Rajgranth Fasteners also deals in manufacturing high quality HSFG Bolts that cater to most challenging structural requirements. High Strength Friction Grip (HSFG) bolts are designed to take a heavy tension, which is why they are used in the case of heavy engineering projects as well as critical infrastructure works. Our products are produced to the international standards and that makes them matchless in precision, durability, and resistance to stress.
Rajgranth Fasteners is a trusted maker and exporter of HSFG bolts, having cutting-edge machines and stringent quality control procedures, Rajgranth produces the bolts that have unique mechanical properties. Its bolts have slip-critical joints, thus they offer exceptional grips and load-carrying abilities, without affecting the ability to maintain the integrity of structures. We offer precision engineering solutions to endure large scale client requirements whether you need standard or custom sizes.
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Our customers or the industries we serve include construction, bridges, steel structures, wind energy, oil & gas and infrastructure development. As reputable suppliers and distributors of HSFG bolts, we can supply you with ready stocks of any one of our products at a moment of short notice and deliver as fast as possible to reduce down time in your work. Our team of experienced professionals provides assistance to clients by recommending the most appropriate fastening solution in regard to the project requirements, the desired load conditions as well as site specification.
Our entire HSFG bolts are fabricated in high-grade alloy and carbon steel with hot dipped galvanized or plain-finishes depending on the choice of the customer. The bolts are strict on tensile strength, proof loading, hardness, and dimensions. We are the prominent HSFG bolt stockists and suppliers, and thus we work hard to ensure there is uniformity and stability in each of the batches that we release in the international markets.
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We also provide third party inspection certificates, the traceability of the materials and complete ASTM, IS, BS and DIN standards at Rajgranth Fasteners. We have an effective logistics system that ensures fast delivery of goods on a global level and our HSFG bolts are exported frequently to the Middle East, Africa, Southeast Asia, and Europe. Our position as one of the biggest HSFG bolt exporters having the reputation of being consistent and of unremovable quality is further impounded by this global footprint.
In case of hi-spec fastening solutions, Rajgranth Fasteners would be your Fasteners provider in case of HSFG bolts. Our goal is to disseminate products that conform to utmost strength, safety, and sustainability. We use a customer-centric platform, heavy production capacity, and years of experience in producing Fasteners and we still maintain industry standards in the global Fasteners market.
Specifications
| Size Range | Material | Thread Type | Finish | Strength Grade | Head Type | Standards |
|---|---|---|---|---|---|---|
| M6 to M64 | Alloy Steel, Carbon Steel | Metric, UNC, UNF | Zinc Plated, Hot Dip Galvanized, Black Oxide | 8.8, 10.9, 12.9 | Hexagonal | DIN 933, ISO 4017, ASTM A325 |
| 1/4" to 2.5" | Stainless Steel (SS304, SS316) | BSW, BA, BSP | Plain, PTFE Coated | A2-70, A4-80 | Hex Head | BS 1083, ANSI B18.2.1 |
HSFG Bolts Standards & Size Range
| Size Range | Standards |
|---|---|
| Diameters: M16 to M36 (Metric) | IS 4000 / IS 3757 – Indian standards for HSFG structural bolts |
| Diameters: 3/4" to 1-1/2" (Imperial) | ASTM A325 / ASTM A490 – American high-strength structural bolt standards |
| Lengths: Variable | EN 14399-4 – European standard for high-strength structural bolts |
Material & Strength Grades
| Material Type | Available Strength Grades | Industry Standards |
|---|---|---|
| Carbon Steel & Alloy Steel | 8.8, 10.9, 12.9 | IS 4000, IS 3757, EN 14399-4 |
| High-Tensile Steel | Class 8.8, 10.9 | ASTM A325, ASTM A490 |
Applications and Uses of HSFG Bolts
- Oil and Gas Industry
- Mining
- Construction
- Power Plant
- Refinery Industry
- Sugar Mills
- Ship Building Industry
- Marine Industry
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