317L Round Bar

Phosphorous Bronze Fasteners

Phosphorous Bronze Fasteners<br />

ASTM C54400 Phosphorous Bronze Fasteners, Phosphorous Bronze Hex Cap Screw, Phosphorous Bronze High Tensile Fasteners, Phosphorous Bronze Nuts, Phosphorous Bronze Flat Washer Supplier & Exporter

Phosphorous Bronze Screws, Phosphorous Bronze Heavy Hex Nuts, Phosphorous Bronze Threaded Rod, Phosphorous Bronze Round Head Bolts Manufacturer & Stockist

Detailed Information:

Ratnaexports.com, an Indian manufacturer of Phosphor Bronze Fasteners, manufactures Phosphor Bronze Fasteners. We manufacture various Phosphor Bronze Fasteners in multiple sizes, grades, and scales. Our mission is to manufacture phosphor bronze fasteners that meet national and international quality standards. The phosphor bronze we use is a copper-based alloy. Copper, tin, phosphorus, and other elements found in trace amounts throughout the composition.

It is important to note that phosphor bronze fasteners are made of a type of material called phosphor bronze. This material is available in different grades, and it is used to make various types of fasteners. Viha Steel & Forging is a leading manufacturer of phosphor bronze nuts and bolts in multiple stages that are used for fasteners. Various fasteners range in composition from 0.5% to 11% tin and 0.01% to 0.35% phosphorus. Different pins exist, including phosphor bronze wood screws and metallic screws. Up to 85.97% of the material is copper.

In addition to the phosphor bronze thrust washers, which can also be used between a rotating component and a stationary component in engines and exhaust parts, other types are also available. They are corrosion-resistant and can withstand high temperatures inside engines and exhaust parts. The phosphor bronze threaded rod does not have a head and can be fitted with or without bolts. Different material grades are available, and each can be used for a separate application. ASTM C54400 Phosphorous Bronze Fasteners have 470 MPa minimum tensile strength and 385 MPa minimum yield strength with a 20% elongation rate and 80 RB hardness.

There is a melting point of up to 954 degrees Celsius for UNS C51000 Phosphorous Bronze Fasteners. These Phosphorous Bronze Fasteners contain up to 95% copper in their composition and have a melting point of up to 1000 degrees Celsius. A UNS C51900 phosphorous bronze fastener, which has a yield strength of 586 MPa and a tensile strength of 661 MPa, has been reported to withstand temperatures up to 930 degrees Celsius. There is up to 7% tin in UNS C52100 Phosphorous Bronze Fasteners, and they have a minimum tensile strength of 585MPa and a minimum yield strength of 415MPa. So, these fasteners can be used in various applications, depending on their mechanical properties. For more information and pricing, please feel free to contact us.

Standard Specification For Phosphorous Bronze Fasteners


Material Specification Standards Size
Phosphorous Bronze ASTM ASTM C54400 1/4″ to 2″


C54400 Phosphor Bronze Fasteners / Bolts Standard IS, GB, BS, ASME, ANSI, DIN, ASTM JIS, UNI, ISO, and all International Standards
Phos Bronze Fasteners Material Specification UNS C51100 Bolts, UNS C51000 Phosphor Bronze Eye Bolts
Length of Phosphor Bronze C51000 H08 Washer 3 mm to 200 mm
Phosphor Bronze Fasteners/ Bolts Size M8, M12, M36 M5, M2.5, M16, M2, M6, M4, M20, M3, M24, M30, M10, M14 to M160
ASTM C54400 Phosphor Bronze Screw Standard:

ANSI – American National Standards Institute

  • C54400 Phosphor Bronze Hex nuts are defined in ASME B18.2.2
  • ANSI B 28.2.4 1M
  • ASME B18.5
  • ANSI B 18.2.4 2M
  • Phos Bronze Stud Bolt length is defined in ASME B16.5 standard

ISO – International Organization for Standardization: JIS standards, ISO 4033, ISO 4032,

UTS – Unified Thread Standard: NPT, UNF, NPTF, UNS, UNEF, UNC,

DIN: 934, 931, 970, 933,

510 Phosphor Bronze Bolts, Studs Threads: UNC, METRIC, BSW, BSF, UNF, or as required
  • Manufacturer of CNC Machined Phosphorous Bronze Fasteners, Nut / Bolt; up to M100 / 4” Dia, up to 1500mm long
  • Manufacturer of Hot Forged Cda-510 Phosphor Bronze Hex Screw, Nut / Bolt; up to M36 / 1-1/2” Dia, up to 1100mm long
Source of raw materials to manufacture Cda 510 Phosphor Bronze Bolts JSPL, Tata Steel, Usha Martin, RINL, Mukund Steel, Dhamm Steeletc.
Head drive: Slotted, Phillips, Six-Lobe, Phillips/Slot, etc
C51000 Bronze Nut In the Form of: Threading as per Gauge, Round, Hex, Square Etc.
Phos Bronze Hex Bolt Thread Metric Coarse
Phosphorous Bronze Fasteners finishing:

black oxide,

Geometry, Zinc (yellow, white, blue, black), anodizing, Dacroment, plated zinc-nickel, nickel plated, Stainless steel: Passivated

Self-Colour, Sherardized, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Mechanically Applied coating and some special ones like DACROMET

C54400 Phosphor Bronze Bolting Test Certificate: as per EN 10204 / 3.1 Manufacturer Test Certificate
Ready stock available metric Phosphorous Bronze Fasteners
  • C54400 Phosphor Bronze Bolts M16 x 45mm DIN933
  • Phosphor Bronze Spring Washer M16
  • UNS C51100 Bolts M20 x 75mm
  • C51000 Phosphor Bronze Bolts M16 X 35mm
  • 510 Phosphor Bronze Bolts M16 X 60mm
  • ASTM C54400 Phosphor Bronze Bolts M20 x 70mm
  • Phosphor Bronze C51000 H08 Bolts M12 X 70mm
  • Phos Bronze Bolts M16 x 65mm DIN933
  • Phosphor Bronze Hex Nut M16
  • UNS C51000 Phosphor Bronze Bolts M12 X 90mm
  • Alloy 510 Phosphor Bronze Bolts M16 X 55mm
UNS C51000 Phosphor Bronze Bolts types Phos Bronze Flange Bolts, Hex Bolts, Lag Bolts, Hex Head Bolts, Eye Bolts, Square Bolts, T Bolts, U Bolts, Countersunk Bolts, etc.
Production process machining and CNC for Customized connecting elements, hot forging M24-M100, M2-M24: Cold Forging,
C51000 Phosphor Bronze bolting materials Surface Coating:
  • Cadmium Coated 510 Phosphor Bronze Fasteners
  • Xylon Coated Phosphor Bronze Spring Fasteners
  • Teflon Coated Phosphorous Bronze Fasteners
  • PTFE Coated Phosphor Bronze Fasteners
  • Zinc Coated C54400 Phosphor Bronze Fasteners
  • Hot Dipped Galvanizing Coated Alloy 510 Phosphor Bronze Fasteners
  • Phosphate Coated Phos Bronze Fasteners

Manufacturer of all surface finishes in C510 Phosphor Bronze Stove including  Galvanised, Zinc, Electroless Nickel, Sherardized, Geomet & PTFE, and Dacromet.

C510 Phosphor Bronze Fasteners Packing IN BULK: pallet, canton, carton / Small box/pallet, or customer request


Chemical Composition Of Phosphorous Bronze Fasteners














Phosphorous Bronze Fasteners Mechanical Properties

Tensile Strength, min

60 ksi

415 MPa

Yield Strength  .5% ext under load min



Elongation in 2 in. or 50 mm min, %



Brinell Hardness, min



Machinability Rating



Phosphorous Bronze Fasteners Equivalent Grades

CDA ASTM ASARCON SAE AMS Federal Military Other
C54400 B139   J461 J463        


Phosphorous Bronze Fasteners Physical Properties

Density g/cm³


Melting Temperature Range °C


Thermal Conductivity W/mK


Electrical Resistivity μΩ.m15°C


Coefficient of Thermal Expansion 0-250°C


Relative Magnetic Permeability

< 1.01

Coefficient of Friction


DIN And ISO Designations Of 510 Phosphor Bronze Fasteners (Nut Bolts Screw Washer)

DIN No. of Phosphorous Bronze Fasteners



Slotted Pan Head Machine Screws


Slotted Cheese Head Machine Screws


Flat Washer (without Chamfer)


Cotter Pin


Split Lock Washer


Flat Washer (with Chamfer)


Wing Nut


Spring Wave Washer


Long Arm Hex Key


Machine Screws Hex Nut, Finished Hex Jam Nut


Hex Socket Set Screws


Hex Socket Head Cap Screws


Hex Head Cap Screws are Fully Threaded


Hex Head Cap Screws Partially Threaded


Double End Stud


Finished Hex Nut


Hex Head Cap Screws Fully Threaded


Hex Head Cap Screws Partially Threaded


Slotted Oval Head Machine Screws


Slotted Flat Head Machine Screws


Phillips Oval Head Machine Screws


Phillips Flat Head Machine Screws


Threaded Rod


Hex Nylon Insert Lock Nut


Hex Steel Prevailing Torque Lock Nut


External Tooth Lock Washer


Rod Coupling Nut


Hex Flat Socket Head Cap Screws


Hex Low Socket Head Cap Screws


Internal Tooth Lock Washer


Phillips Pan Head Machine Screws


Hex Flange Nut


Hex Flange Head Screws

ISO 7380

Hex Button Socket Head Cap Screws

ISO 7379

Hex Socket Head Shoulder Screws


Types of Phosphorous Bronze Fasteners

  • CuSn8p Bolts
  • Phosphor Bronze Flat Washer
  • C510 Bronze Washer
  • C510 Bronze Fasteners
  • Phosphor Bronze Hex Bolts
  • Phosphor Bronze Screws
  • PB washers
  • Bronze bolts
  • Phos Bronze 510 Socket Head Cap Screw
  • Phosphor Bronze Nuts And Bolts
  • CuSn8p Hex Bolts
  • Phosphor Bronze Bolts
  • Phosphor Bronze Fasteners
  • C510 Bronze Screws
  • Phosphor Bronze Wood Screws
  • Phos Bronze 510 Washer
  • Phosphor Bronze Stud Bolts
  • Phos Bronze Hex Nuts
  • Phosphor Bronze Threaded Rod
  • Phos Bronze Wood Screws
  • Phosphor Bronze Machine Screws
  • UNS C51000 Hex Nuts
  • Alloy 510 Stud Bolt
  • M10 Phos Bronze 510 Washer

Countries We Export:

Afghanistan, Albania, Algeria, Andorra, Angola, Antigua-Barbuda Argentina, Armenia, Australia, Austria, Azerbaijan, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bhutan, Bolivia, Bosnia-Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Burkina-Faso, Burundi, Côte d’Ivoire, Cabo Verde, Cambodia, Cameroon, Canada, Central African Republic, Chad, Chile, China, Colombia, Comoros, Congo (Congo-Brazzaville), Costa-Rica, Croatia, Cuba, Cyprus, Czechia (Czech Republic), Democratic Republic of the Congo, Denmark, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Eswatini (fmr. “Swaziland”), Ethiopia, Fiji, Finland, France, Gabon, Gambia, Georgia, Germany, Ghana, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Holy See, Honduras, Hungary, Iceland, India, Indonesia, Iran, Iraq, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Marshall Islands, Mauritania, Mauritius, Mexico, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Morocco, Mozambique, Myanmar (formerly Burma), Namibia, Nauru, Nepal, Netherlands, New Zealand, Nicaragua, North Korea, North Macedonia, Norway, Oman, Pakistan, Palau, Palestine-State, Panama, Papua, New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Romania, Russia, Rwanda, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa, San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, South Korea, South Sudan, Spain, Sri Lanka, Sudan, Suriname, Sweden, Switzerland, Syria, Tajikistan, Tanzania, Thailand, Timor-Leste, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Tuvalu, Uganda, Ukraine, United Arab Emirates, United Kingdom, United States of America, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen, Zambia, Zimbabwe.

Cities We Supply:

London, New-York, Paris, Moscow, Tokyo, Dubai, Singapore, Barcelona, Los-Angeles, Madrid Rome, Chicago, Toronto, San-Francisco, Abu-Dhabi, St-Petersburg, Amsterdam, Berlin Prague, Washington,Istanbul, Las-Vegas, Doha, Seoul, Sydney, Beijing,  Miami, Munich, Milan, San-Diego, Bangkok, Vienna, Dublin, Vancouver, Boston,  Zurich,  Melbourne, Budapest, Houston, Seattle, Montreal, Hong-Kong, Frankfurt, Sao-Paulo, Tel-Aviv, Copenhagen, Calgary, Orlando, Atlanta, Dallas, Hamburg, Osaka, Lisbon, Austin, Phoenix Naples, Oslo, Denver, Stockholm, Riyadh, Delhi, Buenos Aires, San-Jose, Brussels, Portland Philadelphia, Ottawa, Helsinki, Valencia, Brisbane, Warsaw, Minneapolis, Shanghai, Lyon, Adelaide, Edmonton, Marseille, Muscat, Athens, Stuttgart, Rio-De-Janeii, Baltimore, Auckland, Cologne, New-Orlean, Kuwait-City,  Kiev, Hanover, Perth, Minsk, Bucharest, Nashville, Dusseldorf, Manchester, Sacramento, Glasgow, Mexico-City, Salt-Lake-Ci, Raleigh, Cracow