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DIN 937 Castle Nut
Leader-Fastener® is a manufacturer and distributor of DIN 937 Castle Nut. We have a complete line of service from having invested in production plants, export department and to having a quality control team and center to meet your requirements. We regard quality as the life of the company. We persist in good quality as the first policy and have established a set of quality control and inspection system according to the international standard. We have carried out ISO9001 Quality Guarantee System in every course of production, transportation and selling. We do hope we could be your partner in business by topping quality, knight service and competitive price in the near future and be your friends as well.
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Product Description
Metric DIN 937 Castle Nut are hex nuts where slots are cut into one side of the nut (DIN 937 up to 12mm dia) or through the crown (>/= 12mm dia). These slots are designed to offer a locking feature where a split pin/cotter pin (DIN 94), R clip or safety wire can aligned through the slots and guided through a hole drilled in the shank of the mated bolt. They are similar to DIN 935 but are thinner making them ideal when there are space restrictions.
Product Specification of Leader-Fastener® DIN 937 Castle Nut
Material : Carbon steel, Stainless steel, Alloy Steel, Brass.
Finishment: Black, Zinc Plated, Zinc Yellow, HDG, Phosphate, DACROMET, Geomet, Magin, Ruspert, Teflon, etc.
DIN 937 - 1983 Hexagon Thin Castle Nuts (Previous Design)
|
Screw Thread D |
M6 | (M7) | M8 | M10 | M12 | (M14) | M16 | (M18) | M20 | (M22) | |
| P | Pitch (Coarse thread) | 1 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 |
| Fine thread | - | - | 1 | 1.5 | 1.5 | 1.5 | 1.5 | 2 | 2 | 2 | |
| Fine thread | - | - | - | 1.25 | 1.25 | - | - | 1.5 | 1.5 | 1.5 | |
| de | max | / | / | / | / | 17 | 19 | 22 | 25 | 28 | 30 |
| min | / | / | / | / | 16.57 | 18.48 | 21.48 | 24.3 | 27.3 | 29.3 | |
| e | min | 11.05 | 12.12 | 14.38 | 18.9 | 20.1 | 24.49 | 26.75 | 29.56 | 32.95 | 35.03 |
| k | max | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 13 | 15 |
| min | 5.7 | 6.64 | 7.64 | 8.64 | 9.64 | 10.57 | 11.57 | 12.3 | 12.3 | 14.3 | |
| n | min | 2 | 2 | 2.5 | 2.8 | 3.5 | 3.5 | 4.5 | 4.5 | 4.5 | 5.5 |
| max | 2.25 | 2.25 | 2.75 | 3.05 | 3.8 | 3.8 | 4.8 | 4.8 | 4.8 | 5.8 | |
| s | max=nominal size | 10 | 11 | 13 | 17 | 19 | 22 | 24 | 27 | 30 | 32 |
| min | 9.78 | 10.73 | 12.73 | 16.73 | 18.67 | 21.67 | 23.67 | 26.16 | 29.16 | 31 | |
| w | min | 3.2 | 3.7 | 4.2 | 4.7 | 5.7 | 6.64 | 6.64 | 7.64 | 7.64 | 8.64 |
| max | 3.5 | 4 | 4.5 | 5 | 6 | 7 | 7 | 8 | 8 | 9 | |
| per 1000 units≈kg | 2.5 | 3.4 | 5.4 | 11.3 | 14.7 | 17.9 | 22.7 | 33.2 | 41.1 | 49.8 | |
|
Screw Thread D |
M24 | (M27) | M30 | (M33) | M36 | (M39) | M42 | (M45) | M48 | (M52) | |
| P | Pitch (Coarse thread) | 3 | 3 | 3.5 | 3.5 | 4 | 4 | 4.5 | 4.5 | 5 | 5 |
| Fine thread | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | |
| Fine thread | - | - | - | - | - | - | - | - | - | - | |
| de | max | 34 | 38 | 42 | 46 | 50 | 55 | 58 | 62 | 65 | 70 |
| min | 33 | 37 | 41 | 45 | 49 | 53.8 | 56.8 | 60.8 | 63.8 | 68.8 | |
| e | min | 39.55 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | 72.02 | 76.95 | 82.6 | 88.25 |
| k | max | 15 | 17 | 18 | 20 | 20 | 22 | 23 | 25 | 25 | 27 |
| min | 14.3 | 16.3 | 17.3 | 19.16 | 19.16 | 21.16 | 22.16 | 24.16 | 24.16 | 26.16 | |
| n | min | 5.5 | 5.5 | 7 | 7 | 7 | 7 | 9 | 9 | 9 | 9 |
| max | 5.8 | 5.8 | 7.36 | 7.36 | 7.36 | 7.36 | 9.36 | 9.36 | 9.36 | 9.36 | |
| s | max=nominal size | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 80 |
| min | 35 | 40 | 45 | 49 | 53.8 | 58.8 | 63.8 | 68.1 | 73.1 | 78.1 | |
| w | min | 8.64 | 10.57 | 10.57 | 12.57 | 12.57 | 12.57 | 13.57 | 15.57 | 15.57 | 17.57 |
| max | 9 | 11 | 11 | 13 | 13 | 13 | 14 | 16 | 16 | 18 | |
| per 1000 units≈kg | 67.8 | 103 | 133 | 173 | 215 | 269 | 310 | 406 | 463 | 580 | |
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