Products · Socket screws
Socket set screws and grub screws
HAGUE FASTENERS makes socket set screws to order: socket and slotted set screws, also called grub screws, with flat, cone, dog and cup points, made in superalloys, nickel alloys and high specification stainless steels.
1971
Making non-standard socket screws since we began
1 to 500
Single prototypes to batches of several hundred
12.9 / 14.9
High strength alloy classes, plus superalloys
UK, EU, US
Mill origin of every bar we use
Socket screws
Headless screws in materials stockists do not hold
HAGUE FASTENERS makes socket set screws in the UK, along with slotted set screws and grub screws of every kind. We make them in high tensile alloy steels, but most now are in superalloys, nickel grades and high specification stainless steels that imported stock does not cover.
A set screw has no head: it sits inside a tapped hole and its point bears on a shaft or part to hold it in place.
Where they are used
- Securing pulleys, gears and collars
- Locking shafts and spindles
- Adjustment and positioning
- Valve and instrument assemblies
- Bearings and couplings
Typical specifications
Options we make to
The standards listed are those we are most often asked to make to or modify. The part supplied always follows your drawing or specification.
| Option | Typical choices |
|---|---|
| Forms | Socket or slotted, flat, cone, dog and cup points, special points |
| Standards | ISO 4026, ISO 4027, ISO 4028, ISO 4029, DIN 913, DIN 914, DIN 915, DIN 916, ISO 4766, ISO 7434, ISO 7435, ISO 7436, DIN 417, DIN 427, DIN 438, DIN 551, DIN 553, BS 4168, ASME B18.3 |
| Grades | High tensile alloy steels, A2 and A4 stainless, 17-4PH, superalloys and nickel alloys |
| Threads | Metric coarse and fine, UNC, UNF, UN, BSW, BSF and special forms |
| Finishes | Plain, passivated, zinc flake, zinc nickel, electroless nickel, PTFE and others via coatings |
| Documentation | CoC, EN 10204 3.1 and 3.2, test reports, laser-marked heat codes |
Materials
Any grade, made in the UK
See all fastener materials. Grades are selected for corrosion, temperature and strength, and we are happy to advise.
Typical materials
- Alloy steels: classes 8.8, 10.9, 12.9 and 14.9
- Stainless steels: A2 and A4, 316, 17-4PH
- Duplex and super duplex: S31803, S32750, S32760
- Inconel 625 and 718, Monel K500
- Hastelloy and titanium alloys
- Bronzes and engineering polymers
Why buyers come to us
- Made in our Willenhall facility, from one-offs to several hundred
- Bar from UK, EU and US mills only, with heat traceability
- Modified standards and parts to customer or OEM drawings
- EN 10204 3.1 or 3.2 certificates and UKAS-accredited testing
- Copies made from a sample or photograph, with upgrades if needed
Related products
Related types
All socket screws
Back to the socket screws family
Custom fasteners
Made to your drawing
Questions
Frequently asked questions
What is the difference between a set screw and a grub screw?
In this sense they are the same: a headless screw that sits in a tapped hole. In the UK, “setscrew” can also mean a fully threaded hexagon head screw.
Which point should I choose for socket set screws?
Cup points suit general use, flat points frequent adjustment, cone points a drilled spot, and dog points a hole or slot.
Can you make set screws in Inconel or Monel?
Yes. Most of the set screws we make are in superalloys, nickel alloys and high specification stainless steels.
Is there a minimum order quantity?
No. We make single prototypes and urgent breakdown replacements as well as batches of several hundred.
Set screw enquiry?
Send us your drawing or specification
Tell us the size, point, thread, grade, quantity and documentation you need and we will come back to you quickly.