FF-S-210 Machine Screws | Federal Specification Slotted & Cross-Recessed Screws | Akbar Fasteners Mumbai
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ISO 9001:2015 · US Federal Specification
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FF-S-210
Machine Screws
Mumbai · India

Akbar Fasteners Pvt. Ltd., Mumbai — ISO 9001:2015 certified manufacturer and exporter of machine screws referenced under US Federal Specification FF-S-210. This general-purpose specification covers the everyday machine screw — slotted, cross-recessed (Phillips-type), and hex head variants across common head styles like flat, oval, round, and pan — used wherever a purchase order needs a precise federal reference for standard threaded machine screw hardware rather than a more specialized bolt, stud, or precision fastener.
Reference US Federal Specification FF-S-210
Drive Types Slotted, Cross-Recessed, Hex
Head Styles Flat, Oval, Round, Pan, Fillister
Materials Steel, Stainless, Brass
3
Core Drive Types
50+
Countries Export Experience
5+
Common Head Styles
ISO
9001:2015 Certified
A Broad, General-Purpose Reference

What FF-S-210 Actually Covers

FF-S-210 sits in a genuinely different spot than the narrower federal specs we manufacture to — where FF-W-84, FF-W-92, and FF-W-100 each address one specific washer function, and FF-P-386 addresses one specific precision pin function, FF-S-210 covers general-purpose machine screws across a wide range of head styles and drive types. It’s the specification a federal purchase order references when the requirement is simply “a standard machine screw,” rather than something with a specialized function.

That breadth is exactly the point. Machine screws under FF-S-210 thread into a tapped hole or matching nut, in a range of head styles chosen for appearance, clearance, or driving preference rather than for a specialized mechanical function like locking or precision location. Getting the head style and drive type right for the actual assembly and tooling on hand matters more here than picking between exotic variants — which is why choosing the correct combination is the practical decision buyers actually need help with.

Akbar Fasteners Pvt. Ltd. exports to over 50 countries, and our machine screw range is manufactured across the head style, drive type, and material combinations most commonly specified, verified under our ISO 9001:2015 quality system.

FF-S-210 Machine Screw — Akbar Fasteners
Why Buyers Specify FF-S-210

Where FF-S-210 Genuinely Applies

Broad General-Purpose Coverage

Multiple head styles and drive types under one federal specification for everyday machine screw needs.

Unambiguous Government Reference

Removes ambiguity in federal purchase orders needing a defined, standard machine screw specification.

Multiple Material Options

Steel, stainless steel, and brass options across the same head/drive combinations.

Verified Dimensional & Thread Quality

Batch inspection confirms thread class and head dimension compliance for every lot.

Drive Types We Manufacture

Drive Type Options Explained

Slotted

Single-Slot Drive

The simplest, oldest drive type — cost-effective, but more prone to cam-out under power driving.

Cross-Recessed

Phillips-Type Drive

Cross-shaped recess enabling faster power-driven assembly with reduced (but not eliminated) cam-out risk.

Hex Head

External Hex Drive

Wrench or socket-driven external hex head, for higher torque application than a slotted or cross-recessed head allows.

Head Style Choice

Flat / Oval / Round / Pan / Fillister

Head profile selected for flush countersunk fit, decorative appearance, or maximum bearing surface as required.

Matching Head Style to Application

Head Style Selection Guide

The right head style depends on the assembly’s clearance, appearance, and countersinking requirements. This table is the quick reference we use with buyers before quoting.

Head StyleProfileTypical Use Case
Flat HeadCountersunk, flushWhere a flush surface is required
Oval HeadCountersunk with domed topFinished appearance over a countersink
Round HeadDomed, no countersinkGeneral-purpose, surface-mounted
Pan HeadLow domed profileMost common general-purpose head style
Fillister HeadRaised cylindrical profileHigher torque tolerance, recessed applications
Materials, Threads, and Dimensions

FF-S-210 Specification Details

Material Options

Materials We Manufacture In

  • Carbon Steel Plain / Zinc Plated
  • Stainless Steel 304 / 316
  • Brass Decorative / Electrical Use
  • Finish Plain / Nickel / Zinc / Black Oxide
Thread Specification

Thread Standards

  • Inch Series UNC / UNF
  • Metric Equivalent Available to Drawing
  • Thread Class 2A / 3A
  • Testing Thread Gauge Verified
Size Range

Available Dimensions

  • Nominal Size #0 – 3/8″ (Inch Series)
  • Length Custom to Application
  • Custom Sizes On Request
  • Matching Nut Standard Machine Screw Nuts
Where FF-S-210 Machine Screws Are Specified

Application Areas

Wherever a general-purpose machine screw with a federal specification reference is required.

Defense & Government Equipment

Federal procurement
general machine screw needs

Electrical Panels & Enclosures

Cover plates, terminal
blocks, and panel assembly

Machinery & Equipment Assembly

General cover, bracket,
and housing fixing

Government Infrastructure Hardware

Public works and federal
facility hardware needs

Rail & Transit Equipment

Government transit
authority procurement

Naval & Marine Equipment

Government marine
procurement contracts

Furniture & Cabinet Hardware

Standard machine screw
fixing for hardware assembly

General Federal Contract Hardware

Standard fastening across
federally specified projects
Every Export Shipment Prepared With

Standard Export Documentation

Prepared as standard practice for every FF-S-210 machine screw shipment.

Mill Test Certificate (MTC)

Heat number, chemical composition, and mechanical property verification for every lot.

Certificate of Conformance

Confirms the shipment matches the purchase order head/drive/material specification in full.

Thread Gauge Inspection Report

Verification of thread class conformance for correct nut and tapped-hole engagement.

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.

Standards We Manufacture To

Internationally Recognised Standards Coverage

US Federal Specification
FF-S-210
Federal specification reference for general-purpose slotted, cross-recessed, and hex head machine screws.
Commercial Equivalent
ASME B18.6.3
The commercial machine screw standard frequently cross-referenced alongside FF-S-210.
Thread Standard
ASME B1.1
Unified inch screw thread standard defining UNC/UNF thread form and classes referenced for these screws.
Material — Steel
ASTM A510 / A575
Carbon steel wire and bar specifications commonly referenced for standard machine screw material.
Material — Stainless
ASTM A276 / F593
Stainless steel bar and fastener specifications referenced for corrosion-resistant machine screw material.
Quality System
ISO 9001:2015
QMS certification covering our complete manufacturing, inspection, and documentation process at our Mumbai facility.
FF-S-210 Machine Screws — Manufacturer & Exporter

Need the Right
Head Style & Drive Type?

Send us your assembly requirement, size, and material — we’ll confirm the correct head style and drive type combination and quote across our full range. Akbar Fasteners Pvt. Ltd. responds within 24 hours.

Sales: +91 724 0000 733 · Support: +91 800 9315 333 · sales@akbarfasteners.in

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