Established in 1939 and based in South Bend, Indiana, ABRO Industries has built its legacy on delivering dependable, value-driven products across automotive, hardware, and household categories. From engine and fuel additives to air fresheners, cleaners, sealants, and masking tapes, ABRO’s portfolio is designed for professionals and consumers who expect both performance and consistency.

For nearly three-quarters of a century, ABRO has upheld a steadfast commitment to quality. Its world headquarters in Indiana centralizes operations—bringing together logistics, sales teams, design specialists, and brand stewards—to ensure product excellence and brand integrity. ABRO’s expansive global distribution network operates through independently-owned distributors in over 175 countries, enabling its solutions to reach every corner of the world with American roots and global impact.

With a product lineup that supports mechanics, DIYers, fleet operators, and homeowner maintenance alike—and a reputation built on trust and durability—ABRO continues to stand as a truly Made-in-USA innovator with worldwide influence.

ABRO ThreadLok High Strength (TL‑371) is a red permanent threadlocker formulated to secure heavy-duty fasteners and assemblies. It cures to a rigid bond resistant to shock, vibration, and heat. Ideal for component assemblies where disassembly is not desired. Made in South Bend, Indiana. Suitable for drivetrain, flange bolts, and critical structural fasteners.

ABRO ThreadLok High Strength Red Permanent

Fillers, Adhesives & Sealants

Sealants

Thread Lock

Red high-strength threadlocker engineered for permanent locking of fasteners requiring secure adhesion.

ABRO ThreadLok High Strength Red Permanent

$9.78

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