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3/8-24 UNF UNF bolt size
9/16 wrench
wrench size for 3/8-24 UNF UNF bolt
3/8-24 UNF UNF bolt — Automotive, aerospace, precision.
Full specification
| System | Imperial UNF (fine) |
| Nominal diameter | 0.375 in (9.53 mm) |
| Thread pitch | 24 TPI |
| Wrench size | 9/16 |
| Tap drill | 21/64 (8.3 mm) |
| Clearance hole | 25/64 |
| Common grade / class | Grade 5 |
| Typical torque | 47 Nm (34.7 ft·lb) |
🔧 Torque unit converter
Pre-filled with typical torque for 3/8-24 UNF (Grade 5).
About 3/8-24 UNF UNF bolts
Automotive, aerospace, precision.
UNF (Unified National Fine) thread has more threads per inch than UNC (coarse). 3/8-24 UNF has 24 threads per inch.
Fine threads provide better vibration resistance and finer adjustment, commonly used in automotive and aerospace applications.
Frequently asked questions
- What size wrench fits 3/8-24 UNF bolt?
- 3/8-24 UNF bolt uses a 9/16 wrench.
- What is the torque for 3/8-24 UNF bolt?
- Typical torque for 3/8-24 UNF UNF bolt in Grade 5 is about 47 Nm (34.7 ft·lb).
- What is UNF thread?
- UNF (Unified National Fine) thread has more threads per inch than UNC. 3/8-24 UNF has 24 TPI.