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Brian Fasteners, located in Houston, USA, has built a solid reputation as a reliable manufacturer and supplier of top-notch fasteners, including their renowned High Tensile Grade 9.8 Bolts. With a strong focus on durability and precision, this company ensures that its products meet the highest industry standards for performance and reliability. Known for their outstanding customer service and quick turnaround times, Brian Fasteners serves a wide array of industrial needs. Their High Tensile Grade 9.8 Bolts are specifically designed for tough environments, making them a go-to choice for professionals who prioritize strength, consistency, and long-lasting dependability in construction, automotive, and heavy machinery sectors.
Typically crafted from medium carbon steel and often heat-treated to boost their strength and performance, High Tensile Grade 9.8 Bolts deliver impressive tensile strength of around 800 MPa and yield strength of about 640 MPa. They showcase excellent hardness and wear resistance, making them ideal for high-stress situations. Their mechanical properties include high fatigue resistance, good ductility, and reliability under dynamic loads, which are crucial for safety-critical applications. These bolts also resist deformation and elongation under pressure, ensuring they maintain structural integrity over extended periods of use.
| 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 are commonly utilized in scenarios that demand strong, secure fastening under heavy loads. You’ll often find them in automotive assemblies, particularly in engine and suspension systems, where durability and stress resistance are vital. In the construction industry, these bolts play a key role in structural steel frameworks, bridges, and heavy-duty supports. They are also essential in mining equipment, agricultural machinery, and industrial fabrication, where safety and performance are non-negotiable. Thanks to their mechanical strength and reliability, these bolts are a must-have in industries that require precision and endurance.
Our grade 9.8 bolts are carefully loaded to prevent damage during transport. We use sturdy wooden boxes or crates that meet international standards. Each bolt is marked with the company logo, grade, size and lot number. We offer EN 10204-3.1 and EN 10204-3.2 certificates, material certificates, NABL-approved laboratory test reports, and professional test certificates. In addition, we provide 100% radiographic and third-party inspection reports to ensure strict quality control and regulatory compliance. This ensures that our bolts meet the highest safety and performance standards.
Brian Fasteners is a leading manufacturer and supplier of high-quality fasteners in Houston , USA, with over 8 years of experience serving global industries.
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