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| Customization: | Available |
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| Material: | Stainless Steel |
| Type: | Hexagon Head |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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| Stainless Steel Hex Head Bolt | |
| Material: | Carbon Steel, Stainless Steel, Brass etc. |
| Standards: | GB, DIN, ISO, ANSI/ASTM, BS, BSW, JIS, ETC |
| Size: | M4-M100 or non-standard asa request & design |
| Finish: | Plain, Black, Zinc, Yellow Zinc, HDG, Dacromet, etc. |
| Screw Thread d |
M42 | (M45) | M48 | (M52) | M56 | (M60) | M64 | (M68) | M72 | |
| P | Pitch | 4.5 | 4.5 | 5 | 5 | 5.5 | 5.5 | 6 | 6 | 6 |
| b | L≤125 | 90 | 96 | 102 | - | - | - | - | - | - |
| 125 | 96 | 102 | 108 | 116 | 124 | 132 | 140 | 148 | 156 | |
| L>200 | 109 | 115 | 121 | 129 | 137 | 145 | 153 | 161 | 169 | |
| c | min | 0.3 | 0.3 | 0.3 | 0.3 | - | - | - | - | - |
| max | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| da | max | 45.6 | 48.6 | 52.6 | 56.6 | 63 | 67 | 71 | 75 | 79 |
| ds | max=nominal size | 42 | 45 | 48 | 52 | 56 | 60 | 64 | 68 | 72 |
| min | 41.61 | 44.38 | 47.38 | 51.26 | 55.26 | 59.26 | 63.26 | 67.26 | 71.26 | |
| dw | min | 60.6 | 64.7 | 69.4 | 74.2 | 78.7 | 83.4 | 88.2 | 92.9 | 97.7 |
| e | min | 71.3 | 76.95 | 82.6 | 88.25 | 93.56 | 99.21 | 104.86 | 110.51 | 116.16 |
| k | Nominal Size | 26 | 28 | 30 | 33 | 35 | 38 | 40 | 43 | 45 |
| max | 26.42 | 28.42 | 30.42 | 33.5 | 35.5 | 38.5 | 40.5 | 43.5 | 45.5 | |
| min | 25.58 | 27.58 | 29.58 | 32.5 | 34.5 | 37.5 | 39.5 | 42.5 | 44.5 | |
| k1 | min | 17.9 | 19.3 | 20.9 | 22.8 | 24.2 | 26.2 | 27.6 | 29.8 | 31.2 |
| r | min | 1.2 | 1.2 | 1.6 | 1.6 | 2 | 2 | 2 | 2 | 2 |
| s | max=nominal size | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 |
| min | 63.1 | 68.1 | 73.1 | 78.1 | 82.8 | 87.8 | 92.8 | 97.8 | 102.8 | |
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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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