Everbilt 1/4 in.-20 TPI Zinc Rod Coupling Nuts 822251 - The Home Depot
Unique Bargains Female Thread Straight Rod Coupling Connector Pipe Fittings 1 BSP Gray - Bed Bath & Beyond - 18446715
10pcs M6 M8 M10 M12 Round Joint Nuts Threaded Rod Bar Stud Round Coupling Connector Nut Connect Two Threaded Parts - Nuts - AliExpress
Amazon.com: 20Pack 1/2 Inch PVC Nipple Male Thread Coupling Adapter Connector (Male x Male) 1/2" PVC NPT Male Thread Coupling Pipe Fitting for Thread plumbing Pipe, Home or Industrial Use, Schedule 40 :
Connector 1/4" X .312" 8-32 Threaded SS
Sigma ProConnex 1/2-in Zinc-plated Steel Threaded Coupling Conduit Fittings in the Conduit Fittings department at Lowes.com
MroMax 20Pcs M3x0.5mm Round Connector Nuts, 304 Stainless Steel Rod Coupling Nuts 8mm/0.31" Length Female Thread for Camera Pan, Lamp Bracket, Glass Folding Dining Table Silver: Amazon.com: Industrial & Scientific
DN15 DN20 Wholesaler Market Different Types Female Thread Brass Water Meter Coupling Connector - China Water Meter Fitting, Brass Fitting | Made-in-China.com