#8 x 3ft Sheet Metal Screws 500PCS Truss Head Black Oxide - Durable

In this review of the #8 x 3' Sheet Metal Screws 500PCS by SG TZH the bottom line is simple: this is a value-oriented bulk pack for general repairs and projects that need long screws with good corrosion resistance. The reviewer found the main reason to buy is the combination of a large 500 piece count and the use of 410 stainless steel, which offers better rust resistance than ordinary steel and makes these screws suitable for outdoor and workshop use when strength and longevity matter.

Key Features

• Material: Made from 410 stainless steel, these screws offer improved corrosion resistance and longer service life than basic steel fasteners.
• Size and Head: #8 diameter and 3' length with a truss head design helps spread load and sit neatly on surfaces where a low profile is desired.
• Thread and Tap: Precision threads and self-tapping design allow the screws to pass through plastics, wood and thin metal without pre-tapping in many cases.
• Finish: Black oxide coating provides an attractive dark appearance and additional surface protection for visible applications.
• Count and Value: The 500PCS package meets frequent or large projects and reduces the need to reorder small quantities.
• Drive Design: The cross groove is well-machined to resist slipping and reduce cam-out during installation.

Who It's For

These screws are aimed at homeowners, handymen and small shop owners who often work on door hardware, furniture repairs, and floor or panel fixing where longer #8 screws are required. The bulk count and robust threads suit those who do repeat installations or maintain multiple fixtures.

Those needing automotive-grade 316 stainless or fully non-magnetic fasteners should look elsewhere; 410 stainless is magnetic and while corrosion resistant for many uses, it is not the highest-grade marine alloy. Also, precision industrial assemblies requiring exact, certified material traceability may need a different SKU.

Pros & Cons

Pros

• High piece count provides excellent value for projects and repairs.
• 410 stainless steel construction gives better rust resistance than ordinary screws.
• Truss head and well-machined cross groove make installation cleaner and reduce slipping.
• Precision threads work well across wood, plastic and thin metal in many applications.

Cons

• 410 stainless is magnetic and not the highest corrosion alloy for harsh marine environments.
• Some users report mixed durability experiences, with a few noting breakage under heavy torque.

Specifications

Brand	SG TZH
Material	410 stainless steel
Finish	Black oxide
Size	#8 x 3' length
Head Type	Truss head with cross groove drive
Quantity	500 PCS

Our Verdict

For general home, garage and light commercial use these #8 x 3' truss head screws are a practical buy because they pair a large 500PCS pack with 410 stainless steel construction and a useful black finish. They deliver good value for routine fastening tasks, though buyers who need non-magnetic or higher grade marine corrosion resistance should consider alternate stainless grades.

Frequently Asked Questions

Are these screws magnetic?
Yes, because they are made from 410 stainless steel they remain magnetic.

Can these screws be used outdoors?
Yes, the 410 stainless and black oxide finish give reasonable rust resistance for many outdoor projects, though not as resistant as higher-grade marine stainless.

Do these screws need pre-drilling?
Their self-tapping threads often allow installation without pre-drilling in wood and thin metal, but pilot holes are recommended for harder materials or precise alignments.