Self-Sealing Fasteners

O-Ring Type Screws and Nuts
Pre-Applied Sealants

IRWIN provides a wide range of solutions for self-sealing fasteners.

Screws and nuts with pre-assembled O-ring seals

Economical alternatives such as pre-applied sealants.

Thin metal solutions

Positive seals for up to 500 PSI

Crushable mastics to fill and seal holes

Advanced Sealing

Biseal 0630 wax-based material seals sheet-metal holes on fastener installation [3.4M]
ND Expandable Mastics create heat-activated seals expanding up to 400% [3.3M]
ND Crushable Mastic Sealer fills gaps and voids around fasteners [2.1M]
Plastisol Applied-to-Metal improve on O-rings; Open-Mold alternative to injection molding [1.9]
ST-3 thread sealant and locking compound [2.8M]

APM Self Sealing Fastener and Washer Tutorial

Catalog
Self-sealing fasteners. Threadlockers and self-sealing washers, MIL MS3212, 3213, high pressure, reusable, vibration-resistant.
12 pages [2.5mB]

Datasheet
Self-sealing washers, UL recognized, vibration-resistant, for electrical and mechanical environantal applications.
1 page [230kB]

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