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Home / Screws / 304 Stainless Steel Cross Countersunk Head Screws Anti-Loosening Nut Set Complete Flat Head Screws Nuts Washers Combination Pack

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Screws
Origin -
Material 304 Stainless Steel
Head Type Cross Countersunk (Flat Head)
Drive Type Phillips (Cross)
Feature Anti-Loosening Design
Package Contents Screws, Nuts, and Washers
Finish Polished Silver
Corrosion Resistance High (Suitable for Outdoor Use)
Application Woodworking, Machinery, Electronics
Thread Type Metric Coarse Thread
Sales Unit Wholesale Bulk Pack

6 reviews

A

Anonymous

Mar 28, 2026

Rating: 4/5

Solid construction

The steel feels substantial and the threading is clean. Installation was smooth. Only minor issue was the packaging was slightly damaged during shipping, but the contents were fine.

A

Anonymous

Mar 25, 2026

Rating: 5/5

Excellent quality for bulk projects

Ordered this set for a large fencing project. The 304 stainless steel holds up well against the elements, and the anti-loosening nuts actually work as advertised. Great value for the quantity.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Reliable hardware

As a contractor, I go through a lot of fasteners. This wholesale pack is cost-effective and the quality is consistent. The anti-loosening feature prevents callbacks for tightened screws.

A

Anonymous

Mar 12, 2026

Rating: 5/5

Great for DIY furniture

Built several outdoor benches with these. They look professional and the combination of washers and nuts made assembly very secure. Will definitely buy again for future projects.

A

Anonymous

Mar 12, 2026

Rating: 5/5

Perfect for marine repairs

Used these on my boat deck. No rust after three months of saltwater exposure. The flat head sits flush perfectly, which was critical for safety. Highly recommend for any marine application.

A

Anonymous

Mar 01, 2026

Rating: 4/5

Good variety pack

Having the screws, nuts, and washers all in one box saved me a lot of time. The heads are well-machined and the Phillips drive doesn't strip easily. One star off because the assortment could use more mid-size options.

5 FAQ

Q: Are these screws suitable for outdoor use in rainy climates?

A: Yes, being made of 304 Stainless Steel, they offer high corrosion resistance and are ideal for outdoor environments including rain and humidity.

Q: Can I return the bulk pack if I only use half of it?

A: Our return policy allows returns within 30 days if the remaining items are in original, unused condition and the packaging is intact. Please contact customer service for a return authorization.

Q: Does this pack include multiple sizes or just one size?

A: This is a combination pack that includes a variety of common metric sizes to handle different thicknesses and applications. Please check the specific size chart in the product images.

Q: How does the anti-loosening mechanism work?

A: The nuts feature a specialized thread design or nylon insert (depending on specific sub-type) that creates friction against the bolt thread to prevent vibration from loosening the connection.

Q: What tool do I need to install these?

A: These feature a Cross (Phillips) drive, so you will need a standard Phillips head screwdriver or a power drill with a Phillips bit.

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