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PHOSPHOR BRONZE FASTENERS

Parmar Steel specializes in high-quality phosphor bronze fasteners, known for their exceptional strength and durability. These fasteners, composed of copper, tin, and phosphorus, offer superior resistance to corrosion and wear, making them ideal for marine, electrical, and industrial applications. The precision manufacturing process ensures consistent performance and reliability, meeting stringent industry standards. Parmar Steel commitment to quality and innovation positions them as a trusted supplier for critical fastening solutions. Whether used in harsh environments or for delicate electronic components, Parmar Steel phosphor bronze fasteners deliver outstanding performance, ensuring long-lasting and secure connections. Choose Parmar Steel for top-tier phosphor bronze fasteners that meet the demands of today's advanced engineering projects.

Phos Bronze Fasteners Material Specification	UNS C51000 Phosphor Bronze Eye Bolts, UNS C51100 Bolts
C54400 Phosphor Bronze Fasteners / Bolts Standard	DIN, UNI, ISO, JIS, GB, IS, BS, ASME, ANSI, ASTM and all International Standards
Phosphor Bronze Fasteners/ Bolts Size	M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30, M36 to M160
Length of Phosphor Bronze C51000 H08 Washer	3 mm to 200 mm
510 Phosphor Bronze Bolts, Studs Threads:	METRIC, BSW, BSF, UNC, UNF or as required
ASTM C54400 Phosphor Bronze Screw Standard:	ANSI – American National Standards Institute ANSI B 18.2.4 2M ANSI B 28.2.4 1M Phos Bronze Stud Bolt length are defined in ASME B16.5 standard C54400 Phosphor Bronze Hex nuts are defined in ASME B18.2.2 ASME B18.5 DIN: 931, 933, 934, 970 UTS – Unified Thread Standard : UNC, UNF, UNEF, UNS, NPT, NPTF ISO – International Organization for Standardization : ISO 4032, ISO 4033, JIS standards
Source of raw materials to manufacture Cda 510 Phosphor Bronze Bolts	Tata Steel, JSPL, RINL, Usha Martin, Dhamm Steel, Mukund Steel etc.
SCOPE	Manufacturer of Hot Forged Cda-510 Phosphor Bronze Hex Screw, Nut / Bolt; up to M36 / 1-1/2” Dia, up to 1100mm lg Manufacturer of CNC Machined Phosphorous Bronze Fasteners, Nut / Bolt; up to M100 / 4” Dia, up to 1500mm lg
C51000 Bronze Nut In Form of:	Hex, Square, Round, Threading as per Gauge Etc.
Head drive:	Phillips, Slotted, Phillips/Slot, Six-Lobe, etc
Phos Bronze Hex Bolt Thread	Metric Coarse
C54400 Phosphor Bronze bolting Test Certificate:	Manufacturer Test Certificate as per EN 10204 / 3.1
Phosphorous Bronze Fasteners finishing:	Zinc (yellow, white, blue, black), black oxide, Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Stainless steel: Passivated Self-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Mechanically Applied coating and some special one like DACROMET
Production process	M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element
UNS C51000 Phosphor Bronze Bolts types	Phos Bronze Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Counter sunk Bolts etc.
Phosphor Bronze C51000 H08 Nut types	Phos Bronze Hex Head Nut, Eye Nut, Dome Nut, Wing Nut, T Nut, Panel Nut, Lock Nut, Coupling Nut, Square Nut, Acorn Nut etc.
Phos Bronze Screws types	Phos Bronze Hex Head Cap Screws, Socket Set Screws, Anchor Screws, Blind Rivet, Socket Head Screws, Concrete Screws, Shoulder Screws, Panel Screws, Threaded Screws, Machine Screws etc.
C54400 Phosphor Bronze Washer types	Phos Bronze Machine Washers, Flat Washer, Star Washers, Sealing Washer, Lock Washer, Split Washer in India
C510 Phosphor Bronze Fasteners Packing:	IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request
Ready stock available metric Phosphorous Bronze Fasteners	Phos Bronze Bolts M16 x 65mm DIN933 C54400 Phosphor Bronze Bolts M16 x 45mm DIN933 Phosphor Bronze Hex Nut M16 Phosphor Bronze Spring Washer M16 510 Phosphor Bronze Bolts M16 X 60mm Alloy 510 Phosphor Bronze Bolts M16 X 55mm C51000 Phosphor Bronze Bolts M16 X 35mm UNS C51000 Phosphor Bronze Bolts M12 X 90mm Phosphor Bronze C51000 H08 Bolts M12 X 70mm ASTM C54400 Phosphor Bronze Bolts M20 x 70mm UNS C51100 Bolts M20 x 75mm
C51000 Phosphor Bronze bolting materials Surface Coating:	Teflon Coated Phosphorous Bronze Fasteners Phosphate Coated Phos Bronze Fasteners Zinc Coated C54400 Phosphor Bronze Fasteners Ptfe Coated Phosphor Bronze Fasteners Xylon Coated Phosphor Bronze Spring Fasteners Cadmium Coated 510 Phosphor Bronze Fasteners Hot Dipped Galvanizing Coated Alloy 510 Phosphor Bronze Fasteners Manufacturer of all surface finishes in C510 Phosphor Bronze Stove including Zinc, Galvanised, Sherardized, Electroless Nickel, Dacromet, Geomet & PTFE.

UNS C51900 THREADED ROD DIMENSION CHART

Nominal Size of Basic Bolt Dia.	E		F			G		H			R		LT (Ref)	Y (Ref)	Runout of Bearing Surface FIR
Nominal Size of Basic Bolt Dia.	Body Diameter		Width Across Flats			Width Across Corner		Height			Radius Of Fillet		Thread Length	T ransi- tion Thread Length	Runout of Bearing Surface FIR
	Max	Min	Basic	Max	Min	Max	Min	Basic	Max	Min	Max	Min	Basic	Max	Max
1/2 0.5000	0.515	0.482	7/8	0.875	0.850	1.010	0.969	5/16	0.323	0.302	0.031	0.009	1.00	0.19	0.016
5/8 0.6250	0.642	0.605	1-1/16	1.062	1.031	1.227	1.175	25/64	0.403	0.378	0.062	0.021	1.25	0.22	0.019
3/4 0.7500	0.768	0.729	1-1/4	1.250	1.212	1.443	1.383	15/32	0.483	0.455	0.062	0.021	1.38	0.25	0.022
7/8 0.8750	0.895	0.852	1-7/16	1.438	1.394	1.660	1.589	35/64	0.563	0.531	0.062	0.031	1.50	0.28	0.025
1 1.0000	1.022	0.976	1-5/8	1.625	1.575	1.876	1.796	35/64	0.627	0.591	0.093	0.062	1.75	0.31	0.028
1-1/8 1.1250	1.149	1.098	1-13/16	1.812	1.756	2.093	2.002	11/16	0.718	0.658	0.093	0.062	2.00	0.34	0.032
1-1/4 1.2500	1.277	1.223	2	2.000	1.938	2.309	2.209	25/32	0.813	0.749	0.093	0.062	2.00	0.38	0.035
1-3/8 1.3750	1.404	1.345	2-3/16	2.188	2.119	2.526	2.416	27/32	0.878	0.810	0.093	0.062	2.25	0.44	0.038
1-1/2 1.5000	1.531	1.470	2-3/8	2.375	2.300	2.742	2.622	15/16	0.974	0.902	0.093	0.062	2.25	0.44	0.041

PHOSPHOR BRONZE WOOD SCREWS TORQUE CHART

C54400 Phosphor Bronze Bolts Nominal Diameter (in)	Threads (in)	Torque ft-lb (Dry)	Torque ft-lb (Lubricated)
1/4″	20	6.5	4.8
	28	7.4	5.5
5/16″	18	13.2	10.0
	24	14.7	11.0
3/8″	16	23.5	17.7
	24	26.6	19.9
7/16″	16	37.6	28.2
	24	42.0	31.5
1/2″	13	57.4	43.0
	20	64.7	48.5
9/16″	12	82.7	62.1
	18	92.3	69.2
5/8″	11	114.2	85.7
	18	129.3	97.0
3/4″	10	203	152
	16	226	170
7/8″	9	326	245
	14	361	270
1″	8	490	368
	14	549	412
1-1/4″	7	853	639
	12	944	708
1-1/2″	6	1484	639
	12	1669	1252

PHYSICAL PROPERTIES OF PHOS BRONZE HEX BOLT

Physical Properties	Metric	English	Comments
Density	8.8 g/cc	0.318 lb/in³	at 20°C (68°F)
Mechanical Properties
Hardness, Rockwell B	85	85
Tensile Strength, Ultimate	550 MPa	79800 psi
Tensile Strength, Yield	450 MPa	65300 psi
Elongation at Break	33 %	33 %	in 50 mm
Modulus of Elasticity	110 GPa	16000 ksi
Poisson’s Ratio	0.341	0.341
Machinability	20 %	20 %	UNS C36000 (free-cutting brass) = 100%
Shear Modulus	41 GPa	5950 ksi
Electrical Properties
Electrical Resistivity	1.33e-005 ohm-cm	1.33e-005 ohm-cm	at 20°C (68°F)
Thermal Properties
CTE, linear 250°C	18.2 µm/m-°C	10.1 µin/in-°F	from 20-300°C (68-570°F)
Heat Capacity	0.38 J/g-°C	0.0908 BTU/lb-°F
Thermal Conductivity	62 W/m-K	430 BTU-in/hr-ft²-°F	at 20°C (68°F)
Melting Point	880 – 1025 °C	1620 – 1880 °F
Solidus	880 °C	1620 °F
Liquidus	1025 °C	1880 °F
Processing Properties
Annealing Temperature	475 – 675 °C	887 – 1250 °F

PHOSPHOR BRONZE BOLTS AND NUTS COMPOSITION CHART

Cu%	Sn%	Pb%	Zn%	Fe%	P%
Remainder	3.50-4.50	3.00-4.00	1.50-4.50	0.10	0.01-0.50

PHOSPHOR BRONZE BOLT MECHANICAL PROPERTIES DATABASE

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

We Shine For Premier Quality Product

The company has over two decade long record of servicing customers in India as well as all over the world. The company attaches significant emphasis on ensuring adherence to quality standards at all levels.

The basic thrust of the quality philosophy is summed up in the company's Quality Policy which serves as the bench mark of all functions executed by the company. Strict quality assurance system is being followed in all our departments and Total Quality Management is applied to streamline and all the procedures and practices in operation to achieve high standard of efficiency.