Custom Fasteners
Manufactured
to Your Drawing
What We Mean by “Custom Fasteners”
Custom fastener work covers everything our standard catalogue doesn’t: legacy or obsolete equipment that needs a matching replacement part no longer sold anywhere, a non-standard thread pitch or head/drive combination specified on an old drawing, a special coating or surface finish for a specific chemical exposure, a small prototype batch for R&D before committing to production volume, or simply a standard fastener modified in one dimension to fit a non-standard bore or clearance.
What makes this work possible for us: we run forging, CNC machining, thread rolling, and heat treatment in-house rather than farming each step out to different subcontractors. That means we control the whole process end to end, which is what lets us take on jobs that a shop dependent on fixed external tooling and high minimum-order quantities would have to turn away.
Custom work is available across our full material range — carbon steel, stainless 304/316, alloy steel, duplex and super duplex, and exotic alloys including Inconel, Monel, Hastelloy, and Titanium — all manufactured to ISO 9001:2015 with full mill test documentation on request.
Custom Work Photo Examples
A look at the categories of custom work we take on most often.
Engineered to Drawing
Built from full dimensional drawings and GD&T for new or non-standard designs.
Legacy Part Replacement
Rebuilt from a physical sample when the original part is no longer available.
Inconel / Monel / Hastelloy
Custom parts machined in exotic alloys for extreme service conditions.
Modified-Standard Parts
A catalogue part adjusted in one dimension to fit a non-standard requirement.
Built for Work a Catalogue Shop Can’t Take
Full In-House Manufacturing
Forging, CNC machining, thread rolling, and heat treatment under one roof — no dependency on external tooling shops for a custom run.
Reverse Engineering From a Sample
Send a physical sample of an obsolete or unmarked part — we measure, verify material, and reproduce it to match.
Full Exotic Alloy Access
Inconel, Monel, Hastelloy, and Titanium are already core materials we stock and machine — not a special order for us.
No Rigid Minimum Order Quantity
Prototype and small-batch runs are genuinely feasible here, not just technically possible at an uneconomical price.
Drawing vs Sample vs Modified-Standard
Most buyers aren’t sure how to even start a custom fastener conversation, so here’s the honest breakdown of the three real paths in. A full engineering drawing gives us the most certainty and the fastest quote; a physical sample takes longer because we have to measure and verify it first; and a modified-standard request is usually the quickest and cheapest of the three because we’re only changing one dimension on a part we already know how to make. Telling us which of these three you actually have saves a round of back-and-forth before we can quote.
| Property | Drawing-Based | Sample-Based (Reverse Engineered) | Modified-Standard |
|---|---|---|---|
| What You Provide | Full dimensional drawing / GD&T | Physical sample part | One catalogue part + the change needed |
| Dimensional Certainty | Highest — spec is fully defined | Good — dependent on measurement accuracy | Highest — only one variable changes |
| Typical Turnaround | Standard lead time | Standard + measurement/verification time | Fastest of the three |
| Material Verification | Confirmed from your spec | PMI testing recommended on the sample | Already known from base part |
| Best Suited For | New designs, engineered parts | Obsolete or unmarked legacy parts | Small tweaks to an existing standard part |
Custom Order Workflow
Custom Manufacturing Capability
Available Materials
- Carbon & Alloy Steel Full Range
- Stainless Steel 304 / 316 / 321 / 904L
- Duplex / Super Duplex S32205 / S32750
- Exotic Alloys Inconel / Monel / Hastelloy
- Titanium Grade 2 / Grade 5
Dimensional Capability
- Diameter Range M6 – M160
- Thread Pitch Metric / UNC / UNF / Custom
- Length Per drawing/sample
- Tolerance Class Per drawing/GD&T
- Batch Size Prototype to Full Production
Verification Capability
- PMI Testing On Sample-Based Jobs
- First Article Inspection Standard Practice
- Mechanical Testing Tensile / Hardness
- Mill Test Certificate Every Order
- NABL Reports On Request
When Custom Actually Makes Sense
The situations where a standard catalogue part genuinely won’t do the job.
Legacy Equipment Replacement
discontinued machinery
Reverse-Engineered Obsolete Parts
rebuilt from a sample
Prototype & R&D Fasteners
committing to volume
Special Coatings & Finishes
surface treatment
Non-Standard Thread Pitch
non-catalogue threading
OEM Branded / Marked Parts
and identification
Low-Volume Specialty Runs
impose high MOQs
Exotic Alloy Applications
fasteners built to spec
Standard Export Documentation
The same documentation rigor as our standard catalogue, applied to custom work.
Mill Test Certificate (MTC)
Heat number, chemical composition, and mechanical property verification.
First Article Inspection Report
Full dimensional verification of the approved sample piece before production.
Certificate of Conformance
Confirms the shipment matches the approved drawing or sample in full.
Certificate of Origin (COO)
Confirms India as country of manufacture for destination customs purposes.
NABL Accredited Test Reports
Independent mechanical and chemical testing available on request.
Commercial Invoice & Bill of Lading
Full export shipping documentation for ocean or air freight.
Reference Standards We Work Against
Related Products & Materials
Bolts
Our standard catalogue range — check here before requesting a custom part.
View Bolts →Nickel Alloy Fasteners
Inconel, Monel, Hastelloy, and Incoloy — our core exotic alloy range.
View Nickel Alloys →Titanium Grade 2 Fasteners
Commercially pure titanium, a common custom-order material request.
View Titanium Gr.2 →Stud Bolts
Precision-manufactured studs — often the base part for a modified-standard request.
View Stud Bolts →Have a Drawing
or a Sample?
Send whatever you have — drawing, sample, or an existing part with the change needed. We’ll tell you which path fits and what it’ll take to quote.
Sales: +91 724 0000 733 · Support: +91 800 9315 333 · export@akbarfasteners.in