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SS 410 / 416 Screws Manufacturer & Exporter in India

Explore SS 410 / 416 Screws Manufacturer & Exporter in India manufactured for demanding industrial applications with reliable strength, corrosion resistance and compliance with international standards.
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-196

Min Temp

870

Max Temp

🌡

870

Suitable for continuous service up to approximately 870°C under typical operating conditions.

⚡

620

Typical tensile strength around 620 MPa depending on product form and heat treatment.

🛡

Very Good

Very Good corrosion resistance in a wide range of industrial environments.

⚖

8

Typical density is approximately 8.0 g/cm³.

Product Overview

What are SS 410 / 416 Screws?

SS 410 / 416 screws are high-strength, martensitic stainless steel fasteners manufactured from ASTM A276/A493 bar stock, primarily UNS S41000 and S41600. These grades are known for their excellent machinability, moderate corrosion resistance, and high mechanical strength after heat treatment. SS 410 offers a good balance of hardness and toughness, while SS 416 is optimized for superior machinability due to its higher sulfur content.

Both grades are magnetic and can be hardened by heat treatment, making them ideal for applications requiring wear resistance, moderate corrosion protection, and precise threading. SS 410 / 416 screws are widely used in pump assemblies, valves, food processing equipment, and general engineering where stainless steel performance is required at a competitive cost.

Quick Specifications

MaterialStainless Steel 410 / 416
UNS NumberS41000 / S41600
DIN Number1.4006 / 1.4005
Material StandardASTM A276 / ASTM A493
Screw Standard (Metric)DIN 912 / DIN 963 / ISO 4762
Screw Standard (Inch)ASME B18.3 / B18.6.3
Thread FormISO Metric / UNC / UNF
Diameter RangeM3-M36 / #4-1.5"
Tensile Strength700-950 MPa (min, heat treated)
Yield Strength450-650 MPa (min, heat treated)
Hardness28-40 HRC (heat treated)
? All material certified by NABL-accredited laboratory. PMI and hardness survey available on request.

Complete the Fastener Set

Other SS 410 / 416 Fastener Products Available from RealBolt

RealBolt also manufactures the complete SS 410 / 416 fastener range — SS 410 / 416 Bolts, SS 410 / 416 Nuts, SS 410 / 416 Washers, SS 410 / 416 Studs, SS 410 / 416 Threaded Rods — from certified bar stock per ASTM with full EN 10204 MTC 3.1/3.2 documentation and fast Mumbai dispatch.
SS 410 / 416 Bolts
SS 410 / 416 Nuts
SS 410 / 416 Washers
SS 410 / 416 Studs
SS 410 / 416 Threaded Rods

Technical Data

SS 410 / 416 Screws Dimensions, Sizes & Thread Standards

SS 410 / 416 Screws are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 912 (socket head cap), DIN 963 (slotted flat head), ISO 4762 (hex socket). Custom lengths in 5mm increments. Inch dimensions available per ASME B18.3 and B18.6.3.

Socket Head Cap Screw Dimensions - Metric (DIN 912 / ISO 4762)

Size (M)Pitch (mm)Head Dia (mm)Head Ht (mm)Hex Socket (mm)Min L (mm)Max L (mm)
M30.55.53.02.5650
M40.77.04.03.0860
M50.88.55.04.01070
M61.010.06.05.01280
M81.2513.08.06.016100
M101.516.010.08.020120
M121.7518.012.010.025150
M162.024.016.014.030200
M202.530.020.017.035250
M243.036.024.019.040300

Dimensional & Material Standards

StandardCoversThread
DIN 912Socket head cap screwsMetric
DIN 963Slotted flat head screwsMetric
ISO 4762Hex socket screwsMetric
ASME B18.3Socket cap, set screwsUNC/UNF
ASME B18.6.3Machine screwsUNC/UNF
Material StandardRequirement
ASTM A276Bar/rod - SS 410/416
ASTM A493Wire - SS 416
ASTM F593Fastener mechanical
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

SS 410 / 416 Chemical Composition

SS 410 / 416 Screws are manufactured from an iron-chromium-nickel alloy with chromium (16–26%), nickel (8–28%), and grade-specific molybdenum additions per ASTM and ASTM A193/A194. Chromium content governs the self-healing passive oxide film; molybdenum (2–6%) enhances chloride pitting resistance; and carbon content determines sensitization risk in welded assemblies.

Chemical Composition per ASTM A276 / A493

ElementSS 410 (%)SS 416 (%)
Chromium (Cr)11.5-13.512.0-14.0
Nickel (Ni)0.75 max0.60 max
Carbon (C)0.15 max0.15 max
Manganese (Mn)1.00 max1.25 max
Silicon (Si)1.00 max1.00 max
Phosphorus (P)0.04 max0.06 max
Sulfur (S)0.03 max0.15 min
Iron (Fe)BalanceBalance
? All heats verified by NABL-accredited spectrometry. PMI available on request.

Why SS 410 / 416 Alloy Composition Matters for Screws

Cr (11.5–14%) — Corrosion & Oxidation Resistance
Chromium content provides a passive oxide layer, giving SS 410 / 416 screws moderate resistance to atmospheric and mild chemical corrosion, suitable for indoor and light industrial environments.
S (0.15% min in 416) — Machinability
SS 416’s high sulfur content dramatically improves machinability, allowing for precise threads and tight tolerances, making it ideal for high-volume screw production.
Martensitic Structure — Hardening Capability
Both grades can be hardened by heat treatment, achieving high strength and wear resistance, which is essential for screws subjected to repeated assembly and disassembly.

Fastener Performance

SS 410 / 416 Screws Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for SS 410 / 416 Screws per ASTM. SS 410 / 416 screws achieve 620 MPa tensile strength, with hardness, yield, and elongation values verified by NABL-accredited testing and reported in the EN 10204 MTC.

Screw SizeDry (Nm)Lubricated (Nm)Clamp Load (kN)
M61087.5
M8252013
M10504021
M12856830
M1621016860
M2042033695
?? Anti-galling: Use molybdenum-based or PTFE anti-seize. Lubricated values assume K=0.16. Avoid over-tightening to prevent thread galling in stainless steels.

Industry Applications

SS 410 / 416 Screws Applications — Industries & End Uses

SS 410 / 416 Screws from RealBolt are specified across food and dairy, pharmaceutical, marine, chemical processing, and oil and gas where very good corrosion resistance and 620 MPa tensile strength are required for reliable fastener performance. Click each industry below for detailed application examples.
SS 410 / 416 screws are widely used in pump casings, valve assemblies, and general engineering equipment where moderate corrosion resistance and high strength are required. Their hardenability and wear resistance make them ideal for moving parts and assemblies subject to vibration or repeated maintenance.
Used in food processing equipment, bottling lines, and packaging machinery for their cleanability, moderate corrosion resistance, and ability to withstand frequent washdowns. SS 416 is preferred for high-volume, precision-machined screws.
Applied in automotive assemblies, truck bodies, and railway equipment for fastening brackets, covers, and panels where strength and machinability are critical, and exposure to mild environments is expected.
SS 410 / 416 screws are specified for electrical enclosures, control panels, and instrumentation housings, providing secure fastening and moderate corrosion protection in indoor and sheltered outdoor installations.

SS 410 / 416 Screws Standards & International Certifications

SS 410 / 416 Screws from RealBolt Engineering Industries are manufactured to internationally recognised fastener dimensional standards covering thread form, tolerances, strength grades, and quality requirements. Every batch ships with EN 10204 MTC 3.1/3.2, hardness test certificate, ISO 3506 material certification, and NABL-accredited lab reports — available on request for all orders.
Standards
DIN 912 DIN 913 DIN 914 DIN 915 DIN 916 ISO 4762 ISO 10642 ASME B18.3 EN ISO 4762 IS 1367
Certifications
ISO 9001:2015PED 2014/68/EUNABL LabMTC 3.1 / 3.2

Buy SS 410 / 416 Screws from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified SS 410 / 416 Screws — for competitive pricing, EN 10204 MTC 3.1/3.2 documentation, and fast Mumbai dispatch. Standard sizes are ex-stock; custom dimensions accepted with 2–3 week lead time. Request your quote today.
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Answers for Buyers

SS 410 / 416 Screws — Frequently Asked Questions

Browse expert answers to common questions about SS 410 / 416 Screws from RealBolt — covering ASTM A193/A194 grades, chloride resistance, temperature limits, sensitization, sizes, and MTC documentation. Contact our technical team directly for project-specific guidance on SS 410 / 416 screws selection and pricing.
SS 410 / 416 screws are available to DIN 912 (socket head cap), DIN 963 (slotted flat head), ISO 4762 (hex socket), and ASME B18.3/B18.6.3 (inch series). Custom thread forms (UNC, UNF, BSW, BSF) and special head types can be supplied on request with short lead times.
Use molybdenum-based or PTFE anti-seize compound on SS 410 / 416 screws to prevent galling and seizing during assembly. Avoid copper-based anti-seize, as it may cause galvanic corrosion. Lubricated torque values should be reduced by 20% compared to dry assembly.
SS 410 / 416 screws offer moderate corrosion resistance and are suitable for indoor, sheltered outdoor, and mildly corrosive environments. They are not recommended for marine or highly corrosive chemical exposure. For such applications, use SS 316 or duplex stainless steel screws.
No formal MOQ for standard sizes (M4-M16) held in stock – single-piece orders are accepted for urgent needs. Custom sizes or head types may require a minimum batch of 10 kg. Quantity discounts apply at 100, 500, and 1000 pieces.

Industrial Cities We Serve:

  • Ahmedabad
  • Aurangabad
  • Bengaluru
  • Chennai
  • Coimbatore
  • Faridabad
  • Gandhidham
  • Greater Noida
  • Gurugram
  • Hazira
  • Hosur
  • Hyderabad
  • Jamnagar
  • Jamshedpur
  • Ludhiana
  • Mumbai
  • Mundra
  • Mysuru
  • Nagpur
  • Nashik
  • Navi Mumbai
  • Noida
  • Pune
  • Rajkot
  • Sanand
  • Surat
  • Thane
  • Tiruppur
  • Vadodara
  • Visakhapatnam

Countries We Export To:

  • US
  • Canada
  • Mexico
  • Germany
  • UK
  • France
  • Italy
  • Spain
  • Netherlands
  • Belgium
  • Poland
  • Sweden
  • Norway
  • Denmark
  • Turkey
  • UAE
  • Saudi Arabia
  • Qatar
  • Oman
  • Kuwait
  • Bahrain
  • South Africa
  • Egypt
  • Nigeria
  • Australia
  • New Zealand
  • Singapore
  • Malaysia
  • Indonesia
  • Thailand
  • Vietnam
  • South Korea
  • Japan
  • Brazil