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M14 hex flange bolt size
21 mm wrench
wrench size for M14 flange bolt
M14 flange bolt — Heavy machinery, structural.
Full specification
| System | Metric coarse |
| Nominal diameter | 14 mm |
| Thread pitch | 2.0 mm |
| Wrench size | 21 mm |
| Tap drill | 12 mm |
| Clearance hole | 15.5 mm |
| Common grade / class | 8.8 |
| Typical torque | 130 Nm (95.9 ft·lb) |
About M14 flange bolts
Heavy machinery, structural.
Hex flange bolts have an integrated washer face under the head, which distributes load over a wider area. This eliminates the need for a separate washer and provides better resistance to vibration loosening.
Commonly used in automotive applications, sheet metal work, and machinery where vibration resistance is important.
Frequently asked questions
- What size wrench fits M14 flange bolt?
- M14 flange bolt uses a 21 mm wrench.
- What is the torque for M14 flange bolt?
- Typical torque for M14 flange bolt in 8.8 is about 130 Nm (95.9 ft·lb).
- What are flange bolts used for?
- M14 flange bolts are used in heavy machinery, structural.