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Home / Screws / Jinchao 304 Stainless Steel Round Head Hex Socket Screws Grade 8.8 Pan Head Self-Tapping Screws Semi-Round Head M3 M4 M5 M6

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Screws
Origin -
Material 304 Stainless Steel
Head Style Pan Head / Semi-Round Head
Drive Type Hex Socket (Allen)
Strength Grade 8.8
Thread Type Self-Tapping
Available Sizes M3, M4, M5, M6
Finish Polished Silver
Corrosion Resistance High (Suitable for Outdoor Use)
Package Content Assorted Kit with Storage Box
Invoice Type 13% VAT Invoice Available

6 reviews

A

Anonymous

Mar 29, 2026

Rating: 5/5

Perfect for electronics enclosure

Needed M3 and M4 sizes for mounting components in a metal enclosure. The pan head sits flush and the grade 8.8 strength is more than enough for this application. Highly recommended.

A

Anonymous

Mar 25, 2026

Rating: 5/5

No rust after months outside

Installed these on a outdoor shed door handle six months ago. Despite rain and sun, there is absolutely no sign of rust or corrosion. The 304 steel claim is legitimate.

A

Anonymous

Mar 19, 2026

Rating: 4/5

Good variety pack

Great assortment of sizes. The self-tapping feature works well on soft wood and plastic. One star off because the box latch was slightly loose upon arrival, but the screws themselves are perfect.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Fast shipping and great invoice

Arrived quickly and the VAT invoice was provided immediately as promised. The screws are shiny, uniform, and thread easily without pre-drilling in softer materials.

A

Anonymous

Mar 17, 2026

Rating: 4/5

Solid hardware

Very happy with the build quality. The hex drive fits my Allen keys perfectly. I wish there were a few more M6 screws in the kit, but overall a good value.

A

Anonymous

Mar 06, 2026

Rating: 5/5

Excellent quality for the price

These screws are solid. The 304 stainless steel feels genuine and the hex socket is deep enough to prevent stripping. Used them for a garden project and they hold up well against moisture.

5 FAQ

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

A: While 304 stainless steel offers good corrosion resistance, for constant submersion or harsh saltwater spray, we recommend 316 stainless steel. These are great for general outdoor use though.

Q: Does the kit include an Allen key?

A: No, the kit contains only the screws and the storage box. You will need to use your own metric hex socket bits or Allen keys.

Q: Can I get a formal VAT invoice for business reimbursement?

A: Yes, we provide a valid 13% VAT invoice for all orders. You can download it from your order history or request it via email after purchase.

Q: What is the thread pitch for the M5 size?

A: The M5 screws feature a standard coarse thread pitch of 0.8mm, which is typical for self-tapping applications in this category.

Q: Will these work on hard plastic like ABS?

A: Yes, the self-tapping design is specifically engineered to cut threads into plastics like ABS, PVC, and nylon, as well as soft woods and thin sheet metal.

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