1/4"-20 X 4" Machine Screws | Flat Head | Phillips Drive | Steel Black Oxide (500/Pkg.) Straight Shank or rails on vehicles

or rails on vehicles

Material: Stainless steel for superior corrosion resistance

these bolts deliver consistent performance across batches and applications

pair with the correct nut or tapped hole and use proper torque to achieve desired clamping force

Thread size: 1/2-20

1/4"-20 X 4" Machine Screws | Flat Head | Phillips Drive | Steel Black Oxide (500/Pkg.) Straight Shank or rails on vehiclesMachine Screws Phil Drive Flat Steel Black Oxide 1 4 20 x 4 in offer reliable, metal to metal fastening for a wide range of projects. The Phillips drive enables quick, tool friendly installation, while the steel body with a black oxide finish delivers durability and a sleek, low glare appearance for machinery, equipment, and general metalwork. Specifications Thread size: 1 4 20 (UNC) Length: 4 in Drive type: Phillips Material: Steel Finish: Black