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DIN931 A4-70 Stainless Steel 316 Hex Bolts Hex Cap Screws Partially Thread
Product Description:
More corrosion resistant than 18-8 stainless steel screws, these 316 stainless screws have excellent resistance to chemicals and salt water.
They may be mildly magnetic. Length is measured from under the head.
Stainless steel 316 can be used in the same applications.
Mechanical properties:
| Steel Grade | A4 |
| Property Class | 70 |
| Tensile Strength | 700Mpa min. |
| Stress at 0.2% permanent strain | 450Mpa min. |
| Elongation after fracture | 0.4d |
Product Specifications:
| Hex bolt & Hex Cap Screws partially threaded | ||||||||||||||
| DIN931-1987 | ||||||||||||||
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| d(mm) | P(mm) | b(mm) | ds(mm) | k(mm) | S(mm) | |||||||||
| L≤125 | 125＜L≤200 | L＞200 | min | Max | A | B | min | Max | ||||||
| A | B | min | max | min | max | A | B | |||||||
| M1.6 | 0.35 | 9 | / | / | 1.46 | / | 1.6 | 0.98 | 1.22 | / | / | 3.02 | / | 3.2 |
| M2 | 0.4 | 10 | / | / | 1.86 | / | 2 | 1.28 | 1.52 | / | / | 3.82 | / | 4 |
| M2.5 | 0.45 | 11 | / | / | 2.36 | / | 2.5 | 1.58 | 1.82 | / | / | 4.82 | / | 5 |
| M3 | 0.5 | 12 | / | / | 2.86 | / | 3 | 1.88 | 2.12 | / | / | 5.32 | / | 5.5 |
| M3.5 | 0.6 | 13 | / | / | 3.32 | / | 3.5 | 2.28 | 2.52 | / | / | 5.82 | / | 6 |
| M4 | 0.7 | 14 | / | / | 3.82 | / | 4 | 2.68 | 2.92 | / | / | 6.78 | / | 7 |
| M5 | 0.8 | 16 | 22 | / | 4.82 | / | 5 | 3.35 | 3.65 | / | / | 7.78 | / | 8 |
| M6 | 1 | 18 | 24 | / | 5.82 | / | 6 | 3.85 | 4.15 | / | / | 9.78 | / | 10 |
| M7 | 1 | 20 | 26 | / | 6.78 | / | 7 | 4.65 | 4.95 | / | / | 10.73 | / | 11 |
| M8 | 1.25 | 22 | 28 | / | 7.78 | / | 8 | 5.15 | 5.45 | / | / | 12.73 | / | 13 |
| M10 | 1.5 | 26 | 32 | 45 | 9.78 | / | 10 | 6.22 | 6.56 | / | / | 16.73 | / | 17 |
| M12 | 1.75 | 30 | 36 | 49 | 11.7 | / | 12 | 7.32 | 7.68 | / | / | 18.67 | / | 19 |
| M14 | 2 | 34 | 40 | 53 | 13.7 | / | 14 | 8.62 | 8.98 | / | / | 21.67 | / | 22 |
| M16 | 2 | 38 | 44 | 57 | 15.7 | 15.6 | 16 | 9.82 | 10.18 | 9.71 | 10.29 | 23.67 | 23.16 | 24 |
| M18 | 2.5 | 42 | 48 | 61 | 17.7 | 17.6 | 18 | 11.28 | 11.72 | 11.15 | 11.85 | 26.67 | 26.15 | 27 |
| M20 | 2.5 | 46 | 52 | 65 | 19.7 | 19.5 | 20 | 12.28 | 12.72 | 12.15 | 12.85 | 29.67 | 29.16 | 30 |
| M22 | 2.5 | 50 | 56 | 69 | 21.7 | 21.5 | 22 | 13.78 | 14.22 | 13.65 | 14.35 | 31.61 | 31 | 32 |
| M24 | 3 | 54 | 60 | 73 | 23.7 | 23.5 | 24 | 14.78 | 15.22 | 14.65 | 15.35 | 35.38 | 35 | 36 |
| M27 | 3 | 60 | 66 | 79 | / | 26.5 | 27 | / | / | 16.65 | 17.35 | / | 40 | 41 |
| M30 | 3.5 | 66 | 72 | 85 | / | 29.5 | 30 | / | / | 18.28 | 19.12 | / | 45 | 46 |
| M33 | 3.5 | 72 | 78 | 91 | / | 32.4 | 33 | / | / | 20.58 | 21.42 | / | 49 | 50 |
| M36 | 4 | 78 | 84 | 97 | / | 35.4 | 36 | / | / | 22.08 | 22.92 | / | 53.8 | 55 |
| M39 | 4 | 84 | 90 | 103 | / | 38.4 | 39 | / | / | 24.58 | 25.42 | / | 58.8 | 60 |
| M42 | 4.5 | 90 | 96 | 109 | / | 41.61 | 42 | / | / | 25.58 | 26.42 | / | 63.1 | 65 |
| M45 | 4.5 | 96 | 102 | 115 | / | 44.38 | 45 | / | / | 27.58 | 28.42 | / | 68.1 | 70 |
| M48 | 5 | 102 | 108 | 121 | / | 47.38 | 48 | / | / | 29.58 | 30.42 | / | 73.1 | 75 |
| M52 | 5 | / | 116 | 129 | / | 51.26 | 52 | / | / | 32.5 | 33.5 | / | 78.1 | 80 |
| M56 | 5.5 | / | 124 | 137 | / | 55.26 | 56 | / | / | 34.5 | 35.5 | / | 82.5 | 85 |
| M60 | 5.5 | / | 132 | 145 | / | 59.26 | 60 | / | / | 37.5 | 38.5 | / | 87.8 | 90 |
| M64 | 6 | / | 140 | 153 | / | 63.26 | 64 | / | / | 39.5 | 40.5 | / | 92.8 | 95 |
| M68 | 6 | / | 148 | 161 | / | 67.26 | 68 | / | / | 42.5 | 43.5 | / | 97.8 | 100 |
| M72 | 6 | / | 156 | 169 | / | 71.26 | 72 | / | / | 44.5 | 45.5 | / | 102.8 | 105 |
| M76 | 6 | / | 164 | 177 | / | 75.26 | 76 | / | / | 47.5 | 48.5 | / | 107.8 | 110 |
| M80 | 6 | / | 172 | 185 | / | 79.26 | 80 | / | / | 49.5 | 50.5 | / | 112.8 | 115 |
| M90 | 6 | / | 192 | 205 | / | 89.13 | 90 | / | / | 56.4 | 57.6 | / | 127.5 | 130 |
| M100 | 6 | / | / | 225 | / | 99.13 | 100 | / | / | 62.4 | 63.6 | / | 142.5 | 145 |
| M110 | 6 | / | / | 245 | / | 109.1 | 110 | / | / | 68.4 | 69.6 | / | 152.5 | 155 |
| M125 | 6 | / | / | 275 | / | 124 | 125 | / | / | 78.4 | 79.6 | / | 177.5 | 180 |
| M140 | 6 | / | / | 305 | / | 139 | 140 | / | / | 87.3 | 88.7 | / | 195.4 | 200 |
| M160 | 6 | / | / | 345 | / | 159 | 160 | / | / | 99.3 | 100.7 | / | 225.4 | 230 |
Finish:
Unless otherwise specified, fasteners in accordance with this part of ISO 3506 shall be supplied clean and bright. For maximum corrosion resistance, passivation is recommended. When passivation is required, it shall
be performed in accordance with ISO 16048. Fasteners that are passivated may additionally be marked with the symbol “P” after the symbols for steel grade and property class.