Unibridge Din603 Square-Neck Carriage Bolts Carbon Steel 18-8 Stainless Steel 316-1714121267714712
product description
Unibridge Din603 Class 8.8 steel carriage bolts are suitable for fastening most machinery and equipment. All kind of surface treatment are available.
Unibridge Din603 18-8 stainless steel carriage bolts have good chemical resistance and may be mildly magnetic. They're a good choice for ACQ-treated (arsenic-free) lumber. Dimensions meet ASME B18.5 or DIN 603 specifications. Some also meet ISO 8678. DIN 603 is functionally equivalent to ISO 8678 with slight differences in head diameter, head height, and length tolerances.
Unibridge Din603 316 Stainless Steel carriage bolt is more corrosion resistant than 18-8 stainless steel bolts.
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Product parameters
| Thread Size d | M5 | M6 | M8 | M10 | M12 | M16 | M20 | |
| Thread Size d | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | |
| b | L≤125 | 16 | 18 | 22 | 26 | 30 | 38 | 46 |
| 125＜L≤200 | 22 | 24 | 28 | 32 | 36 | 44 | 52 | |
| L＞200 | / | / | 41 | 45 | 49 | 57 | 65 | |
| dk | Max | 13.55 | 16.55 | 20.65 | 24.65 | 30.65 | 38.8 | 46.8 |
| Min | 12.45 | 15.45 | 19.35 | 23.35 | 29.35 | 37.2 | 45.2 | |
| ds | Max | 5 | 6 | 8 | 10 | 12 | 16 | 20 |
| Min | 4.52 | 5.52 | 7.42 | 9.42 | 11.3 | 15.3 | 19.16 | |
| k1 | Max | 4.1 | 4.6 | 5.6 | 6.6 | 8.75 | 12.9 | 15.9 |
| Min | 2.9 | 3.4 | 4.4 | 5.4 | 7.25 | 11.1 | 14.1 | |
| k | Max | 3.3 | 3.88 | 4.88 | 5.38 | 6.95 | 8.95 | 11.05 |
| Min | 2.7 | 3.12 | 4.12 | 4.62 | 6.05 | 8.05 | 9.95 | |
| r1 | ≈ | 10.7 | 12.6 | 16 | 19.2 | 24.1 | 29.3 | 33.9 |
| r2 | Max | 0.5 | 0.5 | 0.5 | 0.5 | 1 | 1 | 1 |
| r3 | Max | 0.75 | 0.9 | 1.2 | 1.5 | 1.8 | 2.4 | 3 |
| s | Max | 5.48 | 6.48 | 8.58 | 10.58 | 12.7 | 16.7 | 20.84 |
| Min | 4.52 | 5.52 | 7.42 | 9.42 | 11.3 | 15.3 | 19.16 | |
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