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| Customization: | Available |
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| Material: | Stainless Steel |
| Type: | Round Head |
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| Stainless Steel U Bent Bolt with Lock Nut | |
| Material: | Carbon Steel, Stainless Steel, Brass etc. |
| Standards: | GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS, ETC |
| Size: | 5/16-3/8 or non-standard asa request & design |
| Finish: | Plain, Black, Zinc, Yellow Zinc, HDG, Dacromet, etc. |
| Nominal Diameter d |
5/16 | 5/16 | 5/16 | 3/8 | 3/8 | 3/8 | 3/8 | 3/8 | 3/8 | 3/8 | 3/8 | 3/8 | 3/8 | 3/8 | 3/8 | |
| PP | 18 | 18 | 18 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | |
| L | Nominal Size | 2.688 | 4.688 | 6.688 | 2 | 2 | 2 | 4 | 4 | 4 | 6 | 6 | 6 | 8 | 8 | 8 |
| max | 2.718 | 4.718 | 6.748 | 2.03 | 2.03 | 2.03 | 4.03 | 4.03 | 4.03 | 6.06 | 6.06 | 6.06 | 8.09 | 8.09 | 8.09 | |
| min | 2.658 | 4.658 | 6.628 | 1.97 | 1.97 | 1.97 | 3.97 | 3.97 | 3.97 | 5.94 | 5.94 | 5.94 | 7.91 | 7.91 | 7.91 | |
| n | Nominal Size | 2 | 2 | 2 | 2.625 | 4.625 | 6.625 | 2.625 | 4.625 | 6.625 | 4.625 | 6.625 | 8.625 | 4.625 | 6.625 | 8.625 |
| max | 2.03 | 2.03 | 2.03 | 2.655 | 4.655 | 6.685 | 2.655 | 4.655 | 6.685 | 4.655 | 6.685 | 8.715 | 4.655 | 6.685 | 8.715 | |
| min | 1.97 | 1.97 | 1.97 | 2.595 | 4.595 | 6.565 | 2.595 | 4.595 | 6.565 | 4.595 | 6.565 | 8.535 | 4.595 | 6.565 | 8.535 | |
| b | max | 1.56 | 3.06 | 3.06 | 1.56 | 3.06 | 3.81 | 1.56 | 3.06 | 3.81 | 3.06 | 3.81 | 5.685 | 3.06 | 3.81 | 5.685 |
| min | 1.44 | 2.94 | 2.94 | 1.44 | 2.94 | 3.69 | 1.44 | 2.94 | 3.69 | 2.94 | 3.69 | 5.565 | 2.94 | 3.69 | 5.565 | |
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| Q1: What thread standards do you follow? |
| A1: Our screws comply with DIN, ISO, ANSI, and JIS standards, and can also be customized according to customer drawings. |
| Q2: What stainless steel grades do you supply for bolts? |
| A2: We supply multiple grades including A2-70, A2-80, A4-70, A4-80, 304, 316, and 410SS, suitable for different mechanical strength and corrosion-resistance requirements. |
| 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 is the difference between A2 and A4 stainless steel bolts? |
| A6: A2 (304) is ideal for standard outdoor and industrial use, while A4 (316) contains molybdenum, offering higher corrosion resistance for marine, chemical, and salt-spray environments. |
| Q7: Will stainless steel bolts rust over time? |
| A7: Under severe chemical or chloride exposure, A2 may develop slight surface corrosion. A4/316 performs better in harsh environments. We also offer passivation treatment for enhanced protection. |
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