FF-P-386
Straight Pins
Mumbai · India
Why FF-P-386 Precision Genuinely Matters
A straight pin’s entire job is holding two or more parts in a precisely repeatable position relative to one another — unlike a bolt or screw, it carries no clamping load of its own. That job only works if the pin’s diameter is held to a tight, controlled tolerance, because the pin’s fit in the reamed hole is what determines whether the located parts actually stay aligned under load, vibration, or repeated disassembly and reassembly.
FF-P-386 exists to give US federal and government procurement the same kind of precise, unambiguous reference that DIN 7 and ISO 2338 provide in metric-standard markets — a specification a purchase order can cite directly, confident that the pin delivered will actually hold the tolerance the locating application depends on. Substituting an uncontrolled or loosely toleranced pin for one specified to FF-P-386 defeats the entire purpose of using a dowel-type pin in the first place.
Akbar Fasteners Pvt. Ltd. exports to over 50 countries, and our straight pin range is manufactured with ground, controlled-diameter precision and verified by dimensional testing under our ISO 9001:2015 quality system.
Where FF-P-386 Genuinely Applies
Precise, Repeatable Location
Controlled diameter tolerance ensures the pin locates mating parts the same way every time.
Unambiguous Federal Specification
Removes ambiguity in government purchase orders that need a precisely referenced pin standard.
Hardened Class Available
Hardened steel class options for applications requiring higher wear resistance under repeated use.
Verified Dimensional Accuracy
Batch dimensional testing confirms genuine controlled-diameter precision, not just nominal size.
FF-P-386 Class Options
Unhardened Carbon Steel Pins
General-purpose locating pins for applications not requiring high wear resistance.
Hardened & Ground Steel Pins
Higher surface hardness for applications with repeated insertion/removal or wear-prone locating duty.
Stainless Steel Pins
Stainless material option for locating applications in corrosive or hygienic environments.
FF-P-386 Specification Details
Materials We Manufacture In
- Carbon Steel Standard Class
- Hardened Steel Hardened Class
- Stainless Steel 304 / 316
- Finish Plain / Black Oxide / Passivated
How Precision Pins Are Made
- Process Ground to Diameter
- Ends Chamfered Both Ends
- Testing Dimensional / Hardness
- Quality Batch Sampled
Available Dimensions
- Nominal Diameter 1/16″ – 1″ (Inch Series)
- Metric Equivalent Available to Drawing
- Length Custom to Application
- Metric Comparison DIN 7 / ISO 2338
FF-P-386 vs DIN 7 / ISO 2338
Buyers working across both metric and US-federal-referenced drawings often need both equivalents confirmed. This table is the quick reference we use before quoting a mixed-standard order.
| Aspect | FF-P-386 | DIN 7 / ISO 2338 |
|---|---|---|
| Reference Region | US Federal / Government | Metric / European & International |
| Basic Function | Precision locating pin | Precision locating pin |
| Sizing System | Inch Series | Metric (mm) |
| Hardness Classes | Standard / Hardened | Standard (h8) / Hardened (m6) |
Application Areas
Wherever precise, repeatable part location matters and a federal specification reference is required.
Defense & Aerospace Assembly
precision locating needs
Precision Tooling & Fixtures
fixture location points
Machine Assembly
machine housing components
Mold & Die Components
alignment locating pins
Instrumentation Assembly
instrument housings
Government Contract Hardware
explicitly specified
Rail & Transit Equipment
location in transit vehicles
General Precision Assembly
federally specified projects
Standard Export Documentation
Prepared as standard practice for every FF-P-386 pin shipment.
Mill Test Certificate (MTC)
Heat number, chemical composition, and mechanical property verification for every lot.
Dimensional Inspection Report
Diameter and length verification confirming genuine controlled-tolerance precision.
Certificate of Conformance
Confirms the shipment matches the purchase order material/class specification in full.
Certificate of Origin (COO)
Confirms India as country of manufacture for destination customs purposes.
NABL Accredited Test Reports
Independent mechanical and dimensional testing available on request for critical applications.
Commercial Invoice & Packing List
Itemized value, Incoterm, and detailed carton/weight breakdown for customs clearance.
Internationally Recognised Standards Coverage
Related Fastener Grades & Materials
DIN 7 Dowel Pins
The metric-standard equivalent parallel dowel pin specification for international drawings.
View DIN 7 Dowel Pins →DIN 1 Taper Pins
Tapered pin alternative for applications needing a self-locking, wedge-fit locating pin.
View DIN 1 Taper Pins →FF-W-100 Flat Washers
Our companion US federal specification washer range.
View FF-W-100 →Fasteners Manufacturer & Exporter to the USA
Our broader capability manufacturing to ASTM/ASME and US federal standards.
View USA Export Guide →Need Precise,
Repeatable Location?
Send us your diameter, tolerance, and class requirement — we’ll confirm specification match and manufacture ground-precision pins with full documentation. Akbar Fasteners Pvt. Ltd. responds within 24 hours.
Sales: +91 724 0000 733 · Support: +91 800 9315 333 · sales@akbarfasteners.in