Double Lock Washer
Standard: DIN 25201
Commodity: Double Lock Washer
Also Named: Double Fold Self-locking Washer
Material: Steel
Diameter: 3, 3.5, 3.5 Large②, 4, 4Large②, 5, 5 Large②, 6, 6Large②, 1/4①, 1/4 Large①②, 8, 8Large②, 3/8①, 3/8 Large①②, 10, 10 Large②, 11, 12, 12 Large②, 1/2 ①, 1/2Large ①②, 14, 14 Large②, 16, 16 Large②, 18, 18 Large②, 3/4 ①, 3/4 Large①②, 20, 20 Large②, 22, 22 Large②, 24, 24 Large②, 1①, 1 Large①②, 27, 27 Large②, 30, 30 Large②, 33, 33 Large②, 36, 36 Large②, 39, 42, 45, 48, 52, 56, 60, 64, 68, 72, 76, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130
Finish: Plain, Black, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated
MOQ: 1000kgs
Lead Time: 30 to 60 days
Product Introduction
AYA Fasteners (Hebei) Co., Ltd. is one of the most experienced manufacturers and suppliers of double lock washer in China. Please feel free to buy high quality double lock washer made in China here from our factory. For price consultation, contact us.
As a global supplier of customized fastening solutions, AYA's senvice process is also as close to customers as AYA's products. From describing needs to follow-up services, AYA will promptly and spare no effort to help customers solve any fastening problems that arise, to eliminate the concern of customers.
Product Description
Product Name | Double Lock Washer |
Also Named | Double fold self-locking washer |
Material | Steel |
Standard | DIN 25201 |
Diameter | 3, 3.5, 3.5 Large②, 4, 4Large②, 5, 5 Large②, 6, 6Large②, 1/4①, 1/4 Large①②, 8, 8Large②, 3/8①, 3/8 Large①②, 10, 10 Large②, 11, 12, 12 Large②, 1/2 ①, 1/2Large ①②, 14, 14 Large②, 16, 16 Large②, 18, 18 Large②, 3/4 ①, 3/4 Large①②, 20, 20 Large②, 22, 22 Large②, 24, 24 Large②, 1①, 1 Large①②, 27, 27 Large②, 30, 30 Large②, 33, 33 Large②, 36, 36 Large②, 39, 42, 45, 48, 52, 56, 60, 64, 68, 72, 76, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130 |
Finish | Plain, Black, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated |
| Size | 3 | 3.5 | 3.5 | 4 | 4 | 5 | 5 | 6 | 6 | ||
| Large ② | Large ② | Large ② | Large ② | ||||||||
| Bolt size | Metric | M3 | M3.5 | M3.5 | M4 | M4 | M5 | M5 | M6 | M6 | |
| Inch | #5 | #6 | #6 | #8 | #8 | #10 | #10 | - | - | ||
| d | max | 3.5 | 4 | 4 | 4.5 | 4.5 | 5.5 | 5.5 | 6.6 | 6.6 | |
| min | 3.3 | 3.8 | 3.8 | 4.3 | 4.3 | 5.3 | 5.3 | 6.4 | 6.4 | ||
| dc | Nominal Size | 7 | 7.6 | 9 | 7.6 | 9 | 9 | 10.8 | 10.8 | 13.5 | |
| max | 7.2 | 7.8 | 9.2 | 7.8 | 9.2 | 9.2 | 11 | 11 | 13.7 | ||
| min | 6.8 | 7.4 | 8.8 | 7.4 | 8.8 | 8.8 | 10.6 | 10.6 | 13.3 | ||
| h | Steel | Nominal Size | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 2.5 |
| max | 2.05 | 2.05 | 2.05 | 2.05 | 2.05 | 2.05 | 2.05 | 2.05 | 2.75 | ||
| min | 1.55 | 1.55 | 1.55 | 1.55 | 1.55 | 1.55 | 1.55 | 1.55 | 2.25 | ||
| per 1000 units≈kg ③ | Steel | ≈ | 0.3 | 0.4 | 0.6 | 0.4 | 0.6 | 0.5 | 1.1 | 0.7 | 2 |
| h | Stainless Steel | Nominal Size | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2 |
| max | 2.45 | 2.45 | 2.45 | 2.45 | 2.45 | 2.45 | 2.45 | 2.45 | 2.25 | ||
| min | 1.95 | 1.95 | 1.95 | 1.95 | 1.95 | 1.95 | 1.95 | 1.95 | 1.75 | ||
| per 1000 units≈kg ③ | Stainless Steel | ≈ | 0.4 | 0.4 | 0.7 | 0.4 | 0.7 | 0.6 | 1.1 | 0.9 | 1.6 |
| Size | 1/4 ① | 1/4 | 8 | 8 | 3/8 ① | 3/8 | 10 | 10 | 11 | ||
| Large ① ② | Large ② | Large ① ② | Large ② | ||||||||
| Bolt size | Metric | - | - | M8 | M8 | - | - | M10 | M10 | M11 | |
| Inch | 1/4" | 1/4" | 5/16" | 5/16" | 3/8" | 3/8" | - | - | 7/16" | ||
| d | max | 7.3 | 7.3 | 8.8 | 8.8 | 10.5 | 10.5 | 10.9 | 10.9 | 11.6 | |
| min | 7.1 | 7.1 | 8.6 | 8.6 | 10.1 | 10.1 | 10.5 | 10.5 | 11.2 | ||
| dc | Nominal Size | 11.5 | 13.5 | 13.5 | 16.6 | 16.6 | 21 | 16.6 | 21 | 18.5 | |
| max | 11.7 | 13.7 | 13.7 | 16.8 | 16.8 | 21.2 | 16.8 | 21.2 | 18.7 | ||
| min | 11.3 | 13.3 | 13.3 | 16.4 | 16.4 | 20.8 | 16.4 | 20.8 | 18.3 | ||
| h | Steel | Nominal Size | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| max | 2.75 | 2.75 | 2.75 | 2.75 | 2.75 | 2.75 | 2.75 | 2.75 | 2.75 | ||
| min | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 | ||
| per 1000 units≈kg ③ | Steel | ≈ | 0.8 | 1.8 | 1.5 | 2.8 | 2.3 | 4.8 | 2.2 | 4.7 | 2.9 |
| h | Stainless Steel | Nominal Size | 2.2 | 2.2 | 2 | 2 | 2 | 2 | 2 | 2 | 2.2 |
| max | 2.45 | 2.45 | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 | 2.45 | ||
| min | 1.95 | 1.95 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.75 | 1.95 | ||
| per 1000 units≈kg ③ | Stainless Steel | ≈ | 0.9 | 1.5 | 1.2 | 2.3 | 1.9 | 3.8 | 1.8 | 3.7 | 2.6 |
| Size | 12 | 12 | 1/2 ① | 1/2 | 14 | 14 | 16 | 16 | 18 | ||
| Large ② | Large ① ② | Large ② | Large ② | ||||||||
| Bolt size | Metric | M12 | M12 | - | - | M14 | M14 | M16 | M16 | M18 | |
| Inch | - | - | 1/2" | 1/2" | 9/16" | 9/16" | 5/8" | 5/8" | - | ||
| d | max | 13.2 | 13.2 | 13.7 | 13.7 | 15.4 | 15.4 | 17.2 | 17.2 | 19.7 | |
| min | 12.8 | 12.8 | 13.3 | 13.3 | 15 | 15 | 16.8 | 16.8 | 19.3 | ||
| dc | Nominal Size | 19.5 | 25.4 | 19.5 | 25.4 | 23 | 30.7 | 25.4 | 30.7 | 29 | |
| max | 19.7 | 25.6 | 19.7 | 25.6 | 23.2 | 30.9 | 25.6 | 30.9 | 29.2 | ||
| min | 19.3 | 25.2 | 19.3 | 25.2 | 22.8 | 30.5 | 25.2 | 30.5 | 28.8 | ||
| h | Steel | Nominal Size | 2.5 | 3.4 | 2.5 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 |
| max | 2.75 | 3.65 | 2.75 | 3.65 | 3.65 | 3.65 | 3.65 | 3.65 | 3.65 | ||
| min | 2.25 | 3.15 | 2.25 | 3.15 | 3.15 | 3.15 | 3.15 | 3.15 | 3.15 | ||
| per 1000 units≈kg ③ | Steel | ≈ | 2.9 | 9.3 | 2.7 | 9 | 5.6 | 14.1 | 6.7 | 12.8 | 8.9 |
| h | Stainless Steel | Nominal Size | 2 | 3 | 2 | 3.2 | 3 | 3.2 | 3 | 3.2 | 3.2 |
| max | 2.25 | 3.25 | 2.25 | 3.45 | 3.25 | 3.45 | 3.25 | 3.45 | 3.45 | ||
| min | 1.75 | 2.75 | 1.75 | 2.95 | 2.75 | 2.95 | 2.75 | 2.95 | 2.95 | ||
| per 1000 units≈kg ③ | Stainless Steel | ≈ | 2.3 | 8.2 | 2.2 | 8 | 4.9 | 13.1 | 5.9 | 11.3 | 8 |
| Size | 18 | 3/4 ① | 3/4 | 20 | 20 | 22 | 22 | 24 | 24 | ||
| Large ② | Large ① ② | Large ② | Large ② | Large ② | |||||||
| Bolt size | Metric | M18 | - | - | M20 | M20 | M22 | M22 | M24 | M24 | |
| Inch | - | 3/4" | 3/4" | - | - | 7/8" | 7/8" | - | - | ||
| d | max | 19.7 | 20.2 | 20.2 | 21.6 | 21.6 | 23.6 | 23.6 | 25.5 | 25.5 | |
| min | 19.3 | 19.8 | 19.8 | 21.2 | 21.2 | 23.2 | 23.2 | 25.1 | 25.1 | ||
| dc | Nominal Size | 34.5 | 30.7 | 39 | 30.7 | 39 | 34.5 | 42 | 39 | 48.5 | |
| max | 34.7 | 30.9 | 39.2 | 30.9 | 39.2 | 34.7 | 42.2 | 39.2 | 48.7 | ||
| min | 34.3 | 30.5 | 38.8 | 30.5 | 38.8 | 34.3 | 41.8 | 38.8 | 48.3 | ||
| h | Steel | Nominal Size | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 4.6 | 3.4 | 4.6 |
| max | 3.65 | 3.65 | 3.65 | 3.65 | 3.65 | 3.65 | 4.85 | 3.65 | 4.85 | ||
| min | 3.15 | 3.15 | 3.15 | 3.15 | 3.15 | 3.15 | 4.35 | 3.15 | 4.35 | ||
| per 1000 units≈kg ③ | Steel | ≈ | 15.8 | 10.5 | 22.1 | 9.3 | 20.9 | 12.5 | 31.9 | 17.4 | 45.1 |
| h | Stainless Steel | Nominal Size | 3.2 | 3.2 | 3.2 | 3 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 |
| max | 3.45 | 3.45 | 3.45 | 3.25 | 3.45 | 3.45 | 3.45 | 3.45 | 3.45 | ||
| min | 2.95 | 2.95 | 2.95 | 2.75 | 2.95 | 2.95 | 2.95 | 2.95 | 2.95 | ||
| per 1000 units≈kg ③ | Stainless Steel | ≈ | 15.6 | 9.6 | 21 | 8.2 | 20.6 | 12.3 | 22.2 | 15.9 | 35 |
| Size | 1 ① | 1 | 27 | 27 | 30 | 30 | 33 | 33 | 36 | ||
| Large ① ② | Large ② | Large ② | Large ② | ||||||||
| Bolt size | Metric | - | - | M27 | M27 | M30 | M30 | M33 | M33 | M36 | |
| Inch | 1" | 1" | - | - | 11/8" | 11/8" | 11/4" | 11/4" | 1 3/8" | ||
| d | max | 28.1 | 28.1 | 28.6 | 28.6 | 31.6 | 31.6 | 34.6 | 34.6 | 37.6 | |
| min | 27.7 | 27.7 | 28.2 | 28.2 | 31.2 | 31.2 | 34.2 | 34.2 | 37.2 | ||
| dc | Nominal Size | 39 | 48.5 | 42 | 48.5 | 47 | 58.5 | 48.5 | 58.5 | 55 | |
| max | 39.3 | 48.8 | 42.3 | 48.8 | 47.3 | 58.8 | 48.8 | 58.8 | 55.3 | ||
| min | 38.7 | 48.2 | 41.7 | 48.2 | 46.7 | 58.2 | 48.2 | 58.2 | 54.7 | ||
| h | Steel | Nominal Size | 3.4 | 4.6 | 5.8 | 5.8 | 5.8 | 6.6 | 5.8 | 6.6 | 5.8 |
| max | 3.65 | 4.85 | 6.05 | 6.05 | 6.05 | 6.6 | 6.05 | 6.6 | 6.05 | ||
| min | 3.15 | 4.35 | 5.55 | 5.55 | 5.55 | 6.1 | 5.55 | 6.1 | 5.55 | ||
| per 1000 units≈kg ③ | Steel | ≈ | 15.3 | 42 | 31.4 | 52.7 | 41 | 85.8 | 38.9 | 80 | 54.9 |
| h | Stainless Steel | Nominal Size | 3.2 | 3.2 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | / | 6.8 |
| max | 3.2 | 3.2 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | / | 6.8 | ||
| min | 2.7 | 2.7 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | / | 6.3 | ||
| per 1000 units≈kg ③ | Stainless Steel | ≈ | 14.2 | 27.9 | 34.5 | 53.4 | 44.9 | 91.8 | 42.8 | / | 59.6 |
| Size | 36 | 39 | 42 | 45 | 48 | 52 | 56 | 60 | 64 | ||
| Large ② | |||||||||||
| Bolt size | Metric | M36 | M39 | M42 | M45 | M48 | M52 | M56 | M60 | M64 | |
| Inch | 13/8" | 11/2" | - | 13/4" | - | 2" | 21/4" | - | 21/2" | ||
| d | max | 37.6 | 40.6 | 43.4 | 46.7 | 50.1 | 54.1 | 59.6 | 63.6 | 67.6 | |
| min | 37.2 | 40.2 | 43 | 46.2 | 49.6 | 53.6 | 59.1 | 63.1 | 67.1 | ||
| dc | Nominal Size | 63 | 58.5 | 63 | 70 | 75 | 80 | 85 | 90 | 95 | |
| max | 63.3 | 58.8 | 63.3 | 70 | 75 | 80 | 85 | 90 | 95 | ||
| min | 62.7 | 58.2 | 62.7 | 68 | 73 | 78 | 83 | 88 | 93 | ||
| h | Steel | Nominal Size | 6.6 | 5.8 | 5.8 | 7 | 7 | 7 | 7 | 7 | 7 |
| max | 6.6 | 6.05 | 6.05 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | ||
| min | 6.1 | 5.55 | 5.55 | 6.25 | 6.25 | 6.25 | 6.25 | 6.25 | 6.25 | ||
| per 1000 units≈kg ③ | Steel | ≈ | 91.5 | 58.9 | 79.7 | 102 | 120 | 130 | 135 | 152 | 167 |
| h | Stainless Steel | Nominal Size | / | 6.8 | 6.8 | 6.8 | 6.8 | 9 | 9 | 9 | 9 |
| max | / | 6.8 | 6.8 | 7.55 | 7.55 | 9.75 | 9.75 | 9.75 | 9.75 | ||
| min | / | 6.3 | 6.3 | 6.05 | 6.05 | 8.25 | 8.25 | 8.25 | 8.25 | ||
| per 1000 units≈kg ③ | Stainless Steel | ≈ | / | 67.4 | 75 | 102 | 120 | 180.4 | 213 | 235 | 258 |
| Size | 68 | 72 | 76 | 80 | 85 | 90 | 95 | 100 | 105 | ||
| Bolt size | Metric | M68 | M72 | M76 | M80 | M85 | M90 | M95 | M100 | M105 | |
| Inch | - | - | 3" | 31/8" | - | - | - | 4" | - | ||
| d | max | 71.6 | 75.6 | 79.6 | 83.6 | 88.6 | 92.9 | 97.9 | 103.9 | 108.9 | |
| min | 71.1 | 75.1 | 79.1 | 83.1 | 88.1 | 92.4 | 97.4 | 103.4 | 108.4 | ||
| dc | Nominal Size | 100 | 105 | 110 | 115 | 120 | 130 | 135 | 145 | 150 | |
| max | 100 | 105 | 110 | 115 | 120 | 130 | 135 | 145 | 150 | ||
| min | 98 | 103 | 108 | 113 | 118 | 128 | 133 | 143 | 148 | ||
| h | Steel | Nominal Size | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 |
| max | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | ||
| min | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | ||
| per 1000 units≈kg ③ | Steel | ≈ | 282 | 307 | 333 | 360 | 378 | 477 | 498 | 589 | 613 |
| h | Stainless Steel | Nominal Size | 9 | 9 | 9 | 9 | / | / | / | / | / |
| max | 9.75 | 9.75 | 9.75 | 9.75 | / | / | / | / | / | ||
| min | 8.25 | 8.25 | 8.25 | 8.25 | / | / | / | / | / | ||
| per 1000 units≈kg ③ | Stainless Steel | ≈ | 282 | 307 | 333 | 360 | / | / | / | / | / |
| Size | 110 | 115 | 120 | 125 | 130 | - | - | - | - | ||
| Bolt size | Metric | M110 | M115 | M120 | M125 | M130 | - | - | - | - | |
| Inch | - | - | - | - | 5" | - | - | - | - | ||
| d | max | 113.9 | 118.9 | 123.9 | 128.9 | 133.9 | - | - | - | - | |
| min | 113.4 | 118.4 | 123.4 | 128.4 | 133.4 | - | - | - | - | ||
| dc | Nominal Size | 155 | 165 | 170 | 173 | 178 | - | - | - | - | |
| max | 155 | 165 | 170 | 173 | 178 | - | - | - | - | ||
| min | 153 | 163 | 168 | 171 | 176 | - | - | - | - | ||
| h | Steel | Nominal Size | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | - | - | - | - |
| max | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | - | - | - | - | ||
| min | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | - | - | - | - | ||
| per 1000 units≈kg ③ | Steel | ≈ | 635 | 753 | 779 | 766 | 792 | - | - | - | - |
| h | Stainless Steel | Nominal Size | / | / | / | / | / | - | - | - | - |
| max | / | / | / | / | / | - | - | - | - | ||
| min | / | / | / | / | / | - | - | - | - | ||
| per 1000 units≈kg ③ | Stainless Steel | ≈ | / | / | / | / | / | - | - | - | - |
Product Details
Product Advantages
Advantages of Double Lock Washer
1. Wedge lock washers can handle dynamic loads that tend to vary over the life of the structure without wear.
2. Double lock washer can provide higher operational reliability and lower maintenance costs.
3. High quality to ensure optimum performance over time even in extreme environments.
4. The outer radial teeth of the shim engage their respective mating surfaces in an interlocking manner, which results in an increase in the clamping force.
5. The double fold self-locking washer are very easy to install and remove.
6. Will not loosen even with lubricant.
7. Wedge lock washers are suitable for sensitive and hardened surfaces.
Quality Inspection
Final products inspection is a key point. AYA has a complete sampling check system for this important task and each detail will be fully inspected.
Professional QC inspectors are assigned to supervise the manufacturing and inspection process to ensure the transparency and high standards of the production and the standardization and precision of the final products.
Packaging & Container Loading
AYA's design team can meet customers' unique needs for labels.
Door-to-door services don't stop at the harbour. AYA has professional logistics department and established impressive logistic system all over the world.
Usage Scenarios
Why Choose AYA?
AYA provides exclusive services to 1000+ members from all over the world every year, with a unique chain service solution system, you only need to click the mouse to get exclusive fastening solution and enjoy door-to-door services.
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