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| Customization: | Available |
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| Material: | Stainless Steel |
| Type: | Round Head |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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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: | M30-M530 or non-standard asa request & design |
| Finish: | Plain, Black, Zinc, Yellow Zinc, HDG, Dacromet, etc. |
| Nominal Diameter d |
30 | 38 | 46 | 52 | 64 | 82 | 94 | 120 | 148 | |||
| d1 | 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 | |||
| d1 | tube size | Metric | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | |
| d1 | Inch | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 4 | / | ||
| ds | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 16 | 16 | |||
| d3 | M10 | M10 | M10 | M10 | M12 | M12 | M12 | M16 | M16 | |||
| L1 | 28 | 31 | 37 | 40 | 49 | 57 | 66 | / | / | |||
| n | 40 | 48 | 56 | 62 | 76 | 94 | 106 | 136 | 164 | |||
| per 100 units ≈ 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 | / | / | |||
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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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