HL87 at a glance
Where to buy
Specification
| Item | Value |
|---|---|
| Type | Hi-Lok collar, tension |
| Material | 303 stainless steel |
| Strength | Tension application |
| Status | Check the current issue before design use. |
Dimensions by size
| Dimension, in | 10-32UNJF-3B | 1/4-28UNJF-3B | 5/16-24UNJF-3B |
|---|---|---|---|
| Pin nominal diameter | 13/64 | 17/64 | 21/64 |
| A — Collar diameter (max / min) | .307 – .303 | .412 – .408 | .518 – .512 |
| B — Bore diameter (max / min) | .212 – .208 | .272 – .268 | .336 – .330 |
| L — Length | .457 – .437 | .552 – .532 | .672 – .652 |
| Thread | 10-32UNJF-3B | 1/4-28UNJF-3B | 5/16-24UNJF-3B |
| Collar UTS, lb min | 2,750 | 5,000 | 8,300 |
| Torque-off, in-lb | 40-50 | 115-130 | 200-250 |
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 | HL87-<dash> |
| Example | HL87-6 — 13/64 nominal pin diameter |
Notes from the standard
- The -5 size is not listed: for 5/32 pins the catalogue says use HL86-5.
- Max – min values shown as max – min. Approved data governs.
- Pins this collar is listed for in the catalogue: 1/64 oversize pins.
Where to buy
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Distributors coming soon.
Sources
- HL87 — Hi-Lok Collar, Tension, 303 Stainless Steel, for 1/64 Oversize Pins — 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.