Products · Socket screws
Low head cap screws
Socket cap screws with a reduced head height for tight spaces, made by HAGUE FASTENERS in special materials, lengths and thread forms.
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
Socket screws for tight spaces
HAGUE FASTENERS makes low head cap screws in the UK for designs with limited head room. The head is lower than a standard socket cap screw, so the screw fits shallower counterbores and thinner parts.
Many of the low head cap screws we make are in duplex, super duplex or critical superalloys. We make BSW, BSF, UNC and UNF threads, and most work is modified standards or bespoke bolting to customer or OEM drawings.
Where they are used
- Shallow counterbores and thin plates
- Jigs, fixtures and tooling
- Compact machine assemblies
- Instrument and defence equipment
- Where head height is limited
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 | Low head with or without pilot recess, special head heights and lengths |
| Standards | DIN 7984, DIN 6912, ASME B18.3, BS 2470, BS 4168 |
| Grades | Classes 8.8 to 12.9, A2 and A4 stainless, duplex, 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 a low head cap screw?
A low head cap screw is a socket cap screw with a reduced head height, used where there is not room for a standard head.
Are low head cap screws as strong as standard ones?
The thread is the same, but the lower head and shallower socket limit the tightening torque, so check the design load. We can advise.
What is the difference between DIN 7984 and DIN 6912?
Both are low head socket cap screws. DIN 6912 has a pilot recess in the head, while DIN 7984 has a lower head without it.
Is there a minimum order quantity?
No. We make single prototypes and urgent breakdown replacements as well as batches of several hundred.
Low head screw enquiry?
Send us your drawing or specification
Tell us the size, thread, grade, quantity and documentation you need and we will come back to you quickly.