Skip to content
Close
SEARCH
CONTACT
PHONE HOTLINE: 800-346-4296 E-MAIL: sales@hayn.com
Contact Us
PHONE HOTLINE: 800-346-4296 E-MAIL: sales@hayn.com
Contact Us
Hayn Product Header (2240 x 660 px) (7)

Washer – Lock

Hayn Lock Washers are 18-8 stainless steel split ring washers for Traditional Cable Rail termination hardware, available in four nominal sizes from 1/4" through 1/2" to resist nut loosening under the vibration and thermal cycling that cable rail installations experience over time.

Strong Where It Matters

Washer - Lock

The split ring profile bites into both the nut and the bearing surface as the fastener is tightened, creating mechanical resistance to rotation that prevents the nut from backing off as the structure expands and contracts seasonally. Available in nominal sizes of 1/4", 5/16", 3/8", and 1/2" to match the thread sizes used across the Hayn Traditional cable rail termination stud and hex nut range. For thread-engagement locking rather than bearing surface locking, see the Hayn Hex Lock Nuts with Nylon Insert.

Request specifications
lock_washer

Washer – Lock

Part # Nominal Size
14LWAS 1/4″
516LWAS 5/16″
38LWAS 3/8″
12LWAS 1/2″

Lock washers are 18-8 stainless steel.

Engineered In America Every Hayn fitting is designed and manufactured at our facility in Rocky Hill, Connecticut — the same American workmanship that has set the standard for stainless steel rigging hardware since 1950.
Cold-Worked Production Hayn fittings are cold-worked, not cast. That distinction matters: the cold-working process refines grain structure, increases fatigue resistance, and produces a fundamentally stronger component — one built to perform when the load comes on it.
Precision Manufacturing Our Rocky Hill production floor runs CNC vertical mills, CNC lathes, large-capacity mill-turn centers, and waterjet cutting systems — all configured to produce hardware that meets exact specifications, every time.
75+ Years of Excellence Hayn has been engineering and manufacturing marine and architectural rigging hardware since 1950. That track record isn't just history, it's the design knowledge, failure data, and continuous improvement that goes into every product we make. 
  • Type 316 stainless steel construction for superior saltwater corrosion resistance
  • Manufactured in Rocky Hill, Connecticut to Hayn's proprietary tolerances
  • Precision-machined using advanced CNC manufacturing equipment



  • Engineered for seamless integration in marine and architectural rigging systems

  • Short lead times on both standard and custom components

  • Backed by 75 years of marine and architectural hardware expertise

More Products & Information

Hayn Product Header (2)

Let's Build Something Together

 Hayn has been engineering precision rigging hardware since 1950. So whatever your project demands, you're building with hardware that's been proven at sea and on structure for generations. 
Request Technical Specifications