HL328 at a glance
Where to buy
Specification
| Item | Value |
|---|---|
| Type | Hi-Lok pin, protruding shear head, interference fit |
| Material | Alloy steel |
| Strength | 108,000 psi shear min.; 180,000-200,000 psi tensile |
| Status | Check the current issue before design use. |
Dimensions by size
| Dimension, in | 8-32UNJC-3A Modified | 10-32-UNJF-3A Modified |
|---|---|---|
| Nominal diameter | 5/32 | 3/16 |
| A — Head diameter (max / min) | .262 – .242 | .315 – .295 |
| B — Ref. (see drawing) | .312 | .325 |
| D — Shank diameter (max / min) | .1650 – .1640 | .1895 – .1885 |
| TD — Threaded-end diameter (max / min) | .1595 – .1570 | .1840 – .1810 |
| G — G, ref. | .020 | .025 |
| H — H (max / min, see drawing) | .047 – .037 | .055 – .045 |
| Thread | 8-32UNJC-3A Modified | 10-32-UNJF-3A Modified |
| Double shear, lb min | 4,580 | 6,100 |
| Tension, lb min | 2,200 | 2,900 |
| Gl — Min. grip length (dash) | -2 | -2 |
Dimensions as tabulated in the catalogue, by first dash number (nominal diameter). Max – min where a tolerance is shown.
Part numbers
Every part number, grouped by nominal diameter; the number after the second dash is the max grip in 1/16 in.
Part number
What each code means
| Part | Meaning |
|---|---|
| Format | HL328-<dash> |
| Example | HL328-5-2 — 5/32 nominal diameter, max grip 1/8 in |
Notes from the standard
- Interference-fit application. The catalogue gives the minimum grip length as a dash number: that dash is the shortest grip tabulated for the diameter.
- The catalogue prints the first part-number header of this block as HL327-5-# and the second as HL328-6-#; the part numbers are read from the rows below it.
- Approved data governs. Use the pin the drawing, SRM or IPC calls for.
- Grip: the number after the second dash is the max grip in 1/16 in (dash -2 = 1/8 in, -3 = 3/16 in, and so on). Maximum-minimum values are shown as max – min.
- Collars listed for this pin in the catalogue quick-reference chart: HLT77.
Where to buy
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Distributors coming soon.
Sources
- HL328 — Hi-Lok Pin, Protruding Shear Head, Interference Application — 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.