Affordable 3/8″-16 X 4″ Machine Screws Flat Head Slotted Drive Steel Zinc Plated (300/Pkg.)
Original price was: $243.80.$102.40Current price is: $102.40.
For orders under $150.00, a shipping fee of $12.99 applies.
Engineered for durability and reliability, these Machine Screws Slotted Flat Steel Zinc 3/8-16X4 deliver secure, high-strength fastenings in a wide range of applications. The zinc plating provides corrosion resistance, making them ideal for metal-to-metal assemblies in machinery, automotive, and equipment projects.
Designed for a slotted drive and flat steel body, these screws feature a 3/8-16 thread and measure 4 inches in length, ensuring compatibility with tapped holes and nuts designed for UNC threads.
Key features
Thread size: 3/8-16 UNC
Length: 4 inches
Material: Steel
Finish: Zinc-plated for corrosion resistance
Drive type: Slotted
Whether mounting panels, securing machinery components, or assembling equipment, these machine screws provide strong, dependable performance. For best results, use with matching nuts or a pre-tapped hole that matches the 3/8-16 thread specification.





