Products
Non-standard socket screws
HAGUE FASTENERS makes non-standard socket screws to order: socket cap screws, shoulder screws, countersunk screws, set screws and low head cap screws, made in special lengths, threads and materials when the catalogue range does not fit.
1971
Making non-standard socket screws since
1 to 500
Prototypes to batches of several hundred
5 types
Cap, shoulder, countersunk, set and low head
3.1 / 3.2
EN 10204 certificates
Beyond the catalogue
When a standard socket screw will not do
HAGUE FASTENERS has made non-standard socket screws in the UK since 1971. Standard socket screws are easy to buy in common sizes and steel grades. They are much harder to find in a special length, an uncommon thread, a reduced head, or a material such as duplex, Inconel or titanium.
We turn, mill and form the socket in our own Willenhall facility, so we can control head dimensions, socket size, thread length and finish to your drawing. Sockets can be hexagon, Torx or a special drive form.
What makes them special
- Special lengths and thread lengths
- Reduced or enlarged heads
- Hexagon, Torx and special drive sockets
- Metric, unified and British threads
- Superalloy, duplex, stainless and titanium grades
- Nylon patch and other locking features
Types
Socket screw types we make
Socket cap screws
Cylindrical head with internal drive, for high strength joints in tight spaces.
Socket shoulder screws
Precision shoulder for pivots, guides and spacers.
Socket countersunk screws
Countersunk head sits flush with the surface.
Socket set screws
Headless screws that lock collars, pulleys and shafts.
Low head cap screws
Reduced head height where clearance is limited.
Materials and finishes
Any grade, any finish
See all fastener materials and coatings.
Typical materials
- Alloy steels, classes 8.8, 10.9, 12.9 and 14.9
- Stainless steels: A2, A4, 316, 17-4PH
- Duplex and super duplex
- Inconel, Monel and Hastelloy
- Titanium alloys
- Bronzes and brass
Threads, drives and finishes
- Metric coarse and fine, UNC, UNF, BSW and BSF
- Hexagon, Torx and special drive sockets
- Cut or rolled threads
- Zinc flake, zinc nickel and electroless nickel
- Nylon patch thread locking
- Laser-marked heat codes and part numbers
Industries
Socket screws for demanding equipment
Our socket screws go into valves, actuators, subsea tools, defence equipment and process machinery, where space is tight and the screw must resist corrosion or high load.
- Nuclear QC1 safety-critical parts
- Oil and gas downhole, subsea and topside
- Power generation turbines and plant
- Chemical process in corrosion resistant grades
- Shipbuilding and marine
Questions
Frequently asked questions
Can you make non-standard socket screws to drawing?
Yes. We make non-standard socket screws to customer and OEM drawings, in special lengths, threads, head sizes and materials.
What is a socket shoulder screw used for?
A shoulder screw has an accurate plain shoulder between head and thread, so parts can pivot or slide on it, or be spaced at a fixed distance.
Can you make socket screws in duplex or Inconel?
Yes. Socket screws in duplex, super duplex, Inconel, Monel, Hastelloy and titanium are a regular part of our work.
When is a low head cap screw used?
Where there is not enough clearance for a standard cap screw head, such as in tooling, fixtures and compact assemblies.
Can you copy a part from a sample?
Yes. Send a photograph beside a rule for a quick estimate, then the sample, and we can arrange collection for large items. We can replicate it, with an upgraded material, length or thread form if needed.
Useful tools
Free engineering tools
- Thread size chart and identifier: pitch, diameters, stress area and tapping drill, or identify an unknown thread.
- Bolt torque calculator: tightening torque and preload for metric, UNC, UNF, BSW and BSF threads.
- Material equivalents finder: find the EN, UNS, ASTM, BS and JIS equivalents of a grade, such as 1.4462 or 316.
Free to use, no sign-up. See all our engineering tools.
Socket screw enquiry?
Send us your drawing or sample
Tell us the type, size, thread, material, quantity and documentation you need and we will come back to you quickly.