Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Screws
Origin	-
Material	304 Stainless Steel
Head Type	Large Flat Head / Umbrella Head
Drive Type	Cross (Phillips)
Surface Finish	Polished Silver
Included Components	Screw, Nut, Flat Washer, Spring Washer
Corrosion Resistance	High (Suitable for Outdoor Use)
Thread Standard	Metric Coarse Thread
Application	General Assembly, Machinery, Construction
Package Type	Wholesale Bulk Box
Durability	Heavy Duty Industrial Grade

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Great for manufacturing

We use these in our assembly line. The flat head sits flush perfectly, and the quality control seems very high. No defective threads in the entire batch we received.

Anonymous

Mar 31, 2026

Rating: 4/5

Solid hardware set

Very sturdy screws. The large flat head distributes pressure well on softer materials. Would have preferred a plastic sorting tray included, but for the price, it's a great deal.

Anonymous

Mar 27, 2026

Rating: 5/5

Perfect for marine applications

Using these on a boat dock renovation. The corrosion resistance is exactly what I needed. The spring washers provide good tension, and the cross drive grips well without stripping.

Anonymous

Mar 23, 2026

Rating: 5/5

Highly recommended for contractors

Bought this for a commercial job site. The finish is smooth, and installation is quick. The combination set means we don't have to source washers separately. Will order again.

Anonymous

Mar 23, 2026

Rating: 4/5

Good value, consistent sizing

The umbrella head looks very clean and professional. Sizing is consistent across the bulk pack. Only giving 4 stars because the packaging was slightly damaged on arrival, though the screws themselves were fine.

Anonymous

Mar 20, 2026

Rating: 5/5

Excellent quality for bulk purchase

Ordered these for a large fencing project. The 304 stainless steel is genuine and hasn't shown any rust after months of outdoor exposure. The combination of washers and nuts saves a lot of time during assembly.

5 FAQ

Q: What specific metric sizes are available in this bulk set?

A: This listing covers a range of common metric sizes from M4 to M12. Please select your specific size requirement from the dropdown menu before adding to cart.

Q: Are these screws suitable for use in saltwater environments?

A: Yes, being made of 304 Stainless Steel, they offer high corrosion resistance and are suitable for marine and saltwater environments, though regular inspection is recommended for extreme conditions.

Q: Can I get a certificate of material compliance for this product?

A: Yes, we can provide a mill test certificate confirming the 304 Stainless Steel composition upon request. Please contact our support team with your order number after purchase.

Q: Is the thread pitch coarse or fine?

A: These bolts feature a standard coarse thread pitch, which is ideal for general construction and assembly where quick installation and resistance to vibration are needed.

Q: Does the package include a matching driver bit?

A: No, this is a wholesale bulk hardware set containing only the screws, nuts, flat washers, and spring washers. Driver bits are sold separately.

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