Huck BOM / HuckBolt
Howmet/Huck · Blind bolt
High-strength blind bolt; HUCKCOMP variant adapts it for composite.
aka BOM · Blind Oversized Mechanically-locked · Ti-Matic · HUCKCOMP
P/N: BOM-R[dia]-[grip] · e.g. BOM-R8-6
Schematic cross-section, not to scale. Orange = the large blind-side upset; high clamp-up.
Shear
85–95 ksi
Blind bulb
large
Max service
≤ 900°F
Lead-time risk
Medium
Diameters
3/16, 1/4, 5/16, 3/8, 1/2, 0.625, 0.75"
Datasheet strength · Installed min shear 2,800 lb (3/16") to 45,100 lb (3/4"), steel; lbf not ksi — Huck BOM brochure.
Head styles
- Protruding
- 100° flush
Standards
- Howmet BOM — no public MIL/NAS spec stated
Materials & galvanic compatibility vs CFRP
| Alloy | Shear | vs CFRP | Notes |
|---|---|---|---|
| A286 CRES | 95 ksi | med | — |
| Titanium (Ti-6Al-4V) | 95 ksi | low | Ti-Matic / HUCKCOMP |
Install tooling & training
- Tool
- Push-and-pull install tool
- Special / proprietary
- Special tooling · proprietary
- Training
- Tool-specific.
- Inspection
- Swage lock; stem break; protrusion.
Three-piece (bolt/nut/sleeve) with swaged mechanical lock; one BOM can replace ~4 conventional fasteners. HUCKCOMP variant tunes the footprint for composite.
Sourcing
Lead-time risk: Medium
- Peerless Aerospace Fastener ↗
Largest dedicated aerospace fastener inventory; approved source for major OEMs + DoD; multi-year fixed pricing, bonded storage, designated hold-shelf, min/max + safety-stock programs.
- Boeing Distribution (Aviall / KLX) ↗
Formed from Aviall + KLX; broadest catalog coverage for OEM/MRO/airline; deep stock on commodity NAS/MS hardware.
- FDH Aero ↗
Single-source partner across hardware, electrical, consumables and licensed products; vendor-managed inventory.
Need a price or lead time?
Build a spec-complete RFQ and send it to distributors who stock Huck BOM / HuckBolt.
Strengths
- +Very high strength (95 ksi)
- +Mechanical lock resists vibration
- +Composite (HUCKCOMP) and titanium (Ti-Matic) variants
Trade-offs
- −Tool-specific install
- −Base BOM not composite-tuned — use HUCKCOMP
Typical applications
- · High-strength structural blind fastening
- · Weight-critical (Ti-Matic) and composite (HUCKCOMP) variants