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| Customization: | Available |
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| Type: | Flat Gasket |
| Material: | Stainless Steel |
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| Stainless Steel Square Plain Washer | |
| Material: | Carbon Steel, Stainless Steel, Brass etc. |
| Standards: | GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS, ETC |
| Size: | M10-M52 or non-standard asa request & design |
| Finish: | Plain, Black, Zinc, Yellow Zinc, HDG, Geomet, Dacromet, etc. |
| Grade: | A2-70, A4-70, A4-80, 4.8, 8.8, 10.9, 12.9 |
| For Nominal Thread Diameter | M10 | M12 | M16 | M20 | M22 | M24 | M27 | M30 | M33 | M36 | M39 | M42 | M45 | M48 | M52 | |
| d | min=nominal size | 11 | 13.5 | 17.5 | 22 | 24 | 26 | 30 | 33 | 36 | 39 | 42 | 45 | 48 | 52 | 56 |
| max | 11.43 | 13.93 | 18.2 | 22.84 | 24.84 | 26.84 | 30.84 | 34 | 37 | 40 | 43 | 46 | 49 | 53.2 | 57.2 | |
| s | max=nominal size | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 95 | 100 | 110 | 125 | 135 | 140 | 150 | 160 |
| min | 28.7 | 38.4 | 48.4 | 58.1 | 68.1 | 78.1 | 87.8 | 92.8 | 97.8 | 107.8 | 122.5 | 132.5 | 137.5 | 147.5 | 157.5 | |
| h | Nominal Size | 3 | 4 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 10 | 10 |
| max | 3.6 | 4.6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 9.2 | 9.2 | 9.2 | 9.2 | 11.2 | 11.2 | |
| min | 2.4 | 3.4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 6.8 | 6.8 | 6.8 | 6.8 | 8.8 | 8.8 | |
| per 1000 units ≈ kg | 20 | 45.7 | 88.7 | 126 | 209 | 275 | 348 | 385 | 423 | 685 | 895 | 1050 | 1120 | 1600 | 1820 | |
| Nominal Diameter d |
Φ6 | Φ8 | Φ10 | Φ12 | (Φ14) | Φ16 | (Φ18) | Φ20 | (Φ22) | Φ24 | ||
| d | min=nominal size | 6.6 | 9 | 11 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | |
| max | 7.2 | 9.6 | 11.7 | 14.7 | 16.7 | 18.7 | 20.8 | 22.8 | 24.8 | 26.8 | ||
| s | Small square washer | max=nominal size | 17 | 23 | 28 | 35 | 40 | 45 | 52 | 56 | 64 | 68 |
| min | 15.9 | 21.7 | 26.7 | 33.4 | 38.4 | 43.4 | 50.1 | 54.1 | 62.1 | 66.1 | ||
| Large square washer | max=nominal size | 20 | 26 | 32 | 40 | 44 | 52 | 55 | 62 | 68 | 72 | |
| min | 18.7 | 24.7 | 30.4 | 38.4 | 42.4 | 50.1 | 53.1 | 60.1 | 66.1 | 70.1 | ||
| h | Small square washer | Nominal Size | 1.2 | 1.6 | 1.6 | 2.3 | 3.2 | 3.2 | 4.5 | 4.5 | 4.5 | 6 |
| max | 1.4 | 1.8 | 1.8 | 2.6 | 3.6 | 3.6 | 5 | 5 | 5 | 6.7 | ||
| min | 1 | 1.4 | 1.4 | 2 | 2.8 | 2.8 | 4 | 4 | 4 | 5.3 | ||
| Large square washer | Nominal Size | 2.3 | 2.3 | 2.3 | 3.2 | 3.2 | 4.5 | 4.5 | 6 | 6 | 6 | |
| max | 2.6 | 2.6 | 2.6 | 3.6 | 3.6 | 5 | 5 | 6.7 | 6.7 | 6.7 | ||
| min | 2 | 2 | 2 | 2.8 | 2.8 | 4 | 4 | 5.3 | 5.3 | 5.3 | ||
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| Q1: What types of metal washers do you supply? |
A1: We manufacture a wide range of washers, including:
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| Q2: Do you provide hardened washers for high-strength bolts? |
A2: Yes. For applications requiring high preload or structural fastening, we offer:
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| Q3: Do you provide samples before mass production? |
| A3: Yes, we offer free or low-cost samples for quality and dimension confirmation prior to order. |
| Q4: How do you control product quality? |
| A4: Every batch is tested for torque, hardness, thread precision, and salt spray corrosion resistance, following ISO 9001 quality system standards. |
| Q5: Do you offer OEM or customized production? |
| A5: Yes. We can produce screws according to samples, technical drawings, or specific drive/head combinations, and offer custom packaging and labeling. |
| Q6: What materials are available for your washers? |
A6: We offer washers in:
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| Q7: Can you produce sealing washers for waterproof or pressure applications? |
A7: Yes. We supply:
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