Swage Lag Screws provide a surface mounted end for your cable railings and are typically paired with a Threaded Terminal or Lag Screw Turnbuckle. The Lag Screws are to be attached to wood surfaces and are good for indoor or outdoor applications. Swage Lag Screws are affixed to the cable using a hand crimper tool. They offer a streamlined, low-profile alternative to bulky turnbuckles, keeping your deck view clean and modern.
Key Technical Specs
Material: Standard kits are crafted from T316 Marine-Grade Stainless Steel to prevent rust and corrosion in harsh outdoor or coastal areas.
Cable Compatibility: Most frequently designed for 1/8-inch or 3/16-inch stainless steel wire ropes.
Pull-Out Strength: High-quality lag screws typically support a pull-out force of up to 580 kg (approx. 1,278 lbs) to hold structural tension.
How They Work (Left vs. Right Hand Threads):
Most inline swage lag screw systems require pairing a Left-Hand (LH) thread screw on one end of the cable run with a Right-Hand (RH) thread screw on the opposite end.
Tensioning: When you spin the cable body (or screw both ends in simultaneously using a specialized wrench), the opposing threads pull the cable tight from both sides without twisting or warping the wire.
Anchoring: The lag screw end bites directly into wooden balusters or posts, eliminating the need for back-side nuts and washers.
Step-by-Step Installation Basics
Mark and Drill: Map out your runs (typically 3-inch to 4-inch spacing) and drill precise pilot holes into your wood posts.
Swage/Crimp: Insert the raw cable end into the hollow barrel of the lag screw. Use a hydraulic crimping tool to compress the metal sleeve firmly around the wire.
Drive the Screws: Twist the lag thread into your terminal posts using the matching installation wrench often provided in standard kits.
To help you choose the right kit, could you tell us:
What is the total length of your longest cable run?
Are you using 1/8-inch or 3/16-inch diameter cables?
Do you prefer a classic metallic stainless finish or a black PVD and sleek black oxidized look?
Haifan Railing offer a wide variety of parts for cable railing systems to contractors and home-owners alike.
You'll find all the right fittings for your custom cable railing projects here!
Why Choose Us?
Haifan Railing has helped millions of families with their cable railing projects during the past years.
We believe that home renovation should be easy and affordable.
So we work with every effort to provide quality products and professional service, to make Haifan a reliable brand.
If you are looking into architectural hardware or planning a DIY build,
Would you like to know what size steel cable this typically accommodates,
or do you need a recommendation on the proper crimping tools required for installation?
Like https://www.haifan-rigging.com/cable-railing-hardware/ or https://www.haifanrailing.com/
We are happy to discuss the details with you!
