FASTON-type quick-connect tabs: 4.8 mm (.187) and 6.35 mm (.250) tab width and thickness (IEC 61210) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/faston-quick-connect-tabs/  (sheet CC BY 4.0)
Basis: TE 4.8 mm FASTON guide plus RS listings of TE parts and Omron terminal thickness; only labelled values used; 2.8 and 9.5 mm not read
Catalog version: 2026-10-20

Sizes: see table below
- FASTON is TE's name for the flat blade (tab) and receptacle quick-connect system; the same sizes are sold by many makers under 'quick disconnect', 'spade', 'blade' and 'push-on' names. TE's 4.8 mm guide cites IEC 61210 (VDE 613) for the tab. The 4.8 mm (.187) tab comes in 0.81 mm (0.032 in) and 0.51 mm (0.020 in) thickness; the 6.35 mm (.250) tab is listed at 0.81 and 0.83 mm.
- Metric 6.3 mm and imperial .250 in are the same tab family: TE prints 6.35 mm, one RS listing of a TE receptacle says 6.3 mm. Thickness 0.8 is a rounding of 0.81. Both are shown as read.
- Left out: the 2.8 mm (.110) and 9.5 mm (.375) tabs and the detent hole / dimple sizes: no readable labelled table was reached for them. The IEC 61210 text itself was not read (paywalled); use the tab and receptacle drawings of the part you buy.
- McMaster-Carr's quick-disconnect category and electrical quick-connects category (free STEP/IGES per part) are linked below.
- No files: a tab is a flat strip and the detent geometry is not published in the pages read.

tab size  tab width × thickness, mm  source  note
4.8 mm (.187 in)  4.8 × 0.81 (0.032 in) and 4.8 × 0.51 (0.020 in)  TE 4.8 mm FASTON receptacle quick reference guide (IEC 61210)  receptacle length 15 mm (0.59 in); wire 0.5 to 1.5 mm² (20-16 AWG) and 1.0 to 2.5 mm² (17-14 AWG)
4.8 mm (.187 in)  4.8 × 0.8 and 4.8 × 0.5  RS listings of TE PCB tabs  same two thicknesses as TE's guide, rounded
6.35 mm (.250 in)  6.35 × 0.81 and 6.35 × 0.83  RS listings of TE PCB tabs  two thicknesses seen on different parts; sources differ by 0.02 mm
6.3 mm  6.3 (thickness not stated)  RS listing of a TE grey uninsulated crimp receptacle  18-14 AWG; 'tab size 6.3 mm'
#187 (Omron V-series terminals)  t = 0.5  Omron V data sheet copies  thickness of the #187 switch terminal; width printed as '.187 in (4.7 mm)' in the spec list

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- TE Connectivity: 4.8 mm FASTON receptacles quick reference guide: tab 4.8 mm, 0.81 / 0.51 mm thick, IEC 61210 — web — Publisher's page; dimensions are facts — https://www.te.com/content/dam/te-com/documents/appliances/global/4.8mm-faston-receptacles-qrg.pdf
- RS (TE FASTON listing): FASTON .187 PCB tab 4.8 x 0.8 mm — web — Publisher's page; dimensions are facts — https://uk.rs-online.com/web/p/spade-connectors/1639917
- RS (TE FASTON listing): FASTON .187 PCB tab 4.8 x 0.5 mm — web — Publisher's page; dimensions are facts — https://uk.rs-online.com/web/p/spade-connectors/6805927P
- RS (TE FASTON listing): FASTON .250 PCB tab 6.35 x 0.81 mm — web — Publisher's page; dimensions are facts — https://uk.rs-online.com/web/p/spade-connectors/7188047P
- RS (TE FASTON listing): FASTON .250 PCB tab 6.35 x 0.83 mm — web — Publisher's page; dimensions are facts — https://uk.rs-online.com/web/p/spade-connectors/6831500
- RS (TE FASTON listing): FASTON grey uninsulated male crimp tab, 6.3 mm tab size, 18 to 14 AWG — web — Publisher's page; dimensions are facts — https://uk.rs-online.com/web/p/spade-connectors/0795384
- Omron (leocom copy): V series data sheet: #187 quick-connect, t = 0.5, 3.1 mounting holes — web — Publisher's page; dimensions are facts — https://lh.pe/file/v_series.pdf
- McMaster-Carr: Quick-disconnect terminals (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/terminals/ul-file-number~e79133
- McMaster-Carr: Electrical quick connects (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://mcmaster.com/products/electrical-quick-connects

No true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.
API: https://xemstudio.com/api/geometry?object=faston-quick-connect-tabs