Bulk supply · Africa
Specials & Non-Standard
Fasteners made to your drawing — oversized diameters, extra-long bolts, U-bolts, foundation and holding-down assemblies — produced with sample approval before the production run.
- MADE TO DRAWING
- OVERSIZE AND LONG LENGTHS
- SAMPLE APPROVAL FIRST
Also searched as: made to drawing fasteners · holding down bolts · u-bolts · special bolts
What buyers need to know
Specifying specials.
Every plant has a handful of fasteners that no catalogue carries: the 900 mm holding-down bolt under a crusher, the U-bolt around a non-standard pipe, the bolt with a shoulder that stops a linkage wearing. Those are the items that hold up a shutdown when the original supplier is on another continent and the lead time is quoted in months.
We make them to drawing. Send a dimensioned sketch, a CAD file, or the worn part itself with the dimensions you can measure, plus the material grade and finish, and we return a manufacturing quotation with a lead time. Where the specification is unclear we come back with questions rather than making assumptions that end up on a pallet.
For anything going into a repeating production run we make a first-article sample for your approval before committing the batch. It adds a week and removes the risk of a container of unusable parts. Common non-standard work includes foundation and holding-down assemblies with template plates, U-bolts and pipe clamps, extra-long and oversize hex bolts, shoulder and stepped bolts, and full kits assembled per position.
Specification
Full specification table.
| Made from | Your drawing, CAD file, sample part or dimensioned sketch |
|---|---|
| Diameters | Beyond M42 and imperial equivalents where required |
| Lengths | Long bolts and studs past standard catalogue lengths |
| Materials | Carbon steel, high-tensile alloy, stainless 304 / 316, brass |
| Processes | Hot forged, machined, cut and threaded, bent and formed |
| Finishes | Black, zinc, hot-dip galvanised, Dacromet, PTFE coated |
| Approval | First-article sample supplied before the production run |
| Documentation | Material certificates, dimensional report, test results |
Types we stock and source
Variants on one enquiry.
Foundation / holding-down bolts
L, J and straight with template plates and nuts.
U-bolts and pipe clamps
Formed to your pipe OD and thread specification.
Extra-long and oversize bolts
Beyond catalogue diameters and lengths.
Shoulder and stepped bolts
Machined bearing diameters for linkages.
Bent and formed parts
Hooks, eye bolts, rag bolts, tie rods.
Assembled kits
Positioned, bagged and labelled per drawing item number.
Coating by exposure
Which finish for which African site.
- Buried or cast-in
- Hot-dip galvanised at minimum; consider extra coating thickness.
- Plant and wear parts
- Alloy steel heat treated to a specified hardness.
- Coastal exposed
- Stainless 316 or duplex where load and corrosion combine.
- High temperature
- Alloy grades with certified elevated-temperature properties.
Typical order sizes
What a real enquiry looks like.
- 48 holding-down assemblies with template plates for a crusher foundation
- U-bolts across nine pipe diameters for a process plant re-support
- Repeat batch of shoulder bolts against an approved first-article sample
Questions
Specials FAQs.
- What do you need to quote a non-standard fastener?
- A dimensioned drawing or sketch, the material grade, the finish, the quantity and the required date. Photographs of the worn part help. If you have a CAD file, send it — it removes interpretation from the quotation.
- What is the lead time on made-to-drawing fasteners?
- Typically four to eight weeks in production plus shipping, depending on process and quantity. Add roughly a week if you want a first-article sample approved before the batch, which we recommend on any repeating item.
- Is there a minimum quantity for specials?
- It depends on the process. Machined parts run economically from small quantities; hot-forged items need volume to justify tooling. We tell you the break point in the quotation rather than after you order.
Where we ship it
Specials & Non-Standard by country.
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