Features: 1.Application: Bed rail T slot nuts kit is specially designed, 3/8in?16 tapped hole diameter, perfect replacement for Tacoma Tundra trailer pickup truck SUV. 2.Multi Purpose: Bed rail T slot nuts are ideal for mounting garden equipment racks, fire extinguishers, cleats, tie downs, D rings, bike racks and more. 3.Size: Base dimensions is 1?1/4 x 7/8 x 5/16in (Length x Width x Height). Protrusion dimensions is about 1?1/4 x 9/16 (table slot) x 5/16 (Length x Width x Height). The overall height is 5/8in. 4. Material: Made of premium stainless steel material, anti rust, wearproof, sturdy and durable, can be used in acid, alkali and humid environments. 5.Quantity: The package includes 4pcs bed rail T slot nuts, 4pcs bed rail screws, exquisite and careful workmanship, , perfect mounting accessories. Specification: Item Type: Bed Rails T Slot Nut Screw Kit Material: Stainless steel Color: Silver Fitment: Replacement for Tacoma Replacement for Tundra Fit for trailer, pickup truck, SUV Base Size: Length: 1-1/4in Width: 7/8in Height: 5/16in Protrusion Size: Length:1-1/4in Width: 9/16in (table Slot) Height: 5/16in Total Height: 5/8in