SODIAL(R) 5pcs Big Hole SMA Female Center Nut Bulkhead Crimp RG174 RG316 LMR100 Connector Item Name: SMA RF Connector Thread Diameter: 6mm/ 0.25"; Hole Diameter: 3mm/ 0.11" Total Size: 20 x 9mm/ 0.8" x 0.35"(L*Max.D) Material: Metal Alloy; Main Color: Gold Tone; Weight: 17g