Fabricated from steel and cadmium plated per QQ-P-416A, Type II, Class 3. AN310 castle nuts are used with drilled-shank bolts, clevis bolts, eye bolts and studs. The slots in the nut accommodate a cotter pin for safety purposes.
The thinner AN320 castellated shear nut, with half the tensile rating of the AN310 nut, is used with clevis bolts and threaded taper pins which are subject to shearing stress only.
Pilot Shop Ltd is authorised by the Civil Aviation Authority of New Zealand to supply aircraft parts and aircraft fluids. Our CAA number is SUP104208NZ.
Download our CAA Part 19F Certificate.
Quick order
| Thread Size | Price | Availability | Qty | Add to cart |
|---|---|---|---|---|
| 10-32AN320-3 | $4.85 | 20 in stock | ||
| 1/4-28AN320-4 | $5.36 | 10 in stock | ||
| 5/16-24AN320-5 | $7.70 | Out of stock | ||
| 3/8-24AN320-6 | $7.70 | Out of stock | ||
| 7/16-20AN320-7 | $6.49 | 10 in stock | ||
| 1/2-20AN320-8 | $6.28 | 5 in stock | ||
| 9/16-18AN320-9 | $12.30 | Special order – 3–6 weeks | ||
| 5/8-18AN320-10 | $15.30 | Special order – 3–6 weeks | ||
| 3/4-16AN320-12 | $22.42 | Special order – 3–6 weeks |


