A flange nut supplies a constructed-in washer (flange) that distributes the clamping load above a broader spot than a daily lock nut. The design will not need a flat washer and is also the higher choice for an oversized or slotted hole. Crystal distinct solutions for shielding your switches from https://highspeedenergyceilingfan65307.isblog.net/details-fiction-and-flange-nut-45428913