3/8″-16 X 1-1/4″ Machine Screws Indented Hex Head Slotted Drive Steel Zinc Plated (500/Pkg.) Hassle-Free Returns

Machine Screws Slotted Indented Hex Washer Zinc Plated 3/8-16 X 1 1/4 — a durable fastener designed for metal-to-metal joining with dependable strength and corrosion resistance.

These machine screws feature a slotted drive for versatile installation, an indented hex washer head for a clean, flush appearance, and a zinc-plated finish that protects against rust in demanding environments. With 3/8-16 UNC threads and a length of 1 1/4 inches, they’re ideal for machinery, electrical enclosures, cabinet assemblies, and equipment housings.

Key features

Drive type: Slotted

Head style: Indented hex washer

Thread size: 3/8-16 UNC

Length: 1 1/4 in

Material / Finish: Zinc-plated steel

Corrosion resistance: Zinc plating for durable protection

Applications: Machinery, automotive, electrical panels, equipment housings

Why choose zinc-plated machine screws? They combine robust strength with a dependable, rust-resistant finish suitable for indoor and sheltered outdoor environments. The slotted drive makes installation straightforward, while the indented hex washer head provides a low-profile fit that helps prevent loosening under vibration when paired with the right nut or tapped hole.

For projects requiring a reliable, standard-size fastener, this 3/8-16 X 1 1/4 machine screw is a practical choice that delivers consistent performance across many metal assemblies.