APM SEELBOLT®
Reusable, High-Pressure Self-Sealing Bolts

The APM SEELBOLT® is the original self-sealing bolt designed and patented by APM. The APM line of self-sealing bolts, screws, and nuts are designed to seal out air, water, lubricants and other liquid or gaseous contaminants. Our self-sealing bolts and screws are available in many standard thread sizes and with optional O-ring sealing materials. Self-sealing bolts and screws can also be supplied with either self-locking pellets, strips or patch, Black oxide, painted heads, or in a captivated (KAPTO-SKREW®) configuration. Sheet metal and other type fasteners available on special order.

APM's patented, pre-assembled self-sealing bolts and screws provide both fastening and sealing integrity in a single unit. Unique design features a resilient silicone O-ring held captive in a precision engineered groove under the head. Vibration-resistant and reusable bolts, screws and nuts withstand internal and external pressures/vacuum to 20,000+ psi. When vibration is an issue, APM offers a full line of self-locking add-ons (pellets, strips, patches).

Features and Benefits:

Positive sealing under vacuum or pressure
Install like a conventional bolt
Reusable & compatible with all surface finishes
360° 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 & CSA Recognized
Optional threadlocking add-ons
Type ST, SB & AN

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

READ MORE ABOUT:
Self-Sealing Screws
Self-Sealing Locking Nuts
Self-Sealing Washers
Self-Sealing Fasteners FAQ

To Order Self-Sealing Bolts
Call APM Hexseal
800.498.9034

APM SEELBOLT® Reusable, High-Pressure Self-Sealing Bolts

APM SEELBOLT®
Reusable, High-Pressure Self-Sealing Bolts