Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Screws
Origin	-
Material	201 Stainless Steel
Head Style	Headless (Grub Screw)
Drive Type	Internal Hex (Allen)
Point Type	Cup Point
End Style	Flat End
Standard Compliance	GB77, DIN913
Finish	Polished Silver
Thread Type	Metric Coarse
Application	Securing collars, gears, and pulleys to shafts
Corrosion Resistance	Moderate (Indoor use recommended)

6 reviews

Anonymous

Mar 20, 2026

Rating: 5/5

Great for DIY projects

Used these to fix a loose handle on my lathe. Easy to install with a standard Allen key and they look clean and professional.

Anonymous

Mar 17, 2026

Rating: 4/5

Good value for bulk purchase

Bought a large pack for our workshop. Quality is consistent across the batch. Only giving 4 stars because 201 steel isn't ideal for outdoor use.

Anonymous

Mar 15, 2026

Rating: 5/5

Perfect fit for my machinery

These screws fit perfectly into the pre-drilled holes on my motor shafts. The hex drive is precise and didn't strip during installation.

Anonymous

Mar 11, 2026

Rating: 5/5

Reliable industrial grade

We use these for securing timing belts in our assembly line. They hold tight under vibration and the internal hex is deep enough for good torque.

Anonymous

Mar 11, 2026

Rating: 5/5

Exactly as described

The cup point provides excellent grip on the shaft without causing excessive damage. Very satisfied with the dimensions matching DIN913 standards.

Anonymous

Mar 01, 2026

Rating: 3/5

Decent but not stainless enough for me

They work well mechanically, but I noticed some slight discoloration after a month in a humid environment. Should have gone with 304 steel.

5 FAQ

Q: Is the thread full length or partial?

A: These grub screws feature fully threaded bodies from the tip to the flat end, maximizing engagement depth.

Q: Are these screws suitable for outdoor marine applications?

A: No, 201 stainless steel has lower corrosion resistance than 304 or 316 grades. We recommend them for indoor or dry environments only.

Q: Can I return these if the size is wrong?

A: Yes, unused items in original packaging can be returned within 30 days. Please check our return policy page for detailed instructions.

Q: Do these come with a locking patch or adhesive?

A: No, these are plain mechanical set screws. If you require extra security against vibration, we suggest using a thread-locking fluid separately.

Q: What size Allen key do I need for an M6 screw?

A: For an M6 internal hex set screw according to DIN913 standards, you will typically need a 3mm Allen key.

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