Heavy Duty Screw Eyes / Eye Lag Screws (Shoulder & Non-Shoulder) – Stainless Steel & Zinc – Manufacturer Direct

Premium Quality Screw Eyes and Eye Lag Screws: The Ultimate Anchoring Solution

At Handan Bolt, we are a leading manufacturer of high-tensile Screw Eyes (also known as Eye Lag Screws or Lag Eye Bolts). Located in China’s fastener capital, Yongnian, we produce millions of these essential anchoring components for hardware distributors, rigging suppliers, and DIY chains globally. Whether you need small brass screw eyes for hanging picture frames or massive galvanized lag eyes for industrial tie-downs, we have the manufacturing capabilities to meet your exact specifications.

What is a Screw Eye?

A Screw Eye is a type of Eye Bolt (Read more on Wikipedia) that features a wood screw thread (lag thread) instead of a machine thread. It has a looped head “eye” on one end and a sharp, tapered screw point on the other. This design allows it to be screwed directly into wood, masonry (with a shield), or other soft materials without the need for a nut.

Shoulder vs. Non-Shoulder: What’s the Difference?

We manufacture both styles to suit different installation requirements:

• Shoulder Screw Eyes: These feature a thickened “skirt” or flange at the base of the eye where the threads begin.
  • Benefit: The shoulder allows the eye to be screwed tightly flush against the surface, providing greater stability and a cleaner, finished look. It minimizes the risk of bending if the load is pulled at a slight angle.
• Non-Shoulder (Plain) Screw Eyes: These have threads that run almost all the way up to the eye loop.
  • Benefit: They are typically more cost-effective and are ideal for standard vertical hanging applications where a flush fit is not critical.

Material and Finish Options

Durability is key for anchoring hardware. We offer a range of materials:

1. Carbon Steel (Zinc Plated)

Our most popular option for general construction and indoor/outdoor use. The heavy Zinc Plating (Galvanized) provides a bright silver finish and protects the steel core from rust and corrosion. Ideal for garden trellises, washing lines, and garage organization.

2. Stainless Steel (304 & 316)

For marine, coastal, or food-processing environments, Stainless Steel is the only choice. It offers superior resistance to saltwater and harsh chemicals, ensuring the screw eye will never rust or seize up.

3. Solid Brass & Brass Plated

For decorative purposes, such as in cabinetry, curtain fixtures, or interior design, our Brass Screw Eyes offer a premium golden aesthetic.

Applications

Screw Eyes are incredibly versatile fasteners used across various industries:

• Cable Management: Guiding wires and cables along wooden beams.
• Rigging & Tensioning: Acting as an anchor point for turnbuckles and wire ropes.
• Hanging & Storage: Suspending tools, ladders, potted plants, and lights from ceilings.
• Gate & Door Hardware: Used in conjunction with hook latches.

Installation Tips

While smaller screw eyes can be installed by hand, for larger “Lag” sizes, we recommend:

1. Drilling a pilot hole slightly smaller than the shank diameter to prevent wood splitting.
2. Using a screwdriver shank or a pair of pliers inserted through the eye to provide leverage for turning.

Why Source from Handan Bolt?

Custom Sizing: We can manufacture custom thread lengths, eye diameters, and wire thicknesses based on your technical drawings.
Retail Packaging: We offer blister packs, polybags with headers, and bulk carton packing options for wholesalers.
Quality Assurance: All our lag screws are tested for sharpness (quick bite) and torsional strength.

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