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Copper C12200 (DHP) Screws Manufacturer & Exporter in India

Explore Copper C12200 (DHP) Screws Manufacturer & Exporter in India manufactured for demanding industrial applications with reliable strength, corrosion resistance and compliance with international standards.
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-100

Min Temp

260

Max Temp

🌡

260

Suitable for continuous service up to approximately 260°C under typical operating conditions.

⚡

220

Typical tensile strength around 220 MPa depending on product form and heat treatment.

🛡

Good

Good corrosion resistance in a wide range of industrial environments.

⚖

8.96

Typical density is approximately 8.96 g/cm³.

Product Overview

What are Copper C12200 (DHP) Screws?

Copper C12200 (DHP) screws are fasteners manufactured from phosphorus-deoxidized, high residual phosphorus copper, known for its excellent thermal and electrical conductivity, as well as superior corrosion resistance in water and steam environments. These screws are produced from UNS C12200 bar or wire, conforming to ASTM B187 and ASTM B16 standards, and are widely used in plumbing, HVAC, and electrical applications where non-sparking and antimicrobial properties are required.

C12200 copper screws are non-magnetic, ductile, and easy to fabricate, making them ideal for joining copper pipes, busbars, and fittings. Their resistance to hydrogen embrittlement and dezincification ensures long-term reliability in potable water systems and heat exchangers.

Quick Specifications

MaterialCopper C12200 (DHP)
UNS NumberC12200
DIN Number2.0090
Material StandardASTM B187 / ASTM B16
Screw Standard (Metric)DIN 963 / DIN 965 / ISO 7046
Screw Standard (Inch)ASME B18.6.3
Thread FormISO Metric / UNC / UNF
Diameter RangeM2-M24 / #2-1"
Tensile Strength210 MPa (30 ksi) min
Yield Strength69 MPa (10 ksi) min
Hardness45-80 HV (annealed)
? All material certified by NABL-accredited laboratory. PMI and conductivity testing available on request.

Complete the Fastener Set

Other Copper C12200 (DHP) Fastener Products Available from RealBolt

RealBolt also manufactures the complete Copper C12200 (DHP) fastener range from certified copper alloy bar stock, including Copper C12200 (DHP) Bolts, Copper C12200 (DHP) Nuts, Copper C12200 (DHP) Washers, Copper C12200 (DHP) Studs, and Copper C12200 (DHP) Threaded Rods. All Copper C12200 (DHP) fastener types are produced to ASTM with full EN 10204 MTC 3.1/3.2 documentation.
Copper C12200 (DHP) Bolts
Copper C12200 (DHP) Nuts
Copper C12200 (DHP) Washers
Copper C12200 (DHP) Studs
Copper C12200 (DHP) Threaded Rods

Technical Data

Copper C12200 (DHP) Screws Dimensions, Sizes & Thread Standards

Copper C12200 (DHP) Screws are available in metric M6–M100 and inch ¼″–4″ as standard. Per DIN 963 (slotted countersunk), DIN 965 (cross recessed), ISO 7046, and ASME B18.6.3. Custom lengths and thread forms available. Metric and inch sizes supplied. All Copper C12200 (DHP) screws dimensions conform to applicable DIN, ISO, and ASME B18 standards.

Slotted Countersunk Screw Dimensions - Metric (DIN 963 / ISO 7046)

Size (M)Pitch (mm)Head Dia (mm)Head Ht (mm)Min L (mm)Max L (mm)
M20.44.01.2440
M30.56.01.65650
M40.78.02.2860
M50.810.02.51070
M61.012.03.01280
M81.2516.04.016100
M101.520.05.020120
M121.7524.06.024150
M162.032.08.032200
M202.540.010.040250
M243.048.012.048300

Dimensional & Material Standards

StandardCoversThread
DIN 963Slotted countersunk screwsMetric
DIN 965Cross recessed countersunk screwsMetric
ISO 7046Countersunk head screwsMetric
ASME B18.6.3Machine screwsUNC/UNF
BS 4183Slotted cheese/csk screwsMetric
Material StandardRequirement
ASTM B187Bar/rod - UNS C12200
ASTM B16Rod/wire - C12200
EN 12166Copper wire for screws
EN 10204 3.1Mill test certificate
EN 10204 3.2TPI-witnessed MTC

Material Chemistry

Copper C12200 (DHP) Chemical Composition

Copper C12200 (DHP) Screws are produced from either tin-stabilized Naval Brass C46400 or aluminium-nickel-iron Aluminium Bronze C63000, with elemental limits per ASTM and MIL-B-24059. Tin (0.5–1%) in Naval Brass prevents dezincification in seawater; aluminium and nickel additions in Al Bronze C63000 provide non-sparking ATEX Zone 1 compliance.

Chemical Composition per ASTM B187 / B16

ElementComposition (%)
Copper (Cu)99.9% min (including Ag)
Phosphorus (P)0.015-0.040%
Silver (Ag)0.002% max
Oxygen (O)0.040% max
Other Elements (each)0.05% max
? All heats verified by NABL-accredited spectrometry. Conductivity and oxygen content certified per ASTM B187.

Why Copper C12200 (DHP) Alloy Composition Matters for Screws

High Copper Content (99.9%) — Conductivity
The nearly pure copper composition ensures excellent electrical and thermal conductivity, making C12200 screws ideal for electrical busbars, switchgear, and earthing applications.
Phosphorus (0.015–0.040%) — Deoxidation
Phosphorus deoxidizes the copper, improving weldability and resistance to hydrogen embrittlement. This is critical for screws used in plumbing and heat exchanger assemblies.
Low Oxygen — Corrosion Resistance
Controlled oxygen content prevents internal oxidation and ensures long-term corrosion resistance in potable water and steam service, making these screws suitable for sanitary and HVAC installations.

Fastener Performance

Copper C12200 (DHP) Screws Mechanical Properties & Torque Reference

The table below lists mechanical properties and torque reference for Copper C12200 (DHP) Screws per ASTM. Copper C12200 (DHP) screws achieve 220 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)
M41.21.01.1
M52.52.01.8
M64.53.62.7
M81194.5
M1022187.2
M12383010.5
M16957618.5
?? Soft copper: Use low torque and avoid overtightening. Lubricated values assume K=0.18. For electrical connections, ensure proper contact pressure without deformation.

Industry Applications

Copper C12200 (DHP) Screws Applications — Industries & End Uses

Copper C12200 (DHP) Screws from RealBolt are specified across marine hardware, ATEX hazardous areas, and naval defence where good corrosion resistance and 220 MPa tensile strength are required for reliable fastener performance. Click each industry below for detailed application examples.
Copper Pipework & Fittings
HVAC & Heat Exchangers
Copper C12200 screws are the preferred fastener for joining copper pipes, valves, and fittings in potable water supply and distribution systems. Their resistance to dezincification and hydrogen embrittlement ensures long-term reliability in municipal and commercial plumbing installations.
Essential for connecting copper busbars, switchgear, and earthing terminals in electrical panels and substations. High conductivity ensures minimal voltage drop and safe current transfer.

Copper C12200 (DHP) Screws Standards & International Certifications

Copper C12200 (DHP) 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, Lloyds Register or DNV certification, MIL specification documentation, and PMI (XRF) reports — available on request for all orders.
Standards
DIN 912 DIN 913 DIN 914 DIN 915 DIN 916 ISO 4762 ASME B18.3 IS 1367
Certifications
ISO 9001:2015WRAS ApprovedNABL LabPED 2014/68/EUMTC 3.1 / 3.2

Buy Copper C12200 (DHP) Screws from India's Leading Manufacturer — Get a Competitive Quote Today

Partner with RealBolt — India’s leading manufacturer of certified Copper C12200 (DHP) 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.
022-6743-7972
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Answers for Buyers

Copper C12200 (DHP) Screws — Frequently Asked Questions

Browse expert answers to common questions about Copper C12200 (DHP) Screws from RealBolt — covering alloy selection, ATEX Zone 1 compliance, dezincification resistance, ASTM standard, sizes, and EN 10204 documentation. Contact our technical team directly for project-specific guidance on Copper C12200 (DHP) screws selection and pricing.
Copper C12200 (DHP) screws are available to DIN 963 (slotted countersunk), DIN 965 (cross recessed), ISO 7046, ASME B18.6.3 (inch machine screws), and BS 4183. Custom thread forms and head styles can be supplied on request for electrical, plumbing, or architectural applications.
Yes – Copper C12200 (DHP) screws are WRAS approved and widely used in potable water systems, plumbing, and HVAC. Their resistance to dezincification and hydrogen embrittlement ensures safe, long-term use in municipal and commercial water supply lines.
Absolutely. Their high conductivity (minimum 97% IACS) makes them ideal for busbar, earthing, and switchgear connections. Ensure proper torque to maintain contact pressure without deforming the copper.
No formal MOQ for standard sizes (M4-M12) held ex-stock. Custom sizes or special head types may require a 5 kg minimum. Sample orders and small quantities are accepted for maintenance and prototyping.

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