M4 x 16.8mm Flat Head, Spyder Split Body Rivet Nuts (Jack) BZP, Grip Range: 0.1mm - 5mm

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M4 Spyder Split Body Rivet Nuts (Jack) M4 split body rivet nut (Jack), also known as a Spyder Nut because of its spider like design when installed. A versatile threaded insert nut for brittle, thin, or soft, materials. The split body rivet nut is placed into a pre-drilled hole and when tightened the body of the Jack Nut collapses on the blind side of the material forming four splayed legs. These collapsed legs on the inside / blind side of the materials surface allow for a secure hold while creating a reusable threaded insert. Used to install a threaded insert into thin material and a popular item used by DIY enthusiasts and professionals alike across numerous sectors. M4 Spyder Split Body Rivet Nut Specifications: Thread diameter (TD): M4 - 4mm Body diameter (BD): 7.9mm Flange diameter (FD): 12.2mm Head height (HH): 1.6mm Length (L): 16.8mm Grip depth (GD): 0.1 - 5mm Head type: Flat Drill hole: 8mm Quantities start from just one to as many as you require with bulk price discounts. Part of a growing range of spyder split body rivet nuts (Jack) from Fusion Fixings. Show more