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 Threadlocking Enhancements : Pellets

Adjustable Locking Pellets     
Consult Factory

ADJUSTABLE LOCKING PELLETS FOR SEELSKREW®, SEELBOLT® & SEELNUT® SELF-SEALING FASTENERS

FULLY ADJUSTABLE & REUSABLE PER IFI 124, IFI 524 & MIL-DTL-18240F, NASM25027

When assembled with a mating part the resilient engineered polymer pellet (normally Nylon) is compressed, and a locking action is established. APM Pellet Locking action takes place inside the threads due to its vibration dampening characteristics, as opposed to at the bearing surface. The resilience of the pellet holds the fastener in place without adhesives or thread distortion. The pellet’s resiliency also contributes to its superior degree of adjustability and repeated reusability.

Self-Sealing screws, bolts and nuts that have pellets installed can operate and deliver outstanding performance in both high and low temperature extremes without degradation. Under most operating conditions, these pellets are unaffected by vibration of reversal of stress. Installed in a drilled hole (just below the depth of the thread), APM pellets are typically positioned one to three threads back from the end of the fastener to assure ease of starting. Hole positioning can be modified to meet specific applications – contact Technical Sales for assistance.

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Material Reusability Effective
Temperature Range
Ordering
Code
Nylon Up to 15 on/off cycles -65°F to +250°F
(-54°C to +121°C)
NY
KEL-F* 0 (one installation and one removal) -320°F to +390°F
(-196°C to +198°C)
NB
Vespel** Up to 5 on/off cycles -450°F to +500°F
(-268°C to +260°C)
NBR

* KEL-F is a registered trademark of Minnesota Mining and Manufacturing Co.

** Vespel and Teflon are registered trademarks of EI. Dupont De Nemours & Co.

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The APM line of self-sealing fasteners includes self-sealing screws, self-sealing locking nuts, self-sealing locking bolts, self-sealing rivets, and self-sealing washers all designed to seal in/out air, water, lubricants and other liquid or gaseous contaminants.

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apm hexseal

Switch & Potentiometer Boots
Circuit Breaker Boots
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www.apmhexseal.com

The World's Most Hostile Environments Are Our Proving Grounds
For Electronics Controls As Well As Self-Sealing Fasteners

Since 1947,  the Electronics Division of APM HEXSEAL has lead the industry in developing and manufacturing  environmental protection sealing components for controls  that are mounted on switches, potentiometers and circuit breakers.  Using advanced elastomer molding technology, a broad range of sealing boots are produced to match most controls manufactures’ standard part numbers,  which are stocked by leading electronics and industrial distributors in the United States, Canada and World-wide. Most are IP66/68 ingress protection rated and UL recognized.  APM sealing products are used extensively in marine, medical, military, process industry, electronic instrumentation, off-road and construction equipment -- wherever hostile environmental/operational conditions exist.

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