High Yield Carbon Steel Fasteners Manufacture and Exporter
We are one of the leading Manufacturer, Exporter and Supplier of High quality Carbon Steel Fasteners in mumbai, India. We also offer a complete range of Carbon Steel Fasteners such as Bolts, Nuts, Washer, Screw, threaded rod and stainless screws etc. These Carbon Steel Fasteners are widely used in various application industry. These Carbon Steel Fasteners are available in different size, shapes, grades, specification & thickness as per the clients requirments. We provide products as per DIN, ANSI, JIS standards.

Specification | ||
Standard | : | ASTM / ASME A/SA 193 / 194 |
Sizes | : | “¼ to 4” |
Length | : | UPTO 5 METERS |
Specification | : | IS, BS, ASTM |
Type | : | Bolts, nuts, Washers, Anchor Fasteners, Stud Bolts, Eye Bolt, Stud, Threaded Rod, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners, etc. |
Types Of Carbon Steel Fasteners :
Bolts, Nuts, Screws, Sockets, Studs, Screw, Hex Set Screw, Socket Screw, Cap Screw, Pan Head Screw, Machine Screw, Socket Head Cap Screw, Allen Cap screw, Wing Screw, Washers, Spring Washers, Studs, Anchors, Marine Anchors, Nut, Hexagon Nut, Hex Nut, Hex Coupling Nut, Hex Domed Cap Nuts, Square Nut, Stud Bolts, Hex Head Bolts, Socket Hexagon Head Screw Anchor Bolt, U- Bolts, J Bolts, Mushroom Head Square Neck Bolts, T-Head Bolts, Wing Screw, Eye Bolt, Foundation Bolts, Structural Bolts.
Chemical Composition of Carbon Steel fasteners:
BS 970: 1955 | Chemical Composition | |||||||
C % | Si % | Mn % | Ni % | Cr/strong> % | 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 |
BS 970 1991 | BS 970 1955 EN | AISI/SAE | Werkstoff |
070M20 | EN3B | 1020 | 1.0402 |
220M07 | EN1A | 1113 | 1.0711 |
230M07 | EN1A | 1213 | 1.0715 |
080M40 | EN8 | 1040 | 1.1186 |
080A42 | EN8D | 1042 | – |
070M55 | EN9 | 1055 | 1.0535 |
605M36 | EN16 | – | – |
708M40 | EN19 | 4140 | 1.7225 |
817M40 | EN24 | 4340 | 1.6582 |
High Temperature Bolting Steels of carbon Steel Fasteners:
High Temperature Bolting Steels | |||||
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 |
Mechanical Properties of Carbon Steel fasteners:
Mechanical Properties ISO 898-1 Bolting | |||||||
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 |