3/8″-16 X 4″ Machine Screws Indented Hex Head Slotted Drive Steel Zinc Plated (200/Pkg.) Get Yours

Secure, durable fastenings for metal-to-metal assembly—our Machine Screws Slotted Indented Hex Washer Zinc Plated 3/8-16 x 4 are built to perform in demanding applications. With a slotted drive, an indented hex washer head for load distribution and a zinc-plated finish for corrosion resistance, these screws deliver reliable service in equipment, enclosures, and machinery.

These 3/8-16 machine screws feature a 4-inch length and a coarse thread for fast, secure fastening across a range of metals.

Drive: Slotted, compatible with common hand tools and automated assembly

Head: Indented hex washer head for a flush finish and better load distribution

Finish: Zinc plated for corrosion resistance in industrial environments

Thread: Coarse 3/8-16 for strong holding power

Length: 4 inches to accommodate thicker materials

Type: Machine screw designed for metal-to-metal fastening

Specifications

Diameter: 3/8 in

Threads per inch: 16 (coarse)

Length: 4 in

Head type: Slotted Indented Hex Washer

Finish: Zinc Plated

Drive: Slotted

Type: Machine Screw

Applications

Ideal for metal-to-metal assemblies in equipment, panels, brackets, and machinery. The zinc plating provides durability in harsh environments, while the 3/8-16 size delivers strong, reliable fastening for thicker materials and robust projects.