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Stainless Steel A2-70 A4-80 SS201 SS304 SS316 DIN25201 Double Fold Self-Lock Washers
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Stainless Steel A2-70 A4-80 SS201 SS304 SS316 DIN25201 Double Fold Self-Lock Washers
We are committed to become the world's top fastening solutions provider, let Chinese prod-uct enterworld class, let the Chengyi production become synonymous with quality. To this end we need perseverance. At the same time, we also shoulder the responsibility of the society and the expectations of theemployees. In the future, we will become a respected enterprise.
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| Name | Double Fold Lock Washers | Materials | Carbon Steel/Stainless Steel |
| Standards | DIN ISO UNC BSW JIS etc. | Strength level | 65MN 4.8 8.8 10.9 etc. |
| Size | M3-M18 | Surface finish | ZP\BLACK etc. |
| Length | 1-3.5 | Samples | Available |
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Product Standards
Double stack self-locking washers (carbon steel/stainless steel) DIN 25201
| Specification | 3 | 3.5 | 3.5 sp enlargement ② | 4 | 4 sp enlarged ② | 5 | 5 sp enlarged ② | 6 | 6 sp enlarged ② | 1/4 ① | 1/4 sp enlarged ① ② | 8 | 8 sp enlarged ② | 3/8 ① | ||||
| Bolt Specifications | Metric | M3 | M3.5 | M3.5 | M4 | M4 | M5 | M5 | M6 | M6 | - | - | M8 | M8 | - | |||
| Inches | #5 | #6 | #6 | #8 | #8 | #10 | #10 | - | - | 1/4" | 1/4" | 5/16" | 5/16" | 3/8" | ||||
| d | maximum value | 3.5 | 4 | 4 | 4.5 | 4.5 | 5.5 | 5.5 | 6.6 | 6.6 | 7.3 | 7.3 | 8.8 | 8.8 | 10.5 | |||
| minimum | 3.3 | 3.8 | 3.8 | 4.3 | 4.3 | 5.3 | 5.3 | 6.4 | 6.4 | 7.1 | 7.1 | 8.6 | 8.6 | 10.1 | ||||
| dc | Nominal | 7 | 7.6 | 9 | 7.6 | 9 | 9 | 10.8 | 10.8 | 13.5 | 11.5 | 13.5 | 13.5 | 16.6 | 16.6 | |||
| maximum value | 7.2 | 7.8 | 9.2 | 7.8 | 9.2 | 9.2 | 11 | 11 | 13.7 | 11.7 | 13.7 | 13.7 | 16.8 | 16.8 | ||||
| minimum | 6.8 | 7.4 | 8.8 | 7.4 | 8.8 | 8.8 | 10.6 | 10.6 | 13.3 | 11.3 | 13.3 | 13.3 | 16.4 | 16.4 | ||||
| h | carbon steel | Nominal | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | ||
| maximum value | 2.05 | 2.05 | 2.05 | 2.05 | 2.05 | 2.05 | 2.05 | 2.05 | 2.75 | 2.75 | 2.75 | 2.75 | 2.75 | 2.75 | ||||
| minimum | 1.55 | 1.55 | 1.55 | 1.55 | 1.55 | 1.55 | 1.55 | 1.55 | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 | ||||
| 1000 pieces weight kg ③ | carbon steel | ≈ | 0.3 | 0.4 | 0.6 | 0.4 | 0.6 | 0.5 | 1.1 | 0.7 | 2 | 0.8 | 1.8 | 1.5 | 2.8 | 2.3 | ||
| h | Stainless steel | Nominal | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2 | 2.2 | 2.2 | 2 | 2 | 2 | ||
| maximum value | 2.45 | 2.45 | 2.45 | 2.45 | 2.45 | 2.45 | 2.45 | 2.45 | 2.25 | 2.45 | 2.45 | 2.25 | 2.25 | 2.25 | ||||
| minimum | 1.95 | 1.95 | 1.95 | 1.95 | 1.95 | 1.95 | 1.95 | 1.95 | 1.75 | 1.95 | 1.95 | 1.75 | 1.75 | 1.75 | ||||
| 1000 pieces weight kg ③ | Stainless steel | ≈ | 0.4 | 0.4 | 0.7 | 0.4 | 0.7 | 0.6 | 1.1 | 0.9 | 1.6 | 0.9 | 1.5 | 1.2 | 2.3 | 1.9 | ||
| Specification | 3/8 sp enlarged ① ② | 10 | 10 sp enlarged ② | 11 | 12 | 12 sp enlarged ② | 1/2 ① | 1/2 sp oversized ① ② | 14 | 14 sp enlarged ② | 16 | 16 sp enlarged ② | 18 | 18 sp enlarged ② | ||||
| Bolt Specifications | Metric | - | M10 | M10 | M11 | M12 | M12 | - | - | M14 | M14 | M16 | M16 | M18 | M18 | |||
| Inches | 3/8" | - | - | 7/16” | - | - | 1/2" | 1/2" | 9/16” | 9/16” | 5/8" | 5/8" | - | - | ||||
| d | maximum value | 10.5 | 10.9 | 10.9 | 11.6 | 13.2 | 13.2 | 13.7 | 13.7 | 15.4 | 15.4 | 17.2 | 17.2 | 19.7 | 19.7 | |||
| minimum | 10.1 | 10.5 | 10.5 | 11.2 | 12.8 | 12.8 | 13.3 | 13.3 | 15 | 15 | 16.8 | 16.8 | 19.3 | 19.3 | ||||
| dc | Nominal | 21 | 16.6 | 21 | 18.5 | 19.5 | 25.4 | 19.5 | 25.4 | 23 | 30.7 | 25.4 | 30.7 | 29 | 34.5 | |||
| maximum value | 21.2 | 16.8 | 21.2 | 18.7 | 19.7 | 25.6 | 19.7 | 25.6 | 23.2 | 30.9 | 25.6 | 30.9 | 29.2 | 34.7 | ||||
| minimum | 20.8 | 16.4 | 20.8 | 18.3 | 19.3 | 25.2 | 19.3 | 25.2 | 22.8 | 30.5 | 25.2 | 30.5 | 28.8 | 34.3 | ||||
| h | carbon steel | Nominal | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 3.4 | 2.5 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | ||
| maximum value | 2.75 | 2.75 | 2.75 | 2.75 | 2.75 | 3.65 | 2.75 | 3.65 | 3.65 | 3.65 | 3.65 | 3.65 | 3.65 | 3.65 | ||||
| minimum | 2.25 | 2.25 | 2.25 | 2.25 | 2.25 | 3.15 | 2.25 | 3.15 | 3.15 | 3.15 | 3.15 | 3.15 | 3.15 | 3.15 | ||||
| 1000 pieces weight kg ③ | carbon steel | ≈ | 4.8 | 2.2 | 4.7 | 2.9 | 2.9 | 9.3 | 2.7 | 9 | 5.6 | 14.1 | 6.7 | 12.8 | 8.9 | 15.8 | ||
| h | Stainless steel | Nominal | 2 | 2 | 2 | 2.2 | 2 | 3 | 2 | 3.2 | 3 | 3.2 | 3 | 3.2 | 3.2 | 3.2 | ||
| maximum value | 2.25 | 2.25 | 2.25 | 2.45 | 2.25 | 3.25 | 2.25 | 3.45 | 3.25 | 3.45 | 3.25 | 3.45 | 3.45 | 3.45 | ||||
| minimum | 1.75 | 1.75 | 1.75 | 1.95 | 1.75 | 2.75 | 1.75 | 2.95 | 2.75 | 2.95 | 2.75 | 2.95 | 2.95 | 2.95 | ||||
| 1000 pieces weight kg ③ | Stainless steel | ≈ | 3.8 | 1.8 | 3.7 | 2.6 | 2.3 | 8.2 | 2.2 | 8 | 4.9 | 13.1 | 5.9 | 11.3 | 8 | 15.6 | ||
| Specification | 3/4 ① | 3/4 sp enlarged ① ② | 20 | 20 sp enlarged ② | twenty two | 22 sp enlarged ② | twenty four | 24 sp enlarged ② | 1 ① | 1 sp enlarged ① ② | 27 | 27 sp enlarged ② | 30 | 30 sp enlarged ② | ||||
| Bolt Specifications | Metric | - | - | M20 | M20 | M22 | M22 | M24 | M24 | - | - | M27 | M27 | M30 | M30 | |||
| Inches | 3/4" | 3/4" | - | - | 7/8" | 7/8" | - | - | 1" | 1" | - | - | 1 1/8" | 1 1/8" | ||||
| d | maximum value | 20.2 | 20.2 | 21.6 | 21.6 | 23.6 | 23.6 | 25.5 | 25.5 | 28.1 | 28.1 | 28.6 | 28.6 | 31.6 | 31.6 | |||
| minimum | 19.8 | 19.8 | 21.2 | 21.2 | 23.2 | 23.2 | 25.1 | 25.1 | 27.7 | 27.7 | 28.2 | 28.2 | 31.2 | 31.2 | ||||
| dc | Nominal | 30.7 | 39 | 30.7 | 39 | 34.5 | 42 | 39 | 48.5 | 39 | 48.5 | 42 | 48.5 | 47 | 58.5 | |||
| maximum value | 30.9 | 39.2 | 30.9 | 39.2 | 34.7 | 42.2 | 39.2 | 48.7 | 39.3 | 48.8 | 42.3 | 48.8 | 47.3 | 58.8 | ||||
| minimum | 30.5 | 38.8 | 30.5 | 38.8 | 34.3 | 41.8 | 38.8 | 48.3 | 38.7 | 48.2 | 41.7 | 48.2 | 46.7 | 58.2 | ||||
| h | carbon steel | Nominal | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 | 4.6 | 3.4 | 4.6 | 3.4 | 4.6 | 5.8 | 5.8 | 5.8 | 6.6 | ||
| maximum value | 3.65 | 3.65 | 3.65 | 3.65 | 3.65 | 4.85 | 3.65 | 4.85 | 3.65 | 4.85 | 6.05 | 6.05 | 6.05 | 6.6 | ||||
| minimum | 3.15 | 3.15 | 3.15 | 3.15 | 3.15 | 4.35 | 3.15 | 4.35 | 3.15 | 4.35 | 5.55 | 5.55 | 5.55 | 6.1 | ||||
| 1000 pieces weight kg ③ | carbon steel | ≈ | 10.5 | 22.1 | 9.3 | 20.9 | 12.5 | 31.9 | 17.4 | 45.1 | 15.3 | 42 | 31.4 | 52.7 | 41 | 85.8 | ||
| h | Stainless steel | Nominal | 3.2 | 3.2 | 3 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 6.8 | 6.8 | 6.8 | 6.8 | ||
| maximum value | 3.45 | 3.45 | 3.25 | 3.45 | 3.45 | 3.45 | 3.45 | 3.45 | 3.2 | 3.2 | 6.8 | 6.8 | 6.8 | 6.8 | ||||
| minimum | 2.95 | 2.95 | 2.75 | 2.95 | 2.95 | 2.95 | 2.95 | 2.95 | 2.7 | 2.7 | 6.3 | 6.3 | 6.3 | 6.3 | ||||
| 1000 pieces weight kg ③ | Stainless steel | ≈ | 9.6 | 21 | 8.2 | 20.6 | 12.3 | 22.2 | 15.9 | 35 | 14.2 | 27.9 | 34.5 | 53.4 | 44.9 | 91.8 | ||
| Specification | 33 | 33 sp enlarged ② | 36 | 36 sp enlarged ② | 39 | 42 | 45 | 48 | 52 | 56 | 60 | 64 | 68 | 72 | ||||
| Bolt Specifications | Metric | M33 | M33 | M36 | M36 | M39 | M42 | M45 | M48 | M52 | M56 | M60 | M64 | M68 | M72 | |||
| Inches | 1 1/4" | 1 1/4" | 1 3/8" | 1 3/8" | 1 1/2" | - | 1 3/4" | - | 2" | 2 1/4" | - | 2 1/2" | - | - | ||||
| d | maximum value | 34.6 | 34.6 | 37.6 | 37.6 | 40.6 | 43.4 | 46.7 | 50.1 | 54.1 | 59.6 | 63.6 | 67.6 | 71.6 | 75.6 | |||
| minimum | 34.2 | 34.2 | 37.2 | 37.2 | 40.2 | 43 | 46.2 | 49.6 | 53.6 | 59.1 | 63.1 | 67.1 | 71.1 | 75.1 | ||||
| dc | Nominal | 48.5 | 58.5 | 55 | 63 | 58.5 | 63 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | |||
| maximum value | 48.8 | 58.8 | 55.3 | 63.3 | 58.8 | 63.3 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | ||||
| minimum | 48.2 | 58.2 | 54.7 | 62.7 | 58.2 | 62.7 | 68 | 73 | 78 | 83 | 88 | 93 | 98 | 103 | ||||
| h | carbon steel | Nominal | 5.8 | 6.6 | 5.8 | 6.6 | 5.8 | 5.8 | 7 | 7 | 7 | 7 | 7 | 7 | 9.5 | 9.5 | ||
| maximum value | 6.05 | 6.6 | 6.05 | 6.6 | 6.05 | 6.05 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | 10.25 | 10.25 | ||||
| minimum | 5.55 | 6.1 | 5.55 | 6.1 | 5.55 | 5.55 | 6.25 | 6.25 | 6.25 | 6.25 | 6.25 | 6.25 | 8.75 | 8.75 | ||||
| 1000 pieces weight kg ③ | carbon steel | ≈ | 38.9 | 80 | 54.9 | 91.5 | 58.9 | 79.7 | 102 | 120 | 130 | 135 | 152 | 167 | 282 | 307 | ||
| h | Stainless steel | Nominal | 6.8 | / | 6.8 | / | 6.8 | 6.8 | 6.8 | 6.8 | 9 | 9 | 9 | 9 | 9 | 9 | ||
| maximum value | 6.8 | / | 6.8 | / | 6.8 | 6.8 | 7.55 | 7.55 | 9.75 | 9.75 | 9.75 | 9.75 | 9.75 | 9.75 | ||||
| minimum | 6.3 | / | 6.3 | / | 6.3 | 6.3 | 6.05 | 6.05 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 | ||||
| 1000 pieces weight kg ③ | Stainless steel | ≈ | 42.8 | / | 59.6 | / | 67.4 | 75 | 102 | 120 | 180.4 | 213 | 235 | 258 | 282 | 307 | ||
| Specification | 76 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | ||||||
| Bolt Specifications | Metric | M76 | M80 | M85 | M90 | M95 | M100 | M105 | M110 | M115 | M120 | M125 | M130 | |||||
| Inches | 3” | 3 1/8" | - | - | - | 4” | - | - | - | - | - | 5” | ||||||
| d | maximum value | 79.6 | 83.6 | 88.6 | 92.9 | 97.9 | 103.9 | 108.9 | 113.9 | 118.9 | 123.9 | 128.9 | 133.9 | |||||
| minimum | 79.1 | 83.1 | 88.1 | 92.4 | 97.4 | 103.4 | 108.4 | 113.4 | 118.4 | 123.4 | 128.4 | 133.4 | ||||||
| dc | Nominal | 110 | 115 | 120 | 130 | 135 | 145 | 150 | 155 | 165 | 170 | 173 | 178 | |||||
| maximum value | 110 | 115 | 120 | 130 | 135 | 145 | 150 | 155 | 165 | 170 | 173 | 178 | ||||||
| minimum | 108 | 113 | 118 | 128 | 133 | 143 | 148 | 153 | 163 | 168 | 171 | 176 | ||||||
| h | carbon steel | Nominal | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | ||||
| maximum value | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | 10.25 | ||||||
| minimum | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | 8.75 | ||||||
| 1000 pieces weight kg ③ | carbon steel | ≈ | 333 | 360 | 378 | 477 | 498 | 589 | 613 | 635 | 753 | 779 | 766 | 792 | ||||
| h | Stainless steel | Nominal | 9 | 9 | / | / | / | / | / | / | / | / | / | / | ||||
| maximum value | 9.75 | 9.75 | / | / | / | / | / | / | / | / | / | / | ||||||
| minimum | 8.25 | 8.25 | / | / | / | / | / | / | / | / | / | / | ||||||
| 1000 pieces weight kg ③ | Stainless steel | ≈ | 333 | 360 | / | / | / | / | / | / | / | / | / | / | ||||
| ①, here is inches. | ||||||||||||||||||
| ②, increase the size | ||||||||||||||||||
| ③, "thousand-piece weight" can be understood as "the weight of each thousand sets of washers" | ||||||||||||||||||
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We are committed to become the world's top fastening solutions provider, let Chinese product enterworld class, let the Chengyi production become synonymous with quality. To this end we need perseverance. At the same time, we also shoulder the responsibility of the society and the expectations of theemployees. In the future, we will become a respected enterprise.
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Hebei Dabang Import and Export Trading Co., Ltd.
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BRANCH
Hebei Dabang Import and Export Trading Co., Ltd.
CONTACT US
Add : South of Ximingyang Village, Linmingguan Town, Yongnian District, Handan City, Hebei Province,CHINA
Mail : admin@hbcy-fastener.com
Tel : +8618831062243