CARBON STEEL SCREWS

Parmar Steel specializes in high-quality carbon steel screws, renowned for their durability and precision engineering. Crafted from premium-grade carbon steel, these screws offer exceptional strength and reliability, making them ideal for various industrial and construction applications. Parmar Steel screws are meticulously manufactured to exacting standards, ensuring consistent performance and secure fastening. Whether used in automotive assembly, infrastructure projects, or household repairs, these screws deliver superior grip and longevity. Available in a variety of sizes and configurations, Parmar Steel carbon steel screws cater to diverse needs with a promise of robustness and efficiency, backed by a legacy of craftsmanship and innovation.

SpecificationASTM / ASME A/SA 193 / 194
StandardDIN, UNI, ISO, JIS, GB, IS, BS, ASME, ANSI, ASTM and all International Standards
Fasteners/ Bolts SizeM2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30, M36 to M160
Length3 mm to 200 mm
Bolts, Studs ThreadsMETRIC, BSW, BSF, UNC, UNF or as required
Fasteners StandardANSI – American National Standards Institute: ● ANSI B 18.2.4 2M, ANSI B 28.2.4 1M, ● Stud Bolt length are defined in ASME B16.5 standard, ● Hex nuts are defined in ASME B18.2.2, ● ASME B18.5, DIN: DIN 931, DIN 933, DIN 934, DIN 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 materialsTata Steel, JSPL, RINL, Usha Martin, Dhamm Steel, Mukund Steel etc.
SCOPE OF MANUFACTUREHot Forged Fasteners, Nut / Bolt; up to M36 / 1-1/2” Dia, up to 1100mm lg, CNC Machined Fasteners, Nut / Bolt; up to M100 / 4” Dia, up to 1500mm lg
Fasteners In Form ofHex, Square, Round, Threading as per Gauge Etc.
Head drivePhillips, Slotted, Phillips/Slot, Six-Lobe, etc
bolting Test CertificateManufacturer Test Certificate as per EN 10204 / 3.1
Fasteners finishingZinc (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, Stainless Steel, Mechanically Applied coating and some special one like DACROMET
Production processM2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element
bolting materials Surface CoatingTeflon Coated Fasteners, Phosphate Coated Fasteners, Zinc Coated Fasteners, Ptfe Coated Fasteners, Xylon Coated Fasteners, Cadmium Coated Fasteners, Hot Dipped Galvanizing Coated Fasteners, All surface finishes offered including Geomet & PTFE, Galvanised, Zinc, Electroless Nickel, Sherardized, Dacromet
Popular Types of BoltsHex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Counter sunk Bolts etc.
Popular Types of NutHex Head Nut, Eye Nut, Dome Nut, Wing Nut, T Nut, Panel Nut, Lock Nut, Coupling Nut, Square Nut, Acorn Nut etc.
Popular Types of ScrewHex Head Cap Screws, Socket Set Screws, Anchor Screws, Blind Rivet, Socket Head Screws, Concrete Screws, Shoulder Screws, Panel Screws, Threaded Screws, Machine Screws etc.
Popular Types of WasherMachine Washers, Flat Washer, Star Washers, Sealing Washer, Lock Washer, Split Washer etc.
Our stockyad location for fast delivery in IndiaNoida, Bengaluru, Pimpri-Chinchwad, Mumbai, Thiruvananthapuram, Tirunelveli, Vasai, Dhanbad, Chennai, Agra, Nagpur, Hyderabad, Kolkata, Coimbatore, Pune, Jaipur, Tiruchirappalli, Shivamogga, Ahmedabad, surat, Bhubaneswar, Thane, Nashik, Navi Mumbai
Fasteners PackingIN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request

Carbon Steel Bolts Size Chart

Copper Nickel 70/30 Bolt Type SIZE PROPERTY CLASS TENSILE STRENGTH STANDARD
Copper Nickel 70/30 Hex Head Bolt / Screws M4 to M80 10.9 1040N / mm2 min ISO 4017 (Full Thread), ISO 4014 (Half Thread)
Screws Type SIZE GRADE ASME ISO ASTM
Socket Head Cap Screws M1.6 to M64 12.9 B18.3.1 M 4762 A574M
Socket Low Head Cap Screws
M4 to M20
10.9
 
 
 
Socket Head Shoulder Screws
M6 to M24
012.9
B18.3.3M
 
 
Countersunk Socket Head Screws
M3 to M20
012.9
B18.3.5M
10642
F835M
Button Head Socket Screws
M3 to M12
012.9
B18.3.4M
7380
F835M
Flange Button Head Socket Screws
M3 to M10
012.9
 
 
F835M
Knurled Point Socket Set Screws
M3 to M20
45H
B18.3.6M
4029
F912M
Flat Point Socket Set Screws
M6 to M12
45H
B18.3.6M
4026
F912M
Dog Point Socket Set Screws
M3 to M20
45H
B18.3.6M
4028
F912M
Cone Point Socket Set Screws
M3 to M12
45H
B18.3.6M
4027
F912M
Plain Point Socket Set Screws
M3 to M20
45H
B18.3.6M
4029
F912M
Taper Pressure Plug
M8 to M22
 
 
Nuts Type SIZE PROPERTY CLASS STANDARD
Hex Nut M6 to M42 10 ISO 4032
Nylock Nut M6 to M20 (Gr.8), M10 to M24 (Gr.10) 8 & `10 DIN 982
Nylock Nut M6 to M20 (Gr.8), M10 to M24 (Gr.10) 8 & 10 DIN 985
Hex Weld Nut M6 to M12 8 DIN 929

BS 970: 1955

Chemical Composition

C

%

Si

%

Mn

%

Ni

%

Cr

%

Mo

%

S

%

P

%

EN3B

0.25Max

0.35Max

1.0Max

0.06Max

0.06Max

EN1A

0.07/0.15

0.10Max.

0.80/1.20

0.20/0.30

0.07Max

EN8

0.35/0.45

0.05/0.35

0.60/1.00

0.06Max

0.06Max

EN9

0.50/0.60

0.05/0.35

0.50/0.80

0.06Max

0.06Max

EN16

0.30/0.40

0.10/0.35

1.30/1.80

0.20/0.35

0.05Max

0.05Max

EN19

0.35/0.45

0.10/0.35

0.50/0.80

0.90/1.50

0.20/0.40

0.05Max

0.05Max

EN24

0.35/0.45

0.10/0.35

0.45/0.70

1.30/1.80

0.90/1.40

0.20/0.35

0.05Max

0.05Max


Mechanical Characteristics of Carbon Steel Self Drilling Screws

Grade

Material

Size Range

Tensile Strength MPa min.

Proof Strength MPa min.

Core Rockwell Hardness

Yield Strength MPa min.

Min.

Max.

4.6

Low or Medium Carbon Steel

M5 – M39

3/16” – 1-1/2”

400

225

B67

B99.5

240

8.8

Medium Carbon Steel Q+T

M5 – M16

3/16” – 5/8”

M18 – M39

11/16” – 1-1/2”

800

830

580

600

C22

C23

C32

C34

640

660

10.9

Alloy Steel Q+T

M5 – M39

3/16” – 1-1/2”

1040

830

C32

C39

940

12.9

Alloy Steel Q+T

M1.6 – M39

#0 – 1-1/2”

1220

970

C39

C44

1100


Equivalent Material Grade Of Astm A307 Gr A Hex Bolt

Grade

Name

Werkstoff Number

ASTM

BS

Temperature Use

Durehete 900 T22

42CrMo5.6

1.7233

BS1506 631-850

Up to 480ºC

Durehete 950 T31

40CrMoV4.6

1.7711

ASTM A193 B16

BS1506 671-850

Up to 510ºC

Durehete 1055

T41

20CrMoVTiB4.10

1.7729

BS1506 681-820

Up to 570ºC

25CrMo4

1.7218

Up to 400ºC

21CrMoV5.7

1.7709

Up to 540ºC

42CrMo4

1.7225

ASTM A193 B7

BS1506 630-860

Up to 450ºC

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.

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Naresh Mali | Sales & Marketing Manager

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Parmar Steel
48/50, Hingwala Building, Office No. 8, 3rd Floor, C. P. Tank Road, Mumbai - 400004, Maharashtra, India
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