Fastener Torque Chart
Reference chart for common SAE and metric fastener torque values with condition adjustments.
Fastener Torque Filters
Visible Results: 10
| Size | Thread | Grade/Class | Condition | lb-ft | Nm | Action |
|---|---|---|---|---|---|---|
| 1/4 | 1/4-20 | Grade 8 | Dry | 12 | 16.3 | |
| 5/16 | 5/16-18 | Grade 8 | Dry | 25 | 33.9 | |
| 3/8 | 3/8-16 | Grade 8 | Dry | 45 | 61 | |
| 7/16 | 7/16-14 | Grade 8 | Dry | 70 | 94.9 | |
| 1/2 | 1/2-13 | Grade 8 | Dry | 110 | 149.1 | |
| 9/16 | 9/16-12 | Grade 8 | Dry | 155 | 210.2 | |
| 5/8 | 5/8-11 | Grade 8 | Dry | 220 | 298.3 | |
| 3/4 | 3/4-10 | Grade 8 | Dry | 380 | 515.2 | |
| 7/8 | 7/8-9 | Grade 8 | Dry | 600 | 813.5 | |
| 1 | 1-8 | Grade 8 | Dry | 900 | 1,220.2 |
1/4-20
SAE Coarse | Grade 8 | Dry
12 lb-ft / 16.3 Nm
5/16-18
SAE Coarse | Grade 8 | Dry
25 lb-ft / 33.9 Nm
3/8-16
SAE Coarse | Grade 8 | Dry
45 lb-ft / 61 Nm
7/16-14
SAE Coarse | Grade 8 | Dry
70 lb-ft / 94.9 Nm
1/2-13
SAE Coarse | Grade 8 | Dry
110 lb-ft / 149.1 Nm
9/16-12
SAE Coarse | Grade 8 | Dry
155 lb-ft / 210.2 Nm
5/8-11
SAE Coarse | Grade 8 | Dry
220 lb-ft / 298.3 Nm
3/4-10
SAE Coarse | Grade 8 | Dry
380 lb-ft / 515.2 Nm
7/8-9
SAE Coarse | Grade 8 | Dry
600 lb-ft / 813.5 Nm
1-8
SAE Coarse | Grade 8 | Dry
900 lb-ft / 1,220.2 Nm
General fastener torque reference only.
Values vary by material, coating, lubricant, anti-seize, joint condition, and manufacturer procedure.
Always use OEM or service-manual specifications when available.
Do not use this chart for torque-to-yield fasteners, rod bolts, main bolts, head bolts, injector hold-downs, or critical procedures unless manufacturer documentation explicitly allows it.
Condition adjustment rule used for MVP: Lubricated = 15% lower than dry, Anti-seize = 25% lower than dry (estimated only).
Example Values
- SAE Grade 8 1/2-13 dry: 110 lb-ft
- Metric Class 10.9 M12 x 1.75 dry: 86 lb-ft
Formula and Notes
Dry chart values with estimated reduction factors for lubricated and anti-seize conditions
General fastener torque reference only. Always use OEM or service-manual specs. Do not use for torque-to-yield or critical fasteners unless manufacturer documentation allows it.
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