Home » Mechanical Parts & Spares » Stainless Steel Hex Nut » High Tensile IS 6623 High Strength Structural Nuts 10S M20, Diameter: 20 mm
High Tensile IS 6623 High Strength Structural Nuts 10S M20, Diameter: 20 mm
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Product Specifications
| Material | High Tensile Steel |
| Availability | In Stock |
| Availabilyty | Exstock |
| Boron (B) | 0.003 – 0.005 |
| Carbon (C) | 0.25 – 0.55 |
| Country of Origin | Made in India |
| Diameter | 20 mm |
| Grade | Grade 10S |
| Hardness (HBW) | 320 – 370 |
| Impact Strength (Charpy V) | ≥ 27 J at room temp |
| Manganese (Mn) | 0.50 – 1.00 |
| Nut Type | High Tensile |
| Others (Mo/Cr/Ni) | As required for strength |
| Phosphorus (P) | ≤ 0.035 |
| Proof Load Stress (MPa) | 830 min |
| Size | M20 |
| Sulphur (S) | ≤ 0.035 |
| Surface Finish | Blackened / Galvanized / HDG / Phosphated |
| Tensile Strength (MPa) | 1040 – 1220 |
GST No - 27AARCA3096L1Z0 | Member since 2026
G6-A, Unit No. 10, Sagar Industrial Estate, Dhumal Nagar Waliv, District Thane Vasai - 401208, Maharashtra, India
High Tensile IS 6623 High Strength Structural Nuts 10S M20, Diameter: 20 mm Read More...
Product Details
High Tensile IS 6623 High Strength Structural Nuts – Class 10S 1. Standard & Grade IS 6623: Indian Standard for High Strength Structural Nuts Property Class: 10S (equivalent to ISO 898-2, Grade 10) Material: Medium carbon alloy steel, heat-treated (quenched & tempered) 2. Chemical Composition (Typical Range as per IS 6623 / ISO 898-2) Element% (Approx.) Carbon (C) 0.25 – 0.55 Manganese (Mn) 0.50 – 1.00 Phosphorus (P) ≤ 0.035 Sulphur (S) ≤ 0.035 Boron (B) 0.003 – 0.005 Others (Mo/Cr/Ni) As required for strength 3. Mechanical Properties – IS 6623 (Class 10S Nuts) PropertyRequirement Proof Load Stress (MPa) 830 min Tensile Strength (MPa) 1040 – 1220 Hardness (HBW) 320 – 370 Impact Strength (Charpy V) ≥ 27 J at room temp Surface Finish Blackened / Galvanized / HDG / Phosphated 4. Applications of High Strength Structural Nuts (IS 6623 10S) Steel Structures – Bridges, towers, heavy industrial sheds Infrastructure Projects – Metro, railways, airports, highways Construction – High-rise buildings, stadiums, power plants Oil & Gas, Refineries – For structural bolted joints Heavy Engineering – Equipment foundations requiring vibration resistance 5. Why Choose Aanuraj Fasteners for IS 6623 10S Structural Nuts? ✅ Precision Manufacturing: Forged and CNC-machined for accuracy in fit. ✅ Certified Materials: Manufactured from tested alloy steels with mill certificates. ✅ Heat Treatment Excellence: Quenched & tempered for required hardness & toughness. ✅ Quality Assurance: Proof load, hardness, and metallurgical testing as per IS standards. ✅ Surface Protection: Available in zinc plated, hot dip galvanized, and black oxide finish. ✅ Trusted in Projects: Widely supplied for infrastructure, bridges, and heavy structural applications across India. ⚡ Conclusion: Aanuraj Fasteners Pvt Ltd supplies IS 6623 High Strength Structural Nuts – 10S that guarantee safety, reliability, and durability in critical structural connections. Our nuts are engineered to match high tensile structural bolts (IS 3757, Grade 10.9S), ensuring performance in heavy-duty construction and infrastructure projects.
G6-A, Unit No. 10, Sagar Industrial Estate, Dhumal Nagar Waliv, District Thane Vasai - 401208, Maharashtra, India
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