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Mumbai, India-based The Fasteners Mart offers an extensive selection of high-performance fasteners. Our High Tensile Grade 9.8 Bolts are constructed of alloy or medium carbon steel and usually heat-treated for added strength and are standard hexagonal shape. These bolts have superior tensile strength and wear resistance and are suitable for automobile, mechanical and heavy structure applications.
High Tensile Grade 9.8 bolts are produced from medium carbon or alloy steel with carbon, manganese, chromium, and molybdenum as the constituent elements. The elements strengthen them, make them tougher, and resist wear. They are mechanically provided with a minimum tensile strength of 900 MPa and yield strength of about 720 MPa. It makes them appropriate for severe load conditions. In terms of physics, they are highly hard, dimensionally stable, and fatigue resistant. These characteristics render Grade 9.8 bolts suitable for heavy stress applications within the automotive, heavy equipment and industrial assemblies that are demanding strong and durable fastening solutions.
| Strength class | Material and heat treatment | Chemical composition (analysis on the product) % | Minimum hardening temperature °C | ||||
|---|---|---|---|---|---|---|---|
| C | P | S | B | ||||
| min | max | max | max | max | |||
| Grade 9.8 | Carbon or alloy steel (B, Mn, Cr), quenched and tempered | 0,15 | 0,40 | 0,025 | 0,025 | 0.003 | 425 |
| Markings & Mechanical Prperties | ||||||
|---|---|---|---|---|---|---|
| Grades | Markings | Size Range | PS [MPa] | YS (min) [MPa] | TS (min) [MPa] | Hardness [Rockwell] |
| Class 9.8 |  | 1.6–16 | 650 | 720 | 900 | C27–36 |
| 9.8 Grade Fasteners Sizes | M2-M100 (Cold/ Hot forged) |
| Grade 9.8 Bolt Length | 3 mm to 200 mm |
| Class 9.8 Bolts Size Metric |
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| Grade 9.8 Hex Bolts Size Inch |
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| Standard | Manufacturer of Grade 9.8 Bolt as per IS, ANSI, ASTM, DIN, ISO, JIS, GB, ASME, BS, UNI, CSN, EU, IFI, PN, and all International Standards
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| Grade 9.8 Steel Bolts & Screws US Threads | Unified national fine (UNF), UNJC, UNJF, Unified National Coarse (UNC), Constant-pitch threads, METRIC, BSF, UNR, BSW, Unified national extra fine (UNEF), UNK |
| Grade 9.8 Bolts Head drive | Phillips/Slot, Phillips, Slotted, Six-Lobe, etc |
| Material Origin | Grade 9.8 Bolt are Western European. Eastern origin possible on request. |
| Grade 9.8 Nut Bolt Surface Finish & Coating |
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| BS 3692 grade 9.8 Fasteners types | Hex Domed Cap Nuts, Stud Bolts, Foundation Bolts, Hex Coupling Nut, Pan Head Screw, T-Head Bolts, Eye Bolt, Socket Screw, Bolts, Machine Screw, J Bolts, Washers, Socket Head Cap Screw, Anchors, Marine Anchors, Structural Bolts, Square Nut, Hex Set Screw, Allen Cap screw, Nut, Socket Hexagon Head Screw, U Bolts, Studs, Anchor Bolt, Screw, Spring Washers, Hex Head Bolts, Sockets, Nuts, Wing Screw, Cap Screw, Studs, Hex Nut, Hexagon Nut, Mushroom Head Square Neck Bolts, Wing Screw, Screws |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
High Tensile Grade 9.8 bolts have a broad application in areas that necessitate high strength and durability under stress. They are perfectly suited for use in automotive parts, heavy machinery, industrial equipment, and structural steel assemblies. These bolts are typically applied in engine mounts, suspension systems, gearboxes, and load-carrying joints where high tension and vibration resistance are essential. In construction and manufacturing industries, they provide safe fastening in high-load applications. With their superior mechanical properties Grade 9.8 bolts provide dependable performance in dynamic and static conditions, and they are a favorite in critical fastening applications.
At The Fasteners Mart we guarantee quick and safe delivery of High Tensile Grade 9.8 bolts to customers in India and abroad. Bolts are packed securely in HDPE bags, corrugated boxes, or wooden crates depending on quantity and shipping needs. Each shipment is properly labeled, providing safe handling, protection against damage and convenient identification during transportation.
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
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