Self-Sealing Fasteners, Washers & Threadlockers

SEELSCREW® Self-Sealing Screws
SEELBOLT® Self-Sealing Bolts
SEELNUT® Self-Sealing Locking Nuts
SEELRIVET® Self-Sealing Rivets
SEELOC® Self-Sealing Washers

Including Military Standard MS3212, 3213 Patent No. 3,175,454

APM's patented, pre-assembled self-sealing screws and fasteners provide both fastening and sealing integrity in a single unit. Unique design features a resilient silicone O-ring held captive in a precision asymmetrical groove under the head. Vibration-resistant and reusable screws, bolts and nuts withstand internal and external pressures/vacuum to 20,000+ psi. When vibration is an issue, APM offers a full line of pre-applied self-locking techniques (pellets, strips, patches). SEELOC® Washers are self-sealing, vibration-resistant washers, each having a silicone rubber section, molded and bonded to a stainless steel formed washer ideal for large or slotted holes.

Features and Benefits:

Positive sealing under vacuum or pressure
Install like a conventional fastener
Reusable & compatible with all surface finishes
Metal-to-metal contact assures fastening integrity
Optional O-ring seal materials - silicone rubber, BUNA-N,
*Viton®, others (see Materials & Characteristics Chart)
Uniform, high-strength design
Meets Military MIL-S-82496A spec for integral O-ring self-sealing machine screws
UL Recognized
UL Tested
Optional threadlocking add-ons
Optional tamper-resistent heads
No chemicals to apply, no worker respiratory or environmental disposal issues

Typical Applications:

Instrumentation /Electronics-Electrical panels
Fuel tanks
Pressure sensors, gauges, meters
Gear/transmission boxes
Valves
Motor housings
Portable instruments
Military equipment (MS3212, 3213) - underwater, weapons
Food processing systems
Medical equipment
Marine panels & hulls
Off-road vehicles & equipment
Recreational vehicles & equipment
Hydraulic fluid systems - gear boxes, pumps, transmissions, cylinders, values, compressors
Environmental monitoring & controls, HAZMAT equipment
Electronic controls
Consumer appliances, tools
Computer components
Motors
Cabinets, enclosures
Any application where both fastening and sealing are required

*Viton® is a registered trademark of DuPont Performance Elastomers.

About APM's Sealing Boots Division:
The Electronics Division of APM HEXSEAL develops and manufactures environmental protection sealing components for controls that are mounted on switches, potentiometers, encoders, and circuit breakers. Using advanced elastomer molding technology, a broad range of sealing boots are produced to match most controls manufactures’ standard part numbers. Most are IP66/68 ingress protection rated and UL recognized.

About APM's Self-Sealing Fastener Division:
The APM line of high-pressure, reusable, 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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HEXSEAL®, SEELSKREW®. SEELBOLT®, SEELNUT®, SEELRIVET®, SEELOC® are registered trademarks of APM Corp.

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