Huck Magna-Lok
Howmet/Huck · Blind rivet
Hole-filling structural blind rivet — fixes misalignment without rework.
aka MagnaLok · hole-filling blind rivet
Schematic cross-section, not to scale. Orange = the large distributed blind-side bulb.
Shear
40–65 ksi
Blind bulb
large
Max service
≤ 800°F
Lead-time risk
Low
Diameters
3/16, 1/4, 3/8, 1/2"
Head styles
- Protruding
- 100° flush
Standards
- Huck Magna-Lok series
Materials & galvanic compatibility vs CFRP
| Alloy | Shear | vs CFRP | Notes |
|---|---|---|---|
| Aluminum | 45 ksi | high | — |
| Alloy steel | 60 ksi | med | — |
| Stainless (CRES) | 55 ksi | low | 316 CRES |
Install tooling & training
- Tool
- Conventional pull tool
- Special / proprietary
- Standard tooling
- Training
- Standard rivet-gun skill.
- Inspection
- Circle-lock groove visible; mandrel flush break.
360° internal lock with a self-plugging blind-side upset; a visible circle-lock groove confirms a good install. Fills irregular holes other rivets can't.
Sourcing
Lead-time risk: Low
- 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.
- Incora ↗
Authorized distributor for 60+ manufacturers; AS9100 / EN9120 / FAA AC 00-56; strong vendor-managed-inventory (VMI) and kitting programs.
Need a price or lead time?
Build a spec-complete RFQ and send it to distributors who stock Huck Magna-Lok.
Strengths
- +Fills misaligned/irregular holes — no re-drill
- +360° lock — vibration resistant
- +Wide 5:1 grip range cuts inventory
Trade-offs
- −Not composite-specific
- −Not removable
- −Steel variant weaker than blind bolts
Typical applications
- · Misaligned / slotted / irregular holes
- · Wide gap closure (5:1 grip range)
- · Metal primary/secondary structure