Stainless Steel 3/8 in. Nylon Lock Nuts (50-Pack)

These Hillman nylon insert lock nuts feature 18-8 stainless steel for strong corrosion resistance and a secure hold. Designed with a 3/8-16 coarse SAE thread, they resist loosening from vibration—ideal for outdoor, marine, and high-vibration applications.

Key Features:

• Corrosion-Resistant Stainless: 18-8 stainless steel construction for long-lasting durability in harsh environments
• Secure Nylon Insert: Built-in nylon collar helps prevent loosening from vibration without a separate lock washer
• SAE Coarse Thread: 3/8-16 thread fits standard SAE bolts for broad compatibility
• Bulk Value: 50-piece pack keeps projects moving and reduces downtime
• Easy Identification: Bright stainless finish and hex design for quick socket or wrench engagement

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What thread size are these lock nuts?
A: They are 3/8-16 coarse thread (SAE).

Q: Are they suitable for outdoor or marine use?
A: Yes. The 18-8 stainless steel provides strong corrosion resistance for outdoor and damp environments.

Q: Do I need a lock washer with these nuts?
A: No. The nylon insert acts as a locking mechanism to help prevent loosening from vibration.

Q: How many nuts are included?
A: 50 pieces per pack.

Q: What tools are needed for installation?
A: Use a standard wrench or socket sized for 3/8 in. hex nuts; install onto matching 3/8-16 bolts.

Sleek Utility with Lasting Polish

These stainless nylon lock nuts bring a refined, utilitarian gleam to any hardware moment, marrying function with a crisp, architectural finish. I love the subtle shine of 18-8 stainless—clean, modern, and confidently resilient. Style them with brushed steel brackets or exposed fasteners for a purposeful, industrial accent. Consider these an essential detail for luxurious, durable builds that feel intentional from the inside out.

Secure your projects with corrosion-resistant confidence—add these Hillman stainless nylon lock nuts to your cart today.