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Home / Screws / 304 Stainless Steel Phillips Flat Head Screw and Lock Nut Set, Complete Assortment of Countersunk Screws, Nuts, and Washers

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Screws
Origin -
Material 304 Stainless Steel
Head Style Flat Head (Countersunk)
Drive Type Phillips
Finish Polished Silver
Thread Type Coarse Thread
Included Components Screws, Lock Nuts, Flat Washers
Corrosion Resistance High (Suitable for Outdoor Use)
Package Type Compartmentalized Storage Box
Total Piece Count 600 Pieces
Application General Hardware, Marine, Automotive

6 reviews

A

Anonymous

Mar 22, 2026

Rating: 5/5

Perfect for marine projects

I needed hardware that could withstand saltwater exposure for my boat trailer. These 304 stainless screws are holding up perfectly after three months. Highly recommended for outdoor use.

A

Anonymous

Mar 18, 2026

Rating: 5/5

Exactly what I needed

Bought this for assembling furniture and general home repairs. The inclusion of lock nuts is a huge plus. Everything fits together smoothly without cross-threading.

A

Anonymous

Mar 14, 2026

Rating: 4/5

Great value for the price

Good assortment of sizes. The lock nuts grip well and don't slip easily. I took off one star because a few of the smaller washers were slightly bent in the box, but overall a solid purchase.

A

Anonymous

Mar 14, 2026

Rating: 5/5

Excellent quality and organization

This set is fantastic. The 304 stainless steel feels very durable, and the case keeps everything neatly sorted. I used these for a deck repair project, and they haven't shown any signs of rust yet.

A

Anonymous

Mar 11, 2026

Rating: 5/5

Well stocked kit

As a DIY enthusiast, having this variety on hand saves me multiple trips to the hardware store. The Phillips heads are deep and don't strip easily when driving them in.

A

Anonymous

Mar 02, 2026

Rating: 4/5

Solid hardware set

The quality is consistent across all sizes. The storage box latch is a bit flimsy, but the contents are great. The flat heads sit flush as expected.

5 FAQ

Q: Are the threads metric or imperial?

A: This specific assortment features imperial (UNC) threads, which are standard for most hardware applications in the US and UK.

Q: Are these screws magnetic?

A: 304 stainless steel is generally non-magnetic or only slightly magnetic due to the manufacturing process. They will not stick strongly to a magnet like standard steel screws.

Q: Does the box have dividers to keep sizes separate?

A: Yes, the kit comes in a compartmentalized plastic box with adjustable dividers to keep the different sizes of screws, nuts, and washers organized.

Q: What is the range of screw lengths included in this set?

A: The assortment typically includes lengths ranging from 1/4 inch up to 2 inches, covering most common household and light industrial applications.

Q: Can these be used for aluminum framing?

A: Yes, 304 stainless steel is compatible with aluminum and helps prevent galvanic corrosion better than plain steel, though using an anti-seize compound is always good practice.

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