When the Fastener Isn't in Any Catalogue
Most fasteners you can simply buy. The ones that stop a job are the ones you can't: a non-standard thread, a special head or drive, an unusual length, a shoulder or stepped bolt, an exotic material — or a fastener from old equipment that nobody sells anymore. Distributors quote huge minimums or simply say "non-stock".
EKINSUN makes exactly those. We manufacture custom and non-standard fasteners to your drawing, or reproduce them from a single worn sample, in low to medium volumes. No CAD file, no thousand-piece minimum, and a quote within 24 hours.
Send Us Whatever You Have
You don't need a spec sheet to start. Any one of these is enough:
A sample
The old fastener — we gauge thread, head, drive, length and material.
A stripped/sheared part
Damaged is fine; we recover the original dimensions.
A photo
Clear photos with one known size or a caliper in shot.
A sketch or drawing
Dimensions you know, or a full drawing if you have one.
An obsolete fastener
Unsupported / discontinued — we reproduce it.
Fasteners We Make
By Type
By Need
By Material
Popular: custom bolts · obsolete & discontinued fasteners. Need something not listed? Send the sample or sketch and we'll quote it.
What We Do — and Don't
We are not a commodity hardware distributor, and saying so keeps our pricing and lead times focused where they help you:
| We make this | We don't do this |
|---|---|
| Non-standard / special threads & heads | Standard M6 / M8 catalogue bolts |
| Replacement & obsolete fasteners from a sample | Bulk commodity hardware off the shelf |
| Exotic materials, custom lengths, low volumes | Mass-distribution stock items |
If a standard part covers it, a distributor will be cheaper — and we'll tell you so. If it doesn't exist, that's exactly what we're for.
How We Hold the Critical Features
| Feature | How we hold it |
|---|---|
| Thread | Gauged to the matched standard (metric / UNC / UNF / BSW / BA) or reproduced exactly from the sample |
| Head & drive | Hex, socket, slotted, Torx, custom — to original form |
| Diameters & shoulders | Turned tight, typically ±0.02–0.05 mm on fitting features |
| Material & finish | Verified material; black oxide, zinc, passivation or anodising as needed |
No Drawing? We Reverse Engineer It
Most fastener jobs arrive as a single old part. We measure it, rebuild the drawing for free, confirm with you, then machine. See how we reverse engineer parts and make parts from a sample.
Materials
Stainless
304 and 316 for corrosion resistance — marine, food, outdoor and chemical environments.
316 →304 →Titanium & brass
Titanium for strength-to-weight and corrosion; brass for conductivity and anti-galling.
Ask about material →What to Send Us
- The sample fastener (even stripped/sheared), or photos with one known dimension
- Thread size or pitch if you know it — or let us gauge it
- What it fastens and the material/finish you need (or the application, and we'll advise)
- Quantity — a few spares or a production run
- Delivery country (we ship worldwide)
No CAD, no problem. Rebuilding the drawing is our job — free, confirmed with you before anything is cut. See how to order with no CAD file.
A note on branded parts. We make a compatible fastener to the original's form, fit and function from what you supply. We don't sell branded original products or imply affiliation with the original manufacturer.
Frequently Asked Questions
Yes. Send the fastener — even stripped or corroded — and we gauge the thread, head, drive, length and material, rebuild the drawing for free, confirm it, then manufacture. No part number, standard or CAD file needed.
No. We're not a commodity distributor. We specialise in custom, non-standard, replacement and obsolete fasteners — special threads, lengths, heads, exotic materials and low-volume runs. If a standard part covers it, a distributor is cheaper; if it doesn't, that's us.
Special screws, bolts, studs, pins, threaded rods and dowel pins; non-standard threads; custom lengths and heads; shoulder/stepped bolts; and replacement, OEM, prototype and obsolete fasteners — in stainless, titanium, brass, alloy and tool steels.
Yes. We gauge pitch, diameter and form to identify the thread — metric, UNC/UNF, BSW/BSF, BA or odd legacy threads — and reproduce it exactly, or advise the nearest standard if you'd rather standardise.
Low. Prototypes and small batches are welcome on machined fasteners, and we run small to medium production. Tell us the quantity — from a handful of spares up.
Yes — 304/316 stainless, titanium, brass, bronze, alloy and tool steel, with black oxide, zinc, passivation or anodising where applicable. Material is driven by strength, corrosion and the application.
We make a compatible fastener to the original's form, fit and function from the sample, drawing or photos you supply. We don't sell branded originals or imply affiliation with the original manufacturer.
Get Custom Fasteners Quoted
Sample, sketch or drawing — all accepted. Engineers reply in 24h.