Allen Bolts & Screws
Allen Grub Screw (Set Screw)
Headless socket grub screws (set screws, DIN 916) with cup point in 45H black and SS, M3 to M20, to lock pulleys and collars on shafts.
| Material | Alloy steel, Stainless steel SS 304 |
|---|---|
| Grade / property class | 45H, A2 |
| Sizes available | M3 to M20 |
| Finish | Black, Natural stainless |
| Standards | DIN 916 (cup point), ISO 4029, DIN 913 (flat point) |
| Price | Price on request – depends on size and quantity |
| Availability | In stock for Trichy & Thanjavur. Delivered across Tamil Nadu and all over India. |
Need a price or bulk quantity?
Send us the size and quantity on WhatsApp. Pick up in Trichy & Thanjavur, or we deliver across Tamil Nadu and all over India. We usually reply within working hours (Mon – Sat, 9:00 AM – 8:00 PM).
About Allen Grub Screw (Set Screw)
Grub screws (set screws) have no head: the hexagon socket is in the end of the thread, so the screw sits below the surface. They lock pulleys, gears, collars and couplings onto shafts. Cup point is standard; flat point is available on request.
Common applications
- Locking pulleys, gears and collars on shafts
- Couplings and knobs
- Adjustment screws
Frequently asked questions
›Which grub screw point should I use?
Cup point grips a round shaft best and is the most common. Flat point is used where the shaft must not be marked.
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