Avdel Avdelok
Avdel · Lockbolt / pin-collar
Robust swaged lockbolt — strong clamp, easy inspection, two-side install.
aka Avdelok · structural lockbolt
Schematic cross-section, not to scale. Orange = the swaged collar (needs both-side access).
Shear
40–70 ksi
Blind bulb
n/a
Max service
≤ 800°F
Lead-time risk
Low
Diameters
3/16, 1/4, 5/16, 3/8"
Head styles
- Protruding
Standards
- Avdel Avdelok series
Materials & galvanic compatibility vs CFRP
| Alloy | Shear | vs CFRP | Notes |
|---|---|---|---|
| Aluminum | 42 ksi | high | — |
| Alloy steel | 65 ksi | med | — |
| Stainless (CRES) | 60 ksi | low | CRES |
Install tooling & training
- Tool
- Avdel 722 / 734 installation tool
- Special / proprietary
- Special tooling · proprietary
- Training
- Tool-specific; straightforward.
- Inspection
- Collar lock engagement; visual tamper check.
Two-piece pin + swaged collar; high, controlled clamp without relying on friction.
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.
- Incora ↗
Authorized distributor for 60+ manufacturers; AS9100 / EN9120 / FAA AC 00-56; strong vendor-managed-inventory (VMI) and kitting programs.
- Boeing Distribution (Aviall / KLX) ↗
Formed from Aviall + KLX; broadest catalog coverage for OEM/MRO/airline; deep stock on commodity NAS/MS hardware.
Need a price or lead time?
Build a spec-complete RFQ and send it to distributors who stock Avdel Avdelok.
Strengths
- +High controlled clamp force
- +Excellent vibration resistance
- +Easy visual inspection; multiple alloys
Trade-offs
- −Needs both-side access
- −Not composite-optimized
- −Proprietary tooling
- −Less common in aero primary structure
Typical applications
- · Vibration-resistant structural fastening
- · Two-side accessible joints
- · Cost-sensitive lockbolt applications