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Cable tie sizes: length × width, bundle diameter and loop tensile class (18, 30, 40, 50, 120, 175 lb)
What are standard cable (zip) tie sizes: length, width, maximum bundle diameter and tensile strength class? · Standard part · basis: Ty-Fast catalogue table (26 rows), cross-checked against Swift Supplies' quick reference and an unattributed technical-data sheet; numbers only
Also called: cable tie sizes, zip tie size chart, zip tie length and width, cable tie bundle diameter chart, 50 lb zip tie size, 120 lb zip tie width, 18 lb cable tie 100mm, 40 lb zip tie 200mm, 4.8 mm cable tie, 7.6 mm cable tie 370mm, heavy duty zip tie 175 lb, releasable zip tie size, cable tie tensile strength chart, 300mm cable tie max bundle
Exact dimensions. True size, with no tolerance added.
- sizes
- 25 in table
Notes
- Nylon cable ties (zip ties, Ty-Raps) are sold by length and width, and by 'loop tensile' (the pull the closed loop holds): 18, 30, 40, 50, 120 and 175 lb classes in the Ty-Fast catalogue. The table is that catalogue's standard, releasable and heavy ties (continuous-loop 'mounting head', push-mount and identification ties are in the PDF but not tabulated here). The catalogue's inch lengths are nominal (within about 0.4 in of the mm figure: L-11-40 is 11.5 in / 282 mm, L-14-40 14.5 in / 358 mm); one row disagrees outright, L-28-120 as 28.0 in but 816 mm (28 in is 711 mm), shown as printed, so check the pack for that one. Widths are printed in mm rounded to whole mm; the inch widths (.100, .187, .300, .345) are the exact figures.
- Two other tables give the same sizes in mm: Swift Supplies: 100 × 2.5 (max loop Ø 20.5, 8 kg), 150 × 3.6 (36, 18 kg), 200 × 4.8 (49.5, 18 kg), 300 × 4.8 (81, 18 kg), 370 × 4.8 (103.5, 18 kg), 370 × 7.6 (105.5, 56 kg), 540 × 7.6 (158, 56 kg), 750 × 8.8 (226, 79 kg). An unattributed technical-data sheet gives tensile by width: 2.5 mm 18 lb (8.1 kg), 3.6 mm 40 lb (18.2), 4.8 mm 50 lb (22.2), 7.6 mm 120 lb (54.4), 9.0 mm 175 lb (79.4), 12.7 mm 250 lb (114), and usable bundle diameter by length: 100 → 22, 140 → 33, 160 → 40, 200 → 53, 300 → 76, 370 → 102, 430 → 110, 530 → 140, 580 → 152, 710 → 190, 1020 / 1030 → 295 mm.
- Sources disagree on the same nominal tie, so a size does not fix a tensile class: a 4.8 mm tie is 50 lb in the technical-data sheet and about 18 kg (40 lb) in Swift's guide; a 100 mm × 2.5 mm tie is 18 lb in both; 7.6 mm is 120 lb (54.4 kg) vs 56 kg. Bundle ranges also differ (200 mm: 2 to 51 in Ty-Fast, Ø49.5 or 53 elsewhere). Buy by the class printed on the pack; UL 62275 / IEC 62275 is the test standard for cable ties, but its limits are paywalled and are not reproduced here.
- Ty-Fast lists UL 94 V-2 flammability on these nylon ties; the unattributed sheet gives nylon 66, −40 to 85 °C. Tool compatibility and mounting-head hole sizes are in the PDF but not tabulated.
- Left out: files (a tie's head and strap profile are not published as numbers) and 250 lb ties beyond the table above. The existing zip-tie sizes page covers the 4.8 × 1.3 mm tie as a hobby material.
Cable tie sizes: length × width, bundle diameter and loop tensile… size chart
| series | catalogue no. | length, mm | length, in | width, mm (printed) | width, in | bundle Ø range, mm | loop tensile, lb (kg) |
|---|---|---|---|---|---|---|---|
| Miniature 18 | L-4-18 | 102 | 4.0 | 3 | .100 | 2–16 | 18 (8.2) |
| Miniature 18 | L-6-18 | 163 | 6.4 | 3 | .100 | 2–38 | 18 (8.2) |
| Miniature 18 | L-8-18 | 202 | 8.0 | 3 | .100 | 2–51 | 18 (8.2) |
| Intermediate 30 | L-5-30 | 145 | 5.6 | 3 | .130 | 2–32 | 30 (13.6) |
| Intermediate 40 | L-8-40 | 215 | 8.5 | 3 | .140 | 2–51 | 40 (18.2) |
| Intermediate 40 | L-11-40 | 282 | 11.5 | 4 | .146 | 2–76 | 40 (18.2) |
| Intermediate 40 | L-14-40 | 358 | 14.5 | 4 | .146 | 2–102 | 40 (18.2) |
| Standard 50 | L-5-50 | 140 | 5.5 | 5 | .187 | 2–25 | 50 (22.7) |
| Standard 50 | L-7-50 | 193 | 7.5 | 5 | .187 | 2–44 | 50 (22.7) |
| Standard 50 | L-11-50 | 282 | 11.1 | 5 | .187 | 2–76 | 50 (22.7) |
| Standard 50 | L-14-50 | 358 | 14.1 | 5 | .187 | 2–102 | 50 (22.7) |
| Heavy 120 | L-8-120 | 202 | 8.0 | 8 | .300 | 5–51 | 120 (54.4) |
| Heavy 120 | L-11-120 | 282 | 11.1 | 8 | .300 | 5–76 | 120 (54.4) |
| Heavy 120 | L-14-120 | 363 | 14.2 | 8 | .300 | 5–102 | 120 (54.4) |
| Heavy 120 | L-18-120 | 457 | 18.0 | 8 | .300 | 5–124 | 120 (54.4) |
| Heavy 120 | L-24-120 | 616 | 24.2 | 8 | .300 | 5–178 | 120 (54.4) |
| Heavy 120 | L-28-120 | 816 | 28.0 | 8 | .300 | 5–230 | 120 (54.4) |
| Extra heavy 175 | L-24-175 | 612 | 24.0 | 9 | .345 | 5–184 | 175 (79.3) |
| Extra heavy 175 | L-34-175 | 864 | 34.0 | 9 | .345 | 5–254 | 175 (79.3) |
| Extra heavy 175 | L-36-175 | 914 | 36.0 | 9 | .345 | 70–273 | 175 (79.3) |
| Extra heavy 175 | L-41-175 | 1032 | 41.0 | 9 | .345 | 5–305 | 175 (79.3) |
| Extra heavy 175 | L-48-175 | 1216 | 48.0 | 9 | .345 | 5–375 | 175 (79.3) |
| Releasable 50 | L-5-50R | 150 | 5.9 | 7.5 | .295 | 3–32 | 50 (22.7) |
| Releasable 50 | L-8-50R | 198 | 7.8 | 7.5 | .295 | 3–51 | 50 (22.7) |
| Releasable 50 | L-10-50R | 286 | 11.265 | 7.5 | .295 | 3–76 | 50 (22.7) |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Ty-Fast catalogue (mecampbell.com PDF) | Cable ties: Miniature 18, Intermediate 30 / 40, Standard 50, Heavy 120, Extra heavy 175 lb loop tensile; length, width, bundle range; releasable, mounting-head, push-mount | web | Publisher's page; dimensions are facts |
| Swift Supplies (quick reference guide) | Nylon cable ties: length x width, max loop diameter, min loop tensile (8 / 18 / 56 / 79 kg) | web | Publisher's page; dimensions are facts |
| cable tie technical data (Shopify PDF) | Tensile strength by tie width (2.5 to 12.7 mm) and usable bundle diameter by length (100 to 1030 mm) | web | Publisher's page; dimensions are facts |
Xem scan
File coming
No downloadable true-size file yet: the published figures do not fix the whole shape, and Xem never guesses a number. A measured scan is planned; request it and it moves up.
https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=cable-ties-sizes-and-tensile-classes
Fits with
Questions
What size is a 50 lb zip tie?
In the Ty-Fast catalogue a standard 50 lb tie is .187 in (about 5 mm) wide and 140, 193, 282 or 358 mm long; the bundle range runs from 2 mm up to 25, 44, 76 or 102 mm.
How big a bundle does a 300 mm cable tie close?
About 76 mm in the technical-data sheet (4.8 mm wide), 81 mm in Swift's guide.
What tensile strength do ties have?
Classes of 18, 30, 40, 50, 120 and 175 lb loop tensile (8.2 to 79.3 kg) in this catalogue; width mostly sets the class.
Do all makers give the same strength for the same width?
No: a 4.8 mm tie is 50 lb in one sheet and about 40 lb in another; use the class printed on the pack.