Zinc plated steel threaded inserts.M5 Splined Threaded Insert (Rivet Nut) - Pack of 50• Splined zinc plated threaded inserts.• Model No. TISM5Model No: TISM5:Brand: Sealey:Grip Range: 0.5-2.5mm:Nett Weight: 0.00kg:Pack Qty: 50:Thread Size: M5 x 0.8mm:Type: Splined:PTDSEATISM5