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3/4-16 UNF UNF bolt size
1-1/8 wrench
wrench size for 3/4-16 UNF UNF bolt
3/4-16 UNF UNF bolt — Heavy automotive, aerospace, structural.
Full specification
| System | Imperial UNF (fine) |
| Nominal diameter | 0.75 in (19.05 mm) |
| Thread pitch | 16 TPI |
| Wrench size | 1-1/8 |
| Tap drill | 11/16 (17.5 mm) |
| Clearance hole | 13/16 |
| Common grade / class | Grade 5 |
| Typical torque | 350 Nm (258.1 ft·lb) |
🔧 Torque unit converter
Pre-filled with typical torque for 3/4-16 UNF (Grade 5).
About 3/4-16 UNF UNF bolts
Heavy automotive, aerospace, structural.
UNF (Unified National Fine) thread has more threads per inch than UNC (coarse). 3/4-16 UNF has 16 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 3/4-16 UNF bolt?
- 3/4-16 UNF bolt uses a 1-1/8 wrench.
- What is the torque for 3/4-16 UNF bolt?
- Typical torque for 3/4-16 UNF UNF bolt in Grade 5 is about 350 Nm (258.1 ft·lb).
- What is UNF thread?
- UNF (Unified National Fine) thread has more threads per inch than UNC. 3/4-16 UNF has 16 TPI.