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Home / Screws / 304 Stainless Steel Cone Point Set Screw Headless Hex Socket Grub Screw M3 M4-M6

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Screws
Origin -
Material 304 Stainless Steel
Head Style Hex Socket (Headless)
Point Type Cone Point
Drive Type Allen/Hex Key
Available Sizes M3, M4, M5, M6
Thread Pitch Standard Coarse
Finish Polished Silver
Hardness HRC 28-32
Application Securing collars, gears, and pulleys
Corrosion Resistance High (Indoor/Outdoor)

6 reviews

A

Anonymous

Mar 30, 2026

Rating: 5/5

High quality stainless

Used these in an outdoor environment where rust was a concern. After three months, there is zero corrosion. Highly recommend for exterior applications.

A

Anonymous

Mar 26, 2026

Rating: 5/5

Precise threading

The threads are cut very cleanly. No cross-threading issues when installing them into aluminum blocks. Essential hardware for any workshop.

A

Anonymous

Mar 18, 2026

Rating: 5/5

Exactly what I needed

Replaced some stripped zinc screws with these 304 stainless ones. Much better durability and the headless design saves space in tight assemblies.

A

Anonymous

Mar 17, 2026

Rating: 4/5

Good value pack

Bought the M4 size for a DIY project. They are sturdy and the hex socket didn't strip even with tight torque. Would have liked a storage case included.

A

Anonymous

Mar 17, 2026

Rating: 4/5

Solid little screws

Works exactly as described. The cone point digs in nicely to hold the collar in place on my motor shaft. Delivery was fast too.

A

Anonymous

Mar 05, 2026

Rating: 5/5

Perfect for machinery repair

These grub screws fit perfectly in my lathe setup. The cone point grips the shaft well without slipping, and the stainless steel quality is evident.

5 FAQ

Q: Do these come with the Allen key needed to install them?

A: No, the set screws are sold separately without tools. Please ensure you have the appropriate metric hex key for the size you purchase.

Q: Can the cone point damage a soft brass shaft?

A: Yes, the cone point is designed to dig slightly into the shaft for grip. For soft materials like brass, consider using a cup point or flat point screw to minimize marking.

Q: Is the thread pitch standard for metric sizes?

A: Yes, all our metric set screws feature standard coarse thread pitches corresponding to their respective diameters (e.g., M4x0.7).

Q: What is the length of the M6 screws in this listing?

A: This listing includes various lengths for each diameter. Please select your specific required length from the dropdown menu before adding to cart.

Q: Are these suitable for use in saltwater environments?

A: While 304 Stainless Steel offers good corrosion resistance, 316 Stainless Steel is generally recommended for direct or prolonged exposure to saltwater.

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