Overview Reviews Product Description Made of 1010 zinc plated steel this 1/4"-20 jack nut with sealer has been designed four mounting outside mirrors to body panels. Legs of nut expand as screw is driven providing a positive water-tight connection. Used with body bolt #245-610 May also be used with license plates Papco Automotive Catalog Product Videos Custom Field Box quantity 25 Size 1/4"-20 Product Reviews Write a Review Write a Review × Paulin 1/4"-20 Mirror Mounting "Jack" Nut 25 Pc. 239-960 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *