#12 x 4 Sheet Metal Screws 100PCS Hex Washer Head - Durable

In this review the focus is on the #12 x 4 sheet metal screws in a 100-piece pack, aimed at homeowners, handymen and light industrial users who need robust fasteners for metal, wood and plastic. The single biggest reason to consider these screws is their construction from 410 stainless steel, which gives noticeably better corrosion resistance and longevity than ordinary plated screws while still being magnetic; that balance of durability and practicality is central to this review.

Key Features

• Material: 410 stainless steel construction provides higher corrosion resistance and a longer service life than common screws, making them suitable for repeated use in exposed areas.
• Head design: The hex washer head offers a secure drive and reduces slipping during installation, helping fast, consistent seating of the screw.
• Self-tapping threads: Precision threads are cut to work through metal, wood and plastic so you can use the same screw for a range of repair and assembly tasks.
• Size and quantity: The #12 diameter and 4' length in a 100PCS pack supplies enough fasteners for several projects and small installs without frequent reordering.
• Finish: Black oxide appearance offers a darker, less reflective finish that can be preferable for visible fixings and floor or furniture work.

Who It's For

These screws are well suited to homeowners, small shop mechanics and installers who need a reliable, general-purpose self-tapping fastener for corrugated metal, door hardware, furniture repair and light mechanical work. The 410 stainless material makes them a good fit where occasional moisture exposure or outdoor use is likely.

People who need fully non-magnetic fasteners or stainless with the highest corrosion resistance (such as marine-grade 316) should look elsewhere; these screws are 410 stainless and therefore retain some magnetism. Also, heavy structural applications that require specialized fasteners would be better served by purpose-designed bolts and anchors.

Pros & Cons

Pros

• Durable 410 stainless steel construction improves rust resistance and extends working life.
• Hex washer head reduces slippage and helps achieve a flush, secure fit quickly.
• Versatile self-tapping threads handle metal, wood and plastic for general repairs and installations.
• Value pack of 100 pieces reduces trips to the hardware store for common projects.

Cons

• Being 410 stainless, the screws are still magnetic, which may be undesirable for some corrosion-critical uses.
• Some buyers report mixed impressions of quality, so inspection before critical installs is advised.

Specifications

Our Verdict

For general-purpose repairs, light mechanical work and installations where a tough, corrosion-resistant self-tapping screw is needed, this 100-piece pack represents good value. The 410 stainless construction and hex washer head combine to deliver reliable holding power and longer life than ordinary screws, though customers seeking fully non-magnetic or marine-grade corrosion resistance should choose a different alloy.

Frequently Asked Questions

Are these screws magnetic?
Yes, they are made from 410 stainless steel and will be magnetic.

Can they be used in metal roofing or corrugated tin?
Yes, customers report they hold corrugated tin effectively thanks to the precision self-tapping threads and sturdy head.

How many screws are included?
The pack contains 100 pieces of #12 x 4' hex washer head self-tapping screws.