Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Screws
Origin	-
Material	304 Stainless Steel / Grade 12.9 Alloy Steel
Head Style	Hex Socket (Headless/Grub)
Point Type	Cone Point
Drive Type	Internal Hex (Allen)
Available Sizes	M3, M4, M5, M6, M8, M10, M12
Thread Pitch	Standard Coarse Thread
Finish	Black Oxide (Steel) / Passivated (Stainless)
Hardness	HRC 38-45 (Grade 12.9)
Application	Securing collars, gears, and pulleys to shafts
Package Unit	Box of 100 pieces per size

6 reviews

Anonymous

Mar 26, 2026

Rating: 5/5

Perfect for machinery repairs

These set screws are exactly what I needed for repairing a conveyor belt motor. The hex socket fits perfectly without stripping, and the cone point grips the shaft securely.

Anonymous

Mar 22, 2026

Rating: 4/5

Solid industrial grade

Used these for securing pulleys on a lathe. They perform well under vibration. Would prefer if the box had dividers to separate sizes, but overall a solid purchase.

Anonymous

Mar 20, 2026

Rating: 5/5

Precise fit

The tolerances on these M6 screws are excellent. They slide in smoothly but tighten down with no play. Ideal for precision alignment tasks.

Anonymous

Mar 14, 2026

Rating: 5/5

Essential for workshop

I keep a variety of these sizes in my workshop. The 304 stainless option is great for outdoor equipment where rust is a concern. Very reliable product.

Anonymous

Mar 13, 2026

Rating: 4/5

Good value bulk pack

Great price for a box of 100. The threading is clean and consistent. Only giving 4 stars because the packaging was slightly damaged on arrival, but the screws were fine.

Anonymous

Mar 06, 2026

Rating: 5/5

High quality steel

Ordered the Grade 12.9 version for a high-torque application. They held up under significant stress without deforming. Will definitely order again.

5 FAQ

Q: Is the thread full length or partial?

A: These headless grub screws feature full-length threading from the tip to the top of the screw, allowing for maximum adjustment range within the tapped hole.

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

A: Yes, if you select the 304 Stainless Steel option, they offer excellent corrosion resistance suitable for marine applications. The Grade 12.9 alloy steel version has a black oxide finish which offers some protection but is not recommended for constant saltwater exposure.

Q: What size Allen key do I need for the M8 screws?

A: For standard M8 hex socket set screws, you will typically need a 6mm Allen key. Please double-check the specific product listing as variations can occasionally occur based on manufacturing standards.

Q: Do you sell these in individual sizes or only as a kit?

A: We sell them in boxes of 100 pieces per specific size (e.g., a box of just M5). We also offer a mixed assortment kit if you need a variety of sizes for general maintenance.

Q: Can these be used to secure a gear to a hardened steel shaft?

A: Absolutely. The Grade 12.9 cone point screws are specifically designed to bite into hardened shafts to prevent slipping under high torque loads. Ensure the shaft surface is clean before installation.

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