The stainless steel TecNec 38B Flat Head Screws with Nuts & Washers Kit from B&H features a 100-pack of TecNec 3/8" flat-head (countersunk) screws and a 100-pack of 4-40 nuts with star washers. The kit can be used for mounting all chassis connectors in panels and plates. Flat head (countersunk) screws are often used for front-panel mounting.
TecNec SCREW-38S 4-40 x 3/8" Flat Head Screws for Chassis-Mount Connectors (100-Pack, Stainless Steel)
These SCREW-38S 4-40 x 3/8" Flat Head Screws from TecNec are for mounting chassis-mount connectors on panels and plates. They feature a countersunk head design, ideal for mounting connectors on the front of panels.
TecNec NUT-CMT 440 Nut with Star Washer (100-Pack)
The NUT-CMT from TecNec comprises a pack of 100 4-40 thread hardware nuts with their included star washers. These can be used for mounting compatible-sized chassis connectors in panels and plates.