Hi-Lok, LISI
HL18-8-10
Hi-Lok pin and collar (Hi-Shear): the collar wrenching device shears off at installation.
- Head Protruding shear head
- Diameter 1/4" (-8)
- Grip .563-.625"
- Material Alloy steel per AMS6415, AMS6349 o…
- Lead-time risk Low
Install tool Hex key (holds the pin) and collar driver (Howmet Hi-Lok system) · Exact nose, every brand · Variable stack? Plan grips
What the government paidlast DLA award $1.89 ea, 2024-10-15
| Award date | Qty | Each | CAGE | PN on award |
|---|---|---|---|---|
| 2024-10-15 | 1,232 | $1.89 | 9BU84 | HL18-8-10 |
| 2023-02-16 | 983 | $1.08 | 9BU84 | HL18-8-10 |
Median unit price by year: 2024 $1.89 ea (1 award) · 2023 $1.08 ea (1 award)
- DLA on hand 1,231; no backorder (as of 2026-08-31).
DLA prices at DLA quantities, not a quote.Source
DLA award prices at DLA quantities and terms, not a commercial quote. Each award may bundle packaging, delivery and inspection terms that a commercial buy does not. Vendors are shown by CAGE code only.
Joined through the NSN that DLA FLIS records for this part number. A part number on an award is the one cited on that award line; the same NSN can be bought under several part numbers. Awards loaded: 2023-01-03 to 2026-09-15.
Source: DLA FOIA Electronic Reading Room ↗, public FOIA releases. Files:
- 2023ContHist.zip/2023ContractHistory.txt (Contract History, snapshot 2024-06-24)
- 2024ContHist.zip/2024ContractHistory.txt (Contract History, snapshot 2025-08-07)
- contracthist2025.zip/contracthist2025.txt (Contract History, snapshot 2026-04-07)
- 2026-09-16-1038_contracthist.zip/2026-09-16-1038_contracthist.txt (Contract History, snapshot 2026-09-16)
- 2026-09-16-1038_ALTPLT.zip/2026-09-16-1038_ALTPLT.txt (ALT/PLT lead times, snapshot 2026-09-16)
- 2026-09-16-1038_OHandBO.zip/2026-09-16-1038_OHandBO_SEP2026.txt (On hand and backorder, snapshot 2026-09-16)
Compiled 2026-10-02.
| Family | Hi-Lok (LISI) |
|---|---|
| Head style | Protruding shear head (source: Hi-Shear HL18 drawing, title block) |
| Nominal diameter | 1/4" (-8) |
| Grip | max grip 0.625" (-10 = 10/16") |
| Material | Alloy steel per AMS6415, AMS6349 or AMS6382, AMS6322; 95,000 psi shear |
Decoded from the published numbering scheme; not a claim that this exact dash number is a stocked SKU, and not a certified design authority. Always verify against the controlling drawing, spec, and your stress group.
Series and strength (datasheet)
HL10 / HL18 protruding shear head · HL11 / HL19 100° flush shear head · typical collars HL70, HL79, HL82, HL94, HL97
HL10: 6Al-4V titanium, 95,000 psi shear minimum; HL18: alloy steel, 95,000 psi shear (160,000-180,000 psi tensile): Hi-Shear drawings (Hi-Lok Product Specification 342).
Datasheet (PDF) ↗Other head styles, same diameter and grip
- HL11-8-10 100° flush shear head
HL18 grip chart: 1/4" (-8)
Pin and collar · 5 steps
1/5Pin inserted
“Insert the pin into the prepared non-interference fit hole.”
Hi-Shear Hi-Lok and Hi-Lok/Hi-Tigue Installation Instructions, p.10, I.1 a ↗
Drawing traced from: a.
Source images (4): patent and government drawings
A patent drawing shows the patented design, which can differ in detail from today's catalog part. Each image says why it is tied to this family.
Required tooling, every brand
HL18-8-10 · diameter -8 (decoded) · Hi-Lok tool tables
Tools the fastener's process document lists for this size
- Hi-Lok adaptor tools Standard power or hand tools with Hi-Lok adaptor tools · Hi-Shear Hi-Lok and Hi-Lok/Hi-Tigue Installation Instructions, p.7, H. Tooling ↗
- HLA1051 Straight Driver (-5, -6, -8, -10) · Hi-Shear Hi-Lok and Hi-Lok/Hi-Tigue Installation Instructions, p.8, H.1 Standard Power Drivers ↗
- HLA2008 20° Offset Ratchet Wrench Driver (-5, -6, -8) · Hi-Shear Hi-Lok and Hi-Lok/Hi-Tigue Installation Instructions, p.8, H.1 Standard Power Drivers ↗
- HLA1008 Straight Collar Automatic-Feed Driver (-6, -8) · Hi-Shear Hi-Lok and Hi-Lok/Hi-Tigue Installation Instructions, p.8, H.2 Automatic Collar-Feeding Drivers ↗
- HLH311 / HLH110 Hand Tool Assembly · Hi-Shear Hi-Lok and Hi-Lok/Hi-Tigue Installation Instructions, p.9, H.3 Hand Tools ↗
- The Hi-Lok process document names tools for this size but prints no per-size tool and nose (adaptor) table; the maker's tool catalog it points to is not on file.
Tool catalogs are the manufacturers' as published in the cited edition; confirm current PNs with the tool maker before purchase. Install per the OEM process specification.
Install tooling
Decode details
| Series | Hi-Lok pin HL18 |
|---|---|
| Decode confidence | high |
| Numbering source | Hi-Shear HL10 drawing sheet 2 (Code) |
- "First dash number indicates nominal diameter in 1/32nds. Second dash number indicates maximum grip in 1/16ths." (HL10 sheet 2)
- No finish-code letters present.
- Head and material from the drawing title block.
- Collars are separate part numbers (HL10 lists typical collars HL70, HL79, HL82, HL94, HL97).
Government reference cross-reference (DLA FLIS)
Government reference cross-reference (DLA FLIS)
Reference numbers the Federal Logistics Information System records against the same National Stock Number. A supply-catalog cross-reference, not an engineering-approved interchangeability: confirm against the controlling drawing or spec before substituting.
HL18-8-10 is listed under NSN 5320-00-445-8291 PIN-RIVET
| Reference number | CAGE | FLIS reference type |
|---|---|---|
| BACB30FM8-10 | 81205 | Vendor item drawing reference |
Source: DLA Federal Logistics Information System, via DLA PUB LOG ↗ (FLIS Data Electronic Reading Room ↗). FLIS data as of 2025-03-18 (March 2025 snapshot).
- Hi-Lok by LISI, pin and collar
- Datasheet (PDF) ↗
- Manufacturer page ↗
- Numbering: Hi-Shear HL10 drawing sheet 2 (Code) ↗
Lead-time risk for this family (SpecLok sourcing assessment): Low
Supply signal
Supply signalfor this part number
- 8 CAGE codes with a part number recorded on NSN 5320-00-445-8291 (FLIS, March 2025).
- Last DoD award for PIN-RIVET items (FSC 5320): 2026-06-25; 2,535 awards since 2025-10-01.
- No SpecLok quotes yet.
A signal from records SpecLok holds, not availability, stock or a lead-time promise. FLIS lists who has recorded a part number for the item, not who makes it today. DoD awards carry no NSN or part number, so award activity is for the item name's class.
Sources: DLA FLIS Data Electronic Reading Room (PUB LOG) ↗, DLA PUB LOG ↗, USAspending.gov award search API ↗; DoD award data 2025-10-01 to 2026-07-06; compiled 2026-10-02.
Image credits: LISI AEROSPACE, HI-LOK™ and HI-LITE™ Fasteners product page, gallery ↗. Product images belong to their manufacturers.
Sources
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