HLT77 at a glance
Where to buy
Specification
| Item | Value |
|---|---|
| Type | Hi-Lok collar, shear |
| Material | Aluminum alloy |
| Strength | Shear application |
| Status | Check the current issue before design use. |
Dimensions by size
| Dimension, in | 8-32UNJC | 10-32UNJF | 1/4-28UNJF |
|---|---|---|---|
| Pin nominal diameter | 5/32 | 3/16 | 1/4 |
| A — Collar diameter (max / min) | .292 – .288 | .307 – .303 | .412 – .408 |
| B — Bore diameter (max / min) | .179 – .175 | .205 – .201 | .265 – .261 |
| L — Length | .447 – .427 | .457 – .437 | .550 – .530 |
| Thread | 8-32UNJC | 10-32UNJF | 1/4-28UNJF |
| Collar UTS, lb min | 1,400 | 1,600 | 3,000 |
| Torque-off, in-lb | 15-25 | 25-35 | 60-80 |
Dimensions as tabulated in the catalogue, by dash number (pin nominal diameter). Max – min where a tolerance is shown.
Part numbers
Every collar dash number listed, by pin diameter.
Part number
What each code means
| Part | Meaning |
|---|---|
| Format | HLT77-<dash> |
| Example | HLT77-5 — 5/32 nominal pin diameter |
Notes from the standard
- Thread classes are as printed (no class suffix) in the catalogue.
- Max – min values shown as max – min. Approved data governs.
- Pins this collar is listed for in the catalogue: HL325, HL328.
Where to buy
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Sources
- HLT77 — Hi-Lok Collar, Shear, Aluminum Alloy — 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.