AN176 at a glance
Where to buy
Specification
| Item | Value |
|---|---|
| Type | Close tolerance bolt |
| Status | Check the current issue before design use. |
Dimensions by size
| Dimension, in | .3750-24 |
|---|---|
| Thread | .3750-24 |
Thread as stated for the standard. Head and shank dimensions are not shown here: take them from the standard.
Part numbers
Part numbers commonly stocked, with grip and length. The standard governs and may list others.
.3750-2429 part numbers
| Part no. | Grip, in | Length, in |
|---|---|---|
| AN176-10A | 7/16 | 1-5/64 |
| AN176-10 | 7/16 | 1-5/64 |
| AN176-11A | 9/16 | 1-13/64 |
| AN176-11 | 9/16 | 1-13/64 |
| AN176-12A | 11/16 | 1-21/64 |
| AN176-12 | 11/16 | 1-21/64 |
| AN176-13A | 13/16 | 1-29/64 |
| AN176-13 | 13/16 | 1-29/64 |
| AN176-14A | 15/16 | 1-37/64 |
| AN176-14 | 15/16 | 1-37/64 |
| AN176-15A | 1-1/16 | 1-45/64 |
| AN176-15 | 1-1/16 | 1-45/64 |
| AN176-16A | 1-3/16 | 1-53/64 |
| AN176-16 | 1-3/16 | 1-53/64 |
| AN176-17A | 1-5/16 | 1-61/64 |
| AN176-17 | 1-5/16 | 1-61/64 |
| AN176-20A | 1-7/16 | 2-5/64 |
| AN176-20 | 1-7/16 | 2-5/64 |
| AN176-21A | 1-9/16 | 2-13/64 |
| AN176-21 | 1-9/16 | 2-13/64 |
| AN176-22A | 1-11/16 | 2-21/64 |
| AN176-22 | 1-11/16 | 2-21/64 |
| AN176-23A | 1-13/16 | 2-29/64 |
| AN176-23 | 1-13/16 | 2-29/64 |
| AN176-26 | 2-3/16 | — |
| AN176-42 | 3-11/16 | — |
| AN176-50 | 4-7/16 | — |
| AN176-51 | 4-9/16 | — |
| AN176H7A | 3/16 | — |
Part number
What each code means
| Part | Meaning |
|---|---|
| Format | AN176-<dash> |
| A | Variant: Undrilled shank (after the dash) |
| C | Variant: Corrosion resistant steel (after the basic number) |
| H | Variant: Drilled head (after the basic number) |
| Example | AN176-10A — Close tolerance bolt, .3750-24 thread, grip 7/16, length 1-5/64, drilled shank |
Notes from the standard
- A after the dash number: undrilled shank (rows without A are drilled).
- C after the basic number: corrosion resistant steel. H after the basic number: drilled head. These variants appear in the rows with C or H in the number.
- Uncommon: may require lead time and factory minimums.
- Part number format as commonly written; check the standard for the exact format.
- Approved data governs. Use the bolt the SRM, drawing or IPC calls for.
- Length is left blank for AN176-26, AN176-42, AN176-50, AN176-51 and AN176H7A: the listed length does not agree with the grip in the pattern of the series. Confirm against the standard.
Where to buy
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Distributors coming soon.
Sources
- AN176 — Bolt, Close Tolerance, Hexagon Head — nominal sizes and part numbers.
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.