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The oxide black 12.9 class cylindrical head hex socket screw set is a high-quality and durable option for machine parts. With its cylindrical head and hex socket design, it provides a secure and reliable fastening solution for a variety of applications. Whether you're working on industrial machinery or precision equipment, these screws are designed to withstand the demands of heavy-duty usage. The oxide black finish not only provides a sleek and professional look, but also helps to protect the screws from corrosion and wear. With this set, you can be confident that your machine parts will be securely fastened and able to perform at their best.
Material | Carbon steel | ||
Place of Origin | China | Size | M5-M64 |
Brand Name | OEM | Packaging Details | Product bulk in plastic, bagCarton box,Wood pallet |
Standard | DIN |
Dia d | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | ||
P | thread | 0.35 | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 | 1.25 | |
b | reference | 15 | 16 | 17 | 18 | 20 | 22 | 24 | 28 | |
d₄ | MAX | Smooth | 3 | 3.8 | 4.5 | 5.5 | 7 | 8.5 | 10 | 13 |
thooth | 3.14 | 3.98 | 4.68 | 5.68 | 7.22 | 8.72 | 10.22 | 13.27 | ||
MIN | 2.86 | 3.62 | 4.32 | 5.32 | 6.78 | 8.28 | 9.78 | 12.73 | ||
d, | MAX | 1.6 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | |
MIN | 1.46 | 1.86 | 2.36 | 2.86 | 3.82 | 4.82 | 5.82 | 7.78 | ||
k | MAX | 1.6 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | |
MIN | 1.46 | 1.86 | 2.36 | 2.86 | 3.82 | 4.82 | 5.7 | 7.64 | ||
S | P | 1.5 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | |
MAX | Class 12.9 | 1.545 | 1.545 | 2.045 | 2.56 | 3.071 | 4.084 | 5.084 | 6.095 | |
Other | 1.56 | 1.56 | 2.06 | 2.58 | 3.08 | 4.095 | 5.14 | 6.14 | ||
MIN | 1.52 | 1.52 | 2.02 | 2.52 | 3.02 | 4.02 | 5.02 | 6.02 | ||
t | MIN | 0.7 | 1 | 1.1 | 1.3 | 2 | 2.5 | 3 | 4 |