High Strength Structural Bolts (IS 3757)
Equivalent Standard: ISO 3757
Structural bolts are used for applications which require extremely high strength fastening – mostly steel to steel. The fasteners used in structural applications are often shorter, wider and have a larger bearing surface to increase their load-bearing abilities. Structural bolts and nuts from ITA Fasteners comply with national and international standards like the ISO and ASTM. They come in stainless steel, alloy steel, and carbon steel materials and are galvanised for improved durability. We also provide custom structural fasteners like washers for your bolts. Our fasteners come in a wide range of dimensions for all your requirements.
- IS 3757
- Material Grade: 8.8, 10.9
- Finish: Self, Zinc Plated, Hot Dip Galvanized
- Thread: METRIC
IS 3757
Hight Strength Structural bolts IS 3757 are utilized for applications which require incredibly high strength securing – generally steel to steel. The latches utilized in underlying applications are regularly more limited, more extensive and have a bigger bearing surface to build their heap bearing capacities. Underlying screws and nuts from BRK Industries agree with public and global norms like the ISO and ASTM. They come in treated steel, compound steel, and carbon steel materials and are electrifies for further developed solidness. We additionally give custom underlying clasp like washers for your bolts. Our latches arrive in a wide scope of measurements for every one of your prerequisites Hight Strength Structural bolts IS 3757.
Technical Specification for High Strength Structural bolts (IS 3757)
| THREAD SIZE D | M16 | M20 | (M22) | M24 | (M27) | M30 | M36 | |
|---|---|---|---|---|---|---|---|---|
| P Pitch of thread | 2 | 2.5 | 2.5 | 3 | 3 | 3.5 | 4 | |
| bref for length / Nom <100/>100 | 31 | 36 | 38 | 41 | 44 | 49 | 56 | |
| 38 | 43 | 45 | 48 | 51 | 56 | 63 | ||
| c | Max | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
| Min | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | |
| da | Max | 18.7 | 23.24 | 25.24 | 27.64 | 31.24 | 34.24 | 41.00 |
| ds | Max | 16.70 | 20.84 | 22.84 | 24.84 | 27.84 | 30.84 | 37.00 |
| Min | 15.30 | 19.16 | 21.16 | 23.16 | 26.16 | 29.16 | 35.00 | |
| dw | Max | † | † | † | † | † | † | † |
| Min | 24.9 | 31.4 | 33.3 | 38.0 | 42.8 | 46.5 | 55.9 | |
| e | Min | 29.56 | 37.29 | 39.55 | 45.20 | 50.85 | 55.37 | 66.44 |
| k | Nom | 10 | 12.5 | 14 | 15 | 17 | 18.7 | 22.5 |
| Max | 10.75 | 13.40 | 14.90 | 15.90 | 17.90 | 19.75 | 23.55 | |
| Min | 9.23 | 11.60 | 13.10 | 14.10 | 16.10 | 17.65 | 21.45 | |
| k’ | Min | 6.5 | 8.1 | 9.2 | 9.9 | 11.3 | 12.4 | 15.0 |
| r | Min | 0.6 | 0.8 | 0.8 | 1.0 | 1.2 | 1.2 | 1.5 |
| s | Max | 27 | 34 | 36 | 41 | 46 | 50 | 60 |
| Min | 26.16 | 33 | 35 | 40 | 45 | 49 | 58.8 | |
| Chamfer length z | Max | 3 | 3.8 | 3.8 | 4.5 | 4.5 | 5.3 | 6 |