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At a Glance: Replacement spring pin (“bolt”) designed to lock components securely in place inside the AirCraft AT0016 Air Ratchet Wrench.
In pneumatic tools, some “bolts” aren’t the classic hex-head fasteners—they’re clever spring pins that bite into place and refuse to loosen under vibration. The AirCraft AT0016-12 Bolt is a replacement roll pin (spring pin) used in the AirCraft Air Ratchet Wrench (AT0016 series). It helps secure internal parts and assemblies so everything stays aligned and stable while the tool is working. If the original pin is worn, bent, or no longer grips firmly, you can get play, rattling, poor engagement and uneven performance. Replacing it is a small fix that can make the whole tool feel tight and trustworthy again.
AirCraft spring pin fastener for secure fitment and vibration resistance
Roll pins are designed to compress during installation and expand to hold securely in the bore. That makes them ideal for mechanisms exposed to constant cycling and vibration—exactly what an air ratchet lives through.
Extra Information
Intended as a spare part for AirCraft Air Ratchet Wrench assemblies (AT0016 series).
Replace if the pin is bent, worn, loose in its bore, or if you notice unusual play in the mechanism.
Use a correctly sized pin punch for removal and installation to avoid damaging the housing.
If a parts diagram is available under the Documents tab, use it to confirm the exact location and correct pin length required.
Pro Tip
When installing a roll pin, align everything first, then drive the pin in straight and steadily. A tiny dab of oil on the pin can help it seat smoothly without galling the bore.
Features
AT0016-series compatibility Designed as a replacement bolt/roll pin for the AirCraft Air Ratchet Wrench range.
Spring (roll) pin design Expands for a secure fit and resists loosening under vibration.
Durable steel construction Built for repeated loading and workshop conditions.
Service-ready spare Ideal for repairs, rebuilds and preventative maintenance.
Benefits
Restores tight assembly: Helps eliminate movement and looseness in the mechanism.
Improves reliability: Keeps parts aligned for consistent engagement and smoother operation.
Reduces downtime: Quick replacement that can solve rattles and sloppy fitment fast.
Safety
Disconnect the air supply and bleed remaining pressure before servicing the tool.
Wear eye protection when driving pins in or out—small parts can eject unexpectedly.
Use the correct punch and support the work area to prevent slipping and damage.
Work on a clean bench and keep small parts organised to avoid incorrect reassembly.
After reassembly, test the tool at low pressure first to confirm everything is secure and operating correctly.
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