- FLANGES
- STAINLESSS STEEL FLANGES
- CARBON STEEL FLANGES
- PP FLANGES
- JOINT
- RUBBER EXPANSION JOINTS
- UNION JOINT
- DISMANTLING JOINT
- PIPE ANTI-CORROSION
- PETROLATUM TAPE
- PVC TAPE
- WATER PROOF TAPE
- VALVES
- IRON GATE VALVES
- BUTTERFLY VALVES
- CHECK VALVES
- STANLESS STEEL BALL VALVES
- PIPE FITTINGS
- BW CARBON STEE FITTINGS
- STAINLESS STEEL FITTINGS
- FASTENERS
- BOLTS & NUTS
- DRILL TAIL THREAD
- OTHERS
- CASTING ACCESSORY
- MACHINERY PARTS
- CASHMERE PRODUCTS
BOLTS & NUTS
HEX HEAD BOLTS DIN931
Standard: DIN931
Material grade: 4.8,6.8,8.8
Size: M6-M45
Material: Carbon steel
Rust treatment: black,galvanized
Technical Specifications:
| Grade | Thread size | Material | The tensile strength (Mpa) | Hardness (HJRC) | Elongation rate % | Cross section reduction rate ψ% |
| 4.8 | d≤M16 | 25# | 450 | 22-32 | 12 | 48 |
| 6.8 | M18≤d≤M24 | 35#、45# | 800 | 22-32 | 12 | 52 |
| 8.8 | d≥M27 | 40Cr | 830 | 24-34 | 12 | 52 |
| 10.9 | All dimensions | 40Cr、35CrMoA | 1040 | 32-29 | 9 | 48 |
| 12.9 | All dimensions | 35CrMoA 42CrMoA | 1040 | 39-44 | 8 | 44 |
Dimensions:
| Nominal diameter d | Thread distance | b | ds | k | s | |||||||
| Ls≤125 | 125<L≤200 | L>200 | min A | min B | nominal | min A | min B | nominal | min A | min B | ||
| M4 | 0.7 | 14 | - | 3.82 | 2.8 | 2.68 | 7 | 6.78 | ||||
| M5 | 0.8 | 16.0 | 22 | - | 4.82 | 3.5 | 3.35 | 8 | 7.78 | |||
| M6 | 1 | 18 | 24 | - | 5.82 | 4 | 3.85 | 10 | 9.78 | |||
| M8 | 1.25 | 22 | 28 | - | 7.78 | 5.3 | 5.15 | 13 | 12.73 | |||
| M10 | 1.25 | 26 | 32 | 45 | 9.78 | 6.4 | 6.22 | 6.11 | 17 | 16.73 | ||
| M12 | 1.75 | 30 | 36 | 49 | 11.73 | 7.5 | 7.32 | 7.21 | 19 | 18.67 | ||
| M14 | 2 | 34 | 40 | 53 | 13.73 | 8.8 | 8.62 | 8.51 | 22 | 21.67 | ||
| M16 | 2 | 38 | 44 | 57 | 15.73 | 15.57 | 10 | 9.82 | 9.71 | 24 | 23.67 | 23.16 |
| M18 | 2.5 | 42 | 48 | 61 | 17.73 | 17.57 | 11.5 | 11.28 | 11.15 | 27 | 26.67 | 26.16 |
| M20 | 2.5 | 46 | 52 | 65 | 19.67 | 19.48 | 12.5 | 12.28 | 12.15 | 30 | 29.67 | 29.16 |
| M22 | 2.2 | 50 | 56 | 69 | 21.67 | 21.48 | 14 | 13.78 | 13.65 | 32 | 31.61 | 31.00 |
| M24 | 3 | 54 | 60 | 73 | 23.67 | 23.48 | 15 | 14.78 | 14.65 | 36 | 35.38 | 35.00 |
| M27 | 3 | 60 | 66 | 79 | 26.48 | 17 | 16.65 | 41 | 40.00 | |||
| M30 | 3.5 | 66 | 72 | 85 | 29.48 | 18.7 | 18.28 | 46 | 45.00 | |||
| M33 | 3.5 | 72 | 78 | 91 | 32.38 | 21 | 20.58 | 50 | 49.00 | |||
| M36 | 4 | 78 | 84 | 97 | 35.38 | 22.5 | 22.08 | 55 | 53.80 | |||
| M39 | 4 | 84 | 90 | 103 | 38.38 | 25 | 24.58 | 60 | 58.80 | |||
| M42 | 5 | 90 | 96 | 109 | 41.61 | 26.00 | 25.58 | 65 | 63.10 | |||
| M45 | 5 | 96 | 102 | 115 | 44.38 | 28.00 | 27.58 | 70 | 68.10 | |||
| M48 | 5 | 102 | 108 | 121 | 47.38 | 30.0 | 29.8 | 75 | 73.10 | |||
| M52 | 5 | / | 116 | 129 | 51.26 | 33.0 | 32.5 | 80 | 78.10 | |||
| M58 | 6 | / | 124 | 137 | 55.26 | 34.5 | 85 | 82.80 | ||||
| M60 | 6 | / | 112 | 145 | 59.26 | 37.5 | 90 | 87.80 | ||||
Copyright © 2015 INNER MONGOLIA OVERSEAS TRADE CO.,LTD. All Rights Reserved. 蒙ICP备14003383号-1
INNER MONGOLIA OVERSEAS TRADE CO.,LTD. Add: NO.126, ZHONGSHAN WEST ROAD, HOHHOT, INNER MONGOLIA,CHINA
KEYWORDS, FLANGE, PIPE FITTINGS, BALL VALVES, FASTENERS
INNER MONGOLIA OVERSEAS TRADE CO.,LTD. Add: NO.126, ZHONGSHAN WEST ROAD, HOHHOT, INNER MONGOLIA,CHINA
KEYWORDS, FLANGE, PIPE FITTINGS, BALL VALVES, FASTENERS