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Home / Connectors and Fasteners / 304 Stainless Steel Round Head Hex Socket Screws Semi-Round Cup Bolts M1.6-M16

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material 304 Stainless Steel
Head Style Pan Head
Drive Type Hex Socket
Thread Standard Metric ISO
Size Range M1.6 to M16
Surface Finish Plain Polished
Strength Grade A2-70
Package Contents Assorted Kit
Total Quantity 500 Pieces
Item Weight 1.25 kg

5 reviews

A

Anonymous

Mar 29, 2026

Rating: 5/5

Perfect for machinery repair

Used these for repairing a conveyor belt mechanism. The hex socket fits perfectly with standard Allen keys.

A

Anonymous

Mar 05, 2026

Rating: 5/5

High quality stainless steel

These screws are exactly as described. The 304 steel holds up well against corrosion in my workshop environment.

A

Anonymous

Feb 14, 2026

Rating: 5/5

Fast shipping and well packed

Arrived quickly and the compartments in the box kept everything organized. No rust on any pieces.

A

Anonymous

Feb 08, 2026

Rating: 4/5

Solid hardware

Good tension strength. I use them for mounting equipment racks. Would recommend for general use.

A

Anonymous

Feb 04, 2026

Rating: 4/5

Good assortment

Great variety of sizes. I wished there were more M3 screws included, but overall good value.

5 FAQ

Q: Does the kit include an Allen key?

A: No, this kit contains only the screws. Hex keys are sold separately.

Q: Can I purchase just the M4 size?

A: This listing is for the assorted kit only. Single sizes are available in other listings.

Q: What is the thread pitch for M6?

A: The M6 screws feature a standard coarse thread pitch of 1.0mm.

Q: Are these screws metric or imperial?

A: These screws are fully metric, ranging from M1.6 to M16.

Q: Are these suitable for outdoor applications?

A: Yes, 304 stainless steel offers good corrosion resistance for most outdoor environments.

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