backing plate is our standard size so, if required, it can be routered in flush using a boss plate jig. The finish is black powder coated. Clip size: 68 x 65 x 13 mm. Socket: 68 x 40 x 10 mm. Fixings needed: 4 off No.8 or No.10 [4, 4.5 or 5 mm] csk wood screws for each part.