# SAE J1508 worm-gear hose clamp sizes: SAE number to min / max diameter and band width, sizes 4–312 > What diameter range does an SAE size 6, 8, 10, 12, 16, 20, 24 worm-gear hose clamp fit? - Category: Tri-clamp & pipe › Pipe, tube & threads - Kind: Standard part - Basis: A worm-drive clamp specification sheet headed SAE J1508 Type F and M, cross-checked against Dixon's HS / HSS clamp table; numbers only (a clamp band has no published profile) - Page: https://xemstudio.com/objects/worm-gear-hose-clamps-sae/ · JSON: https://xemstudio.com/api/geometry?object=worm-gear-hose-clamps-sae · Plain text: https://xemstudio.com/objects/worm-gear-hose-clamps-sae/sheet.txt - License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license - Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/) **Exact dimensions.** True size, with no printing tolerance added. ## Notes - The SAE number is a size code for the clamp; the diameters are the sizes of hose, tube or barb the clamp is meant to close on, in inches as printed (mm columns are computed as inch × 25.4 and rounded to 0.1 mm). Min is the smallest effective clamping diameter and max the largest. - Agreement: for every size 6 to 212 listed in both, the specification sheet and Dixon's HS table print identical min and max. Size 4 is on the sheet and in Zoro's chart (7/32 to 5/8 in); Dixon's range starts at 6. Sizes 60, 200, 224, 236, 248, 312 are in Dixon's table only. - Disagreement: Zoro's chart and a Unilog catalogue print different numbers for several sizes: for example size 8 max 1 in in both (sheet and Dixon: 29/32), size 10 max 1-1/8 in both (1-1/16), size 36 min 7/8 in Unilog (1-13/16), size 72 min 3-1/8 in Unilog (1-7/8), and Zoro's size 64 min 2-1/2 in is smaller than its size 60's min. Dixon's table prints size 12 max as '1-1/14' (a typo for 1-1/4, which the sheet gives). Those chart numbers are not used. A third source (crimpsupply, SAE 4 mini) is titled 1/4 to 5/8 in, not 7/32 to 5/8, for size 4, and its SAE 6 page gives 7/16 to 3/4 in against 25/32 on the sheet. Check the clamp's own printed range for a tight fit. - Band width: the specification sheet lists the clamp part families at 5/16 in (SAE 4 and 6, the miniature type M), 1/2 in and 9/16 in (type F). The band-width column in Dixon's table is garbled in the source, and a Unilog catalogue lists 9/16 in for all its sizes, so the 'bands offered' column shows what the specification sheet offers per size and is not a requirement of the standard. Band thickness, screw head size, housing length and slot pitch are not published in any source used, so no clamp is drawn. - Also in the sources, not in the table: Jubilee-style British clamps (BS 5315) use millimetre ranges and 9.9 or 13 mm bands and are a different series; they are not SAE sizes. - McMaster-Carr's hose-clamp category (worm-drive, NAS 1922 and MS 35842 types appear in its URLs) has per-part STEP; linked, not copied. ## Sizes | SAE size | min diameter (in) | max diameter (in) | min (mm, computed) | max (mm, computed) | band widths offered (in) | which sources | |---|---|---|---|---|---|---| | 4 | 7/32 | 5/8 | 5.6 | 15.9 | 5/16 | sheet; Zoro agrees (Dixon has no size 4) | | 6 | 7/16 | 25/32 | 11.1 | 19.8 | 5/16, 1/2, 9/16 | sheet; Dixon agrees | | 8 | 1/2 | 29/32 | 12.7 | 23.0 | 1/2, 9/16 | sheet; Dixon agrees | | 10 | 9/16 | 1-1/16 | 14.3 | 27.0 | 1/2, 9/16 | sheet; Dixon agrees | | 12 | 11/16 | 1-1/4 | 17.5 | 31.8 | 1/2, 9/16 | sheet; Dixon agrees | | 16 | 13/16 | 1-1/2 | 20.6 | 38.1 | 1/2, 9/16 | sheet; Dixon agrees | | 20 | 13/16 | 1-3/4 | 20.6 | 44.4 | 1/2, 9/16 | sheet; Dixon agrees | | 24 | 1-1/16 | 2 | 27.0 | 50.8 | 1/2, 9/16 | sheet; Dixon agrees | | 28 | 1-5/16 | 2-1/4 | 33.3 | 57.1 | 1/2, 9/16 | sheet; Dixon agrees | | 32 | 1-9/16 | 2-1/2 | 39.7 | 63.5 | 1/2, 9/16 | sheet; Dixon agrees | | 36 | 1-13/16 | 2-3/4 | 46.0 | 69.8 | 1/2, 9/16 | sheet; Dixon agrees | | 40 | 2-1/16 | 3 | 52.4 | 76.2 | 1/2, 9/16 | sheet; Dixon agrees | | 44 | 2-5/16 | 3-1/4 | 58.7 | 82.5 | 1/2, 9/16 | sheet; Dixon agrees | | 48 | 2-9/16 | 3-1/2 | 65.1 | 88.9 | 1/2, 9/16 | sheet; Dixon agrees | | 52 | 2-13/16 | 3-3/4 | 71.4 | 95.2 | 1/2, 9/16 | sheet; Dixon agrees | | 56 | 3-1/16 | 4 | 77.8 | 101.6 | 1/2, 9/16 | sheet; Dixon agrees | | 60 | 3-5/16 | 4-1/4 | 84.1 | 107.9 | — | Dixon only | | 64 | 3-9/16 | 4-1/2 | 90.5 | 114.3 | 1/2, 9/16 | sheet; Dixon agrees | | 72 | 1-7/8 | 5 | 47.6 | 127.0 | 1/2, 9/16 | sheet; Dixon agrees | | 80 | 2-1/2 | 5-1/2 | 63.5 | 139.7 | 1/2, 9/16 | sheet; Dixon agrees | | 88 | 3-1/8 | 6 | 79.4 | 152.4 | 1/2, 9/16 | sheet; Dixon agrees | | 96 | 3-5/8 | 6-1/2 | 92.1 | 165.1 | 1/2, 9/16 | sheet; Dixon agrees | | 104 | 4-1/8 | 7 | 104.8 | 177.8 | 1/2, 9/16 | sheet; Dixon agrees | | 128 | 5-5/8 | 8-1/2 | 142.9 | 215.9 | 9/16 (placement ambiguous in the sheet) | sheet; Dixon agrees | | 152 | 7-1/8 | 10 | 181.0 | 254.0 | 9/16 (placement ambiguous in the sheet) | sheet; Dixon agrees | | 188 | 9-3/8 | 12-1/4 | 238.1 | 311.1 | 9/16 (placement ambiguous in the sheet) | sheet; Dixon agrees | | 200 | 10-1/8 | 13 | 257.2 | 330.2 | — | Dixon only | | 212 | 10-7/8 | 13-3/4 | 276.2 | 349.2 | 9/16 (placement ambiguous in the sheet) | sheet; Dixon agrees | | 224 | 11-5/8 | 14-1/2 | 295.3 | 368.3 | — | Dixon only | | 236 | 12-3/8 | 15-1/4 | 314.3 | 387.3 | — | Dixon only | | 248 | 13-1/8 | 16 | 333.4 | 406.4 | — | Dixon only | | 312 | 17-1/8 | 20 | 435.0 | 508.0 | — | Dixon only | ## Where the files are - Worm drive clamp specification sheet (hosted by a university site): [SAE J1508 Type F and M worm-drive clamps: effective diameter min / max by SAE size, 5/16, 1/2 and 9/16 in band part families](https://wpsb2.jpmtestsite.web.illinois.edu/wp-content/uploads/2021/02/Worm-Drive-Clamp-Specification-Sheet.pdf) — web — Maker sheet, maker not identified in the extract; numbers only - Dixon Valve: [Worm gear clamps, style HS / HSS: hose OD min and max by size 6 to 312 (band width column ambiguous in the source)](https://dvcconbase.dixonvalve.com/en/media/148216) — web — Publisher's page; dimensions are facts - Zoro: [Hose clamp size chart (SAE sizes 4–64; differs from the maker sheets for several sizes, see notes)](https://www.zoro.com/resourcehub/hose-clamp-size-chart/) — web — Publisher's page; dimensions are facts - Unilog catalogue (worm gear clamps): [Hex slotted screw worm gear clamps by 'inside std. size' with min / max inches and 9/16 in band (differs from the maker sheets for several sizes)](https://assets.unilogcorp.com/267/ITEM/DOC/Au_ve_co_10221_Catalog.pdf) — web — Publisher's page; dimensions are facts - McMaster-Carr: [Hose clamps (free STEP/IGES per part, for your own design use; no redistribution)](https://www.mcmaster.com/products/hose-clamps/) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution (verify at link) ## Questions **What diameter does an SAE 10 hose clamp fit?** 9/16 to 1-1/16 in (14.3 to 27.0 mm computed) on the specification sheet and Dixon's table. **What does an SAE 16 hose clamp fit?** 13/16 to 1-1/2 in (20.6 to 38.1 mm computed). **What does SAE 6 mean on a hose clamp?** A size code for the SAE J1508 range 7/16 to 25/32 in on the specification sheet and Dixon's table; other charts print different numbers, so check the clamp's own marking. ## Fits with - [Stepless single-ear hose clamps: band width, thickness and size range (PG 167 series)](https://xemstudio.com/objects/stepless-ear-clamps/) - [Garden hose thread (GHT 3/4-11.5 NH) dimensions, hose sizes, BSP G3/4 and Gardena for comparison](https://xemstudio.com/objects/garden-hose-thread/) - [Silicone tube 1 × 3 to 10 × 14 mm (ID × OD)](https://xemstudio.com/objects/silicone-tube/) - [Tri-clamp × hose barb adapters (14MPHR style): ½ to 4 in clamp, ¼ to 4 in hose](https://xemstudio.com/objects/tri-clamp-hose-barb-adapters/)