Packing Steel and Pet Strap Clip/Seal 19mm 25mm 32mm GI Clip | MS Clip

Metal Seals, which are high-strength fasteners used to secure the ends of steel or heavy-duty plastic (PET) strapping. Unlike the open-faced “C-shaped” clips, these are continuous tubes that the strapping must be threaded through before tensioning.

Description

These seals are manufactured from galvanized or bright-finish cold-rolled steel. The “closed” or “push-type” design is specifically intended for use with push-type tensioners and is commonly used on irregular, round, or small surfaces (like pipes, bundles, or coils) where a standard flat-surface tensioner won’t fit.

Because they are fully enclosed, they provide superior joint efficiency and prevent the strap ends from sliding out before the crimping process is complete.

---

Technical Specifications

While sizes are chosen based on the strap width, the general industry standards for these clips are:

Feature	Specification
Material	Low-carbon galvanized steel (rust-resistant)
Compatible Strapping	Steel (High-tensile/Regular) or Heavy-Duty PET
Common Widths	19mm, 25mm, 32mm
Seal Gauge (Thickness)	.020″ to .031″ (standard for heavy-duty)
Joint Type	Requires a single-notch or double-notch sealer
Surface Finish	Zinc-plated or Waxed (for easier threading)

---

Key Uses

• Round/Irregular Bundling: These are the standard choice for securing pipes, timber logs, or steel rods where the strap must wrap around a curved surface.
• Heavy Machinery Export: Used for securing heavy equipment to flatbeds or inside shipping containers where maximum joint security is required.
• Small Surface Palletizing: Ideal for pallets that do not have a large flat top-surface for a standard tensioner to rest upon.

---

Advantages of Push-Type Seals

1. High Joint Efficiency: Once crimped, the “tube” design grips both the top and bottom straps across the entire width, reaching up to 75-80% of the strap’s break strength.
2. Pre-Threading: You can thread the strap through the seal before applying tension, which is much easier when working in tight spaces or vertically.
3. Durability: The galvanized coating prevents the seal from rusting, which is critical for loads that will be stored outdoors or shipped via sea freight.

Selection Tip: If you are using PET (Plastic) strapping, ensure your sealer is designed to “deep crimp” these clips. Because PET is slicker than steel, the seal needs a more aggressive deformation to prevent the plastic from sliding out under high tension.