Cable Ties vs. Hook-and-Loop Straps: Choosing the Right Cable Management for Data Centre Racks

Data centre rack cabling benefits from fastening methods that can be readjusted.

Three months after a data hall is handed over, an engineer returns to the same rack. This time the job is to add two switches and remove six old patch cables. Every nylon cable tie installed during the original build must now be cut off one by one, and the bundle must be re-tied afterwards. If the cutter slips, a fibre patch cord next to it may be damaged. AI server racks already carry far more cables than traditional racks, often several hundred per rack, and they are re-cabled frequently. In that environment, a fastener that locks only once gradually becomes a maintenance cost. This article explains the difference between cable ties and hook-and-loop straps, the matching KSS part numbers, and the situations each one is designed for.

1. Two Different Fastening Principles

A nylon cable tie is a locking fastener. The toothed strap engages with a pawl and locks in one direction only. Tension depends on how hard the installer pulls, and removal requires cutting. It is a single-use consumable. A hook-and-loop strap works differently. The hook face and the loop face join together, and the strap passes through a buckle and folds back on itself. It can be opened at any time, retensioned, and reused.

The KSS catalogue covers both. For bundling and grouping cables along rack rows, the CV series nylon cable ties apply (0301 series, UL recognised NYLON 66, flame rating 94V-2, length 63.7 to 1,500 mm, width 2.5 to 9.0 mm, tensile strength 7 to 462 lbs / 3 to 210 kgs, catalogue P.64-65). For network and signal cables inside the rack, the MGL and MTL hook-and-loop straps apply (0351 / 0352 series, catalogue P.93). This is not a question of which product is better. Each one solves a different fastening requirement.

2. Why Network and Fibre Cables Should Not Be Bundled Too Tightly

High-speed network cables (UTP and STP) and fibre patch cords are far more sensitive to external pressure than standard power cables. A nylon cable tie applies pressure over a narrow contact area. If the bundle is pulled too tight, the cable jacket and internal structure can be deformed, which affects transmission quality. On site, tension is usually judged by hand, so it is difficult to standardise.

The KSS catalogue describes the MGL and MTL series clearly: designed for bundling network cables, signal cables and power cables, and reusable. Repeated opening and adjustable tension match the two constants of a data centre. First, cables must not be compressed too tightly. Second, the cabling keeps changing.

ANSI/TIA-942-C has also raised the minimum rack width to 800 mm for the main, intermediate and horizontal distribution areas, while VSFF connectors push fibre density towards 400G and 1.6T (16 fibre) applications. The number of cables in a single rack is now far higher than in a traditional rack. The more cables there are, the denser they become, and the more often they change, the more valuable a reusable fastener becomes. (Trend data source: publicly available ANSI/TIA-942-C technical material.)

3. MGL vs. MTL: Plastic Buckle or Metal Buckle

KSS offers two hook-and-loop strap series. The main differences are the buckle material and the size range:

Nylon cable ties and hook-and-loop straps serve different fastening requirements.

 

The selection rule is simple. Choose MGL when a single strap must hold a wider or thicker bundle, since the strap width reaches 90 mm. Choose MTL when the bundle is narrower but the buckle needs to be stronger, or when the required length is either longer (up to 702 mm) or shorter (from 153 mm).

4. When a Cable Tie Is Still the Correct Choice

Hook-and-loop straps do not replace cable ties. In the following situations, cable ties, ducts or clamps remain the correct solution:

 

In one sentence: use cable ties where a permanent lock is needed and where a flame or weather rating must be documented; use hook-and-loop straps where the bundle is opened frequently and the cables must not be compressed. In practice both are used inside the same rack. This is not an either-or decision.

Cable ties and hook-and-loop straps typically work side by side inside a rack.

5. Three Common Selection Mistakes

Mistake 1: assuming hook-and-loop straps can replace every cable tie. Reusability is an advantage, but it also means the strap is not a permanent lock. Fixing points that require a flame rating (94V-2 or 94V-0), a weather rating, or a documented tensile strength should still use CV series cable ties. The current KSS catalogue lists material, dimensions and application for the MGL and MTL series, but does not state a flame rating or a tensile strength value. If a project specification requires a flame rating or a mechanical strength value for hook-and-loop straps, please confirm with our sales team first.

Mistake 2: assuming a tighter bundle is a safer bundle. This may hold for power cables, but the opposite is true for high-speed network cables and fibre. These cables should be bundled with moderate tension and some slack, which is exactly what the adjustable tension of a hook-and-loop strap provides.

Mistake 3: assuming every part in a series shares the same specification. MGL and MTL are both hook-and-loop straps, yet the buckle material, width and length ranges differ significantly (MGL 15 to 90 mm wide, MTL 9 to 11.8 mm wide). Within the CV series the range is even wider, from 63.7 to 1,500 mm in length and 7 to 462 lbs in tensile strength. Always verify specifications part number by part number rather than by series name.

Please note: certification coverage varies by specific part number and SKU. Please confirm the applicable part numbers and current certificates with our sales team for each project.

About KSS: One Supply Base for the Full Cable Management Layer

KSS was founded in 1969 and is a global leader in wiring accessories. Its products are sold in 128 countries and serve more than 40,000 customers, making KSS one of the largest cable tie and wiring accessory manufacturers in Asia. The dedicated KSS research and manufacturing park covers 500,000 square metres, daily cable tie output reaches 50,000,000 pieces, and the fully automated warehouse system holds the equivalent of more than 1,000 twenty-foot containers. For a data centre project the practical benefit is direct: hook-and-loop straps, cable ties, wiring ducts, cable clamps, wire markers and terminals can all be sourced from one brand, with consistent specification data and quality standards, which also makes it easier to establish a stable secondary supply source.

Contact

For complete specifications and pricing on KSS MGL and MTL hook-and-loop straps, CV series cable ties, or the full data centre cable management range, please get in touch:

Jwo Yiih Enterprise CO., LTD.

Contact us at sales@jwoyiih.com or call +886-4-8760280 for the full solution package and part number list.

Note: all part numbers, specifications and catalogue page numbers in this article are taken from the official KSS master catalogue and have been verified item by item (page numbers refer to the printed catalogue pagination). Rack width, fibre density and cable count trend data are taken from publicly available ANSI/TIA-942-C technical material. Certification coverage varies by specific part number and SKU. For a formal quotation, please confirm current part numbers and valid certificates with our sales team.