Fractional 316 Stainless Steel Nylon Insert Thin and Standard Hex Locknut

Fractional 316 Stainless Steel Nylon Insert Locknuts

Thin and Standard Hex Locking Solutions for Corrosion-Critical Applications

Fractional 316 stainless steel nylon insert locknuts—available in both thin (jam) and standard hex profiles—are engineered to provide reliable vibration resistance and superior corrosion protection in demanding environments. Manufactured from marine-grade 316 stainless steel, these locknuts are ideal for applications exposed to moisture, chemicals, salt spray, and corrosive atmospheres where long-term performance is critical.

316 Stainless Steel Construction

Maximum Corrosion Resistance and Strength

316 stainless steel offers enhanced resistance to chlorides and harsh chemicals compared to 304 stainless, making it the preferred choice for marine, food processing, chemical processing, and outdoor industrial applications. These locknuts maintain structural integrity, thread strength, and appearance even in aggressive environments.

Nylon Insert Locking Mechanism

Proven Vibration Resistance Without Thread Damage

Each locknut features a nylon insert (nyloc® style) that creates prevailing torque by gripping the bolt threads. This non-metallic insert resists loosening caused by vibration and dynamic loads while protecting the mating threads from galling or damage. Nylon insert locknuts are reusable for multiple installations when properly maintained.

Thin (Jam) Hex Locknuts

Low-Profile Locking in Tight Clearances

Thin hex 316 stainless steel nylon insert locknuts are designed for applications where space is limited. Commonly used as secondary locking nuts or in low-clearance assemblies, they provide dependable locking force while minimizing stack height.

Standard Hex Locknuts

General-Purpose Locking Performance

Standard hex 316 stainless steel nylon insert locknuts offer full-height engagement for maximum thread contact and holding power. These are ideal for structural, mechanical, and industrial fastening applications requiring long-term vibration resistance and corrosion protection.

Fractional Sizes for Broad Compatibility

Easy Integration with Standard Hardware

Available in a wide range of fractional thread sizes, these locknuts are compatible with standard inch-series bolts and threaded rods, making them easy to integrate into existing assemblies and maintenance operations.

Common Applications

• Marine and coastal equipment

• Food and beverage processing

• Chemical and pharmaceutical facilities

• Outdoor structures and hardware

• Industrial machinery and MRO

For secure fastening in corrosive environments, fractional 316 stainless steel nylon insert thin and standard hex locknuts deliver dependable locking performance, durability, and peace of mind.