PRODUCTS CENTER
Papua New Guinea High Strength Grade 4.8 8.8 10.9 12.9 Steel Galvanized White Blue Zinc Plated DIN3570 U Bolts
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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Product Description
Product Photos and Information
| Name | U bolts | Materials | Carbon Steel/Stainless Steel |
| Standards | DIN ISO UNC BSW JIS etc. | Strength level | 4.8 8.8 10.9 12.9 A2-70 A4-70 A4-80 |
| Size | M3-M50 | Surface finish | ZP\HDG\BLACK\Dacromet etc. |
| Length | 15-500 | Samples | Available |
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Product Standards

U-bolts - bow clamps for pipes of nominal diameter 20 to 500 DIN 3570
| Nominal diameter | 30 | 38 | 46 | 52 | 64 | 82 | 94 | 120 | 148 | ||||
| d | |||||||||||||
| d 1 | 25~26.9 | 30~33.7 | 38~42.4 | 44.5~48.3 | 57~60.3 | 76.1 | 88.9 | 108~114.3 | 133~139.7 | ||||
| d 1 | Applicable pipe size | Metric | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | ||
| d 1 | Imperial | 3/4" | 1" | 1 1/4" | 1 1/2" | 2" | 2 1/2" | 3" | 4" | - | |||
| b ① | 40 | 40 | 50 | 50 | 50 | 50 | 50 | 60 | 60 | ||||
| ds | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 16 | 16 | ||||
| d 3 | M10 | M10 | M10 | M10 | M12 | M12 | M12 | M16 | M16 | ||||
| L ① | 70 | 76 | 86 | 92 | 109 | 125 | 138 | - | - | ||||
| L 1 | 28 | 31 | 37 | 40 | 49 | 57 | 66 | 171 | 191 | ||||
| n | 40 | 48 | 56 | 62 | 76 | 94 | 106 | 136 | 164 | ||||
| 100 pieces weight (steel)≈kg | Type A | 9.4 | 10.5 | 12 | 12.9 | 22.2 | 25.9 | 28.8 | 64 | 72.7 | |||
| Type B | 6.8 | 7.7 | 9 | 9.7 | 16.8 | 19.8 | 22.4 | - | - | ||||
| Nominal diameter | 176 | 202 | 228 | 282 | 332 | 378 | 428 | 530 | ||||
| d | ||||||||||||
| d 1 | 159~168.3 | (191)~193.7 | 216~219.1 | 267~273 | 318~323.9 | 355.6~368 | 406.4~419 | 508~521 | ||||
| d 1 | Applicable pipe size | Metric | 150 | -175 | 200 | 250 | 300 | 350 | 400 | 500 | ||
| d 1 | Imperial | - | - | - | - | - | - | - | - | |||
| b ① | 60 | 60 | 70 | 70 | 70 | 70 | 70 | 70 | ||||
| ds | 16 | 16 | 20 | 20 | 20 | twenty four | twenty four | twenty four | ||||
| d 3 | M16 | M16 | M20 | M20 | M20 | M24 | M24 | M24 | ||||
| L ① | - | - | - | - | - | - | - | - | ||||
| L 1 | 217 | 249 | 283 | 334 | 385 | 435 | 487 | 589 | ||||
| n | 192 | 218 | 248 | 302 | 352 | 402 | 452 | 554 | ||||
| 100 pieces weight (steel)≈kg | Type A | 83.4 | 95.8 | 169.8 | 202.8 | 235 | 382 | 429 | 522 | |||
| Type B | - | - | - | - | - | - | - | - | ||||

