National Fasteners Was Founded By The Mr.Gurjeet Singh In The Year 2009. He Was A Visionary With A Commitment To Produce Quality Industrial Fittings And Accessories For An Emerging Industrial India.
E191, Focal Point, Ludhiana, Punjab 141010
Spring Steel
Finish: Self, Black, Bright Zinc, Hot Dip Galvanized
| "SIZE" | "d"MIN | "d"MAX | "n"NOMINAL | "n"MAX | "n"MIN | "h"NOMINAL | "h"MAX | "h"MIN | "H"MIN | "H"MAX | WEIGHTS AS PER 1000 UNITS KG |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M2 | 2.1 | 2.4 | 0.9 | 1 | 0.8 | 0.5 | 0.6 | 0.4 | 1 | 1.2 | 0.033 |
| M2.2 | 2.3 | 2.6 | 1 | 1.1 | 0.9 | 0.6 | 0.7 | 0.5 | 1.2 | 1.4 | 0.05 |
| M2.5 | 2.6 | 2.9 | 1 | 1.1 | 0.9 | 0.6 | 0.7 | 0.5 | 1.2 | 1.4 | 0.053 |
| M3 | 3.1 | 3.4 | 1.3 | 1.4 | 1.2 | 0.8 | 0.9 | 0.7 | 1.6 | 1.9 | 0.11 |
| M3.5 | 3.6 | 3.9 | 1.3 | 1.4 | 1.2 | 0.8 | 0.9 | 0.7 | 1.6 | 1.9 | 0.12 |
| M4 | 4.1 | 4.4 | 1.5 | 1.6 | 1.4 | 0.9 | 1 | 0.8 | 1.8 | 2.1 | 0.18 |
| M5 | 5.1 | 5.4 | 1.8 | 1.9 | 1.7 | 1.2 | 1.3 | 1.1 | 2.4 | 2.8 | 0.36 |
| M6 | 6.1 | 6.5 | 2.5 | 2.65 | 2.35 | 1.6 | 1.7 | 1.5 | 3.2 | 3.8 | 0.83 |
| M7 | 7.1 | 7.5 | 2.5 | 2.65 | 2.35 | 1.6 | 1.7 | 1.5 | 3.2 | 3.8 | 0.93 |
| M8 | 8.1 | 8.5 | 3 | 3.15 | 2.85 | 2 | 2.1 | 1.9 | 4 | 4.7 | 1.6 |
| M10 | 10 | 11 | 3.5 | 3.7 | 3.3 | 2.2 | 2.35 | 2.05 | 4.4 | 5.2 | 2.53 |
| M12 | 12 | 13 | 4 | 4.2 | 3.8 | 2.5 | 2.65 | 2.35 | 5 | 5.9 | 3.82 |
| M14 | 14 | 15 | 4.5 | 4.7 | 4.3 | 3 | 3.15 | 2.85 | 6 | 7.1 | 6.01 |
| M16 | 16 | 17 | 5 | 5.2 | 4.8 | 3.5 | 3.7 | 3.3 | 7 | 8.3 | 8.91 |
| M18 | 18 | 19 | 5 | 5.2 | 4.8 | 3.5 | 3.7 | 3.3 | 7 | 8.3 | 9.73 |
| M20 | 20 | 21 | 6 | 6.2 | 5.8 | 4 | 4.2 | 3.8 | 8 | 9.4 | 15.2 |
| M22 | 23 | 24 | 6 | 6.2 | 5.8 | 4 | 4.2 | 3.8 | 8 | 9.4 | 16.5 |
| M24 | 25 | 26 | 7 | 7.25 | 6.75 | 5 | 5.2 | 4.8 | 10 | 12 | 26.2 |
| M27 | 28 | 29 | 7 | 7.25 | 6.75 | 5 | 5.2 | 4.8 | 10 | 12 | 28.7 |
| M30 | 31 | 32 | 8 | 8.25 | 7.75 | 6 | 6.2 | 5.8 | 12 | 14 | 44.3 |
| M36 | 37 | 38 | 10 | 10.3 | 9.75 | 6 | 6.2 | 5.8 | 12 | 14 | 67.3 |
| M39 | 40 | 41 | 10 | 10.3 | 9.75 | 6 | 6.2 | 5.8 | 12 | 14 | 71.7 |
| M42 | 43 | 44 | 12 | 12.3 | 11.8 | 7 | 7.25 | 6.75 | 14 | 17 | 111 |
| M45 | 46 | 47 | 12 | 12.3 | 11.8 | 7 | 7.25 | 6.75 | 14 | 17 | 117 |
| M48 | 49 | 51 | 12 | 12.3 | 11.8 | 7 | 7.25 | 6.75 | 14 | 17 | 123 |
| M52 | 53 | 555 | 14 | 14.3 | 13.8 | 8 | 8.25 | 7.75 | 16 | 19 | 182 |
| M56 | 57 | 59 | 14 | 14.3 | 13.8 | 8 | 8.25 | 7.75 | 16 | 19 | 193 |
| M60 | 61 | 63 | 14 | 14.3 | 13.8 | 8 | 8.25 | 7.75 | 16 | 19 | 203 |
| M64 | 65 | 67 | 14 | 14.3 | 13.8 | 8 | 8.25 | 7.75 | 16 | 19 | 218 |
| M68 | 69 | 71 | 14 | 14.3 | 13.8 | 8 | 8.25 | 7.75 | 16 | 19 | 228 |
| M72 | 73 | 75 | 14 | 14.3 | 13.8 | 8 | 8.25 | 7.75 | 16 | 19 | 240 |
| M80 | 81 | 83 | 14 | 14.3 | 13.8 | 8 | 8.25 | 7.75 | 16 | 19 | 262 |
| M90 | 91 | 93 | 14 | 14.3 | 13.8 | 8 | 8.25 | 7.75 | 16 | 19 | 290 |
| M100 | 101 | 103 | 14 | 14.3 | 13.8 | 8 | 8.25 | 7.75 | 16 | 19 | 318 |
