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AN25-21
Aeronautical Standard Clevis Bolt
Description
Clevis bolts have a slotted brazier type head. They are special-purpose bolts for use where a large shearing stress occurs (never in tension). Manufactured and cadmium plated in same manner as AN3 - AN8 aircraft bolts. Minimum tensile strength 125,000 PSI. Available with drilled or undrilled shank. Add letter "A" after dash number for undrilled shank. Prices fluctuate on clevis bolts. Note: AN25-25 has a 4 week lead time
Specifications
| Distance From Head Largest Bearing Surface To Shank Hole Center | 1.172 inches minimum first hole and 1.203 inches maximum first hole |
|---|---|
| Fastener Length | 1.359 |
| Grip | 1/2 |
| Groove Diameter | 0.245 inches minimum and 0.255 inches maximum |
| Hardness Rating | 26.0 rockwell c minimum and 32.0 rockwell c maximum |
| Head Diameter | 0.625 |
| Head Height | 0.156 |
| Head Style | Button |
| Internal Drive Style | Slot |
| Length | 1 11/32, 1 23/64 |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Shank Unthreaded Hole Diameter | 0.076 inches minimum first hole and 0.086 inches maximum first hole |
| Single Shear Strength | 5750 pounds per square inch |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 ty 2 cl 3 fed spec all treatment responses |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.277 inches minimum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
Cross-reference
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Catalog data updated 2026-07-05. Report a data error