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Home / Screws / 304 Stainless Steel Cross Recessed Countersunk Screw Lock Nut Set with Washers Assortment M2 M3 M4 M5 M6 M8

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Screws
Origin -
Material 304 Stainless Steel
Head Style Countersunk Flat Head
Drive Type Cross Recessed (Phillips)
Included Sizes M2, M3, M4, M5, M6, M8
Thread Type Metric Coarse Thread
Finish Polished Silver
Corrosion Resistance High (Suitable for Indoor/Outdoor)
Package Contents Screws, Lock Nuts, and Flat Washers
Storage Case Compartmentalized Plastic Organizer Box
Application General Machinery, Electronics, and DIY Projects

6 reviews

A

Anonymous

Mar 28, 2026

Rating: 4/5

Good value, minor packaging issue

The screws and nuts are great quality and fit perfectly. One of the dividers in the plastic box arrived cracked, but the hardware itself was undamaged. Would buy again just for the fasteners.

A

Anonymous

Mar 25, 2026

Rating: 5/5

Excellent assortment for general repairs

This kit has everything I needed for my home workshop. The stainless steel quality is top-notch, and the organizer box keeps all the sizes neatly separated. Highly recommended for anyone doing mixed metric projects.

A

Anonymous

Mar 24, 2026

Rating: 5/5

Rust resistant and durable

Used these for an outdoor garden project. After three months of exposure to rain, there is absolutely no sign of rust. The 304 grade steel really makes a difference.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Perfect for electronics enclosures

I use these M3 and M4 sizes frequently for mounting circuit boards. The countersunk heads sit flush exactly as they should. No stripping issues with the Phillips drive either.

A

Anonymous

Mar 03, 2026

Rating: 4/5

Solid set, wish it had more M6

Great variety pack. My only critique is that the count for M6 bolts is a bit low compared to the smaller sizes if you are working on heavier machinery. Otherwise, excellent product.

A

Anonymous

Mar 02, 2026

Rating: 5/5

Must-have for DIY enthusiasts

Having washers, nuts, and screws all in one matching set saves so much time. The threads are clean and precise. This is now a staple in my toolbox.

5 FAQ

Q: What tool do I need to install these?

A: Since these feature a cross recessed head, you will need a standard Phillips head screwdriver or a Phillips bit for your power drill.

Q: Are these screws compatible with aluminum profiles?

A: Yes, these 304 stainless steel screws are commonly used with aluminum T-slot profiles and frames without causing galvanic corrosion in standard environments.

Q: Does this set include hex keys?

A: No, this set includes only cross recessed (Phillips) screws, lock nuts, and washers. Hex keys are not required for installation nor included in the package.

Q: Can these be used in marine environments?

A: While 304 stainless steel offers good corrosion resistance, for direct saltwater immersion or harsh marine coastal areas, we recommend 316 grade stainless steel for maximum longevity.

Q: Is the storage box stackable?

A: The included organizer box has a flat lid but does not feature interlocking stacking latches. It is designed primarily for compartmentalized storage within a drawer or shelf.

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