Hex threaded standoffs M4, M5, M6 and #4-40, #6-32: across flats per size, female-female and male-female lengths (Würth, Keystone)

length

11.5 mm

width

10.0 mm

height

55.0 mm

Notes

• Hex standoffs in these sizes are not standardized by an ISO / DIN number; the hex across flats is the maker's. Würth steel spacer studs: M4 comes in 7 mm hex (RS lists the 5 mm to 95 mm bodies) and 8 mm hex, M5 in 8 mm hex, M6 in 10 mm hex (M2.5 5 mm; M3 5 / 5.5 / 6 mm are on threaded-standoffs-metric). Keystone prints the hex 'O.D.': #4-40 .187 in and .250 in, #6-32 .250 in.
• How the Würth rows were read: the datasheet's row mapping is not tabular on the copy read, so each length was mapped from the order code (970 LL SS 1, LL the length in mm, SS the size code); the mapping agrees with the RS listings that were read: M4 5 mm body 7 mm hex (RS 2053051), M4 25 mm body 7 mm hex, M5 50 mm body 8 mm hex. The datasheet's own list stops at 20 mm for M4 and M5, while RS lists longer bodies of the same series, so the lengths shown are not the whole range.
• Male-female: RS prints stud length and hex for four Würth parts: M4 with an 8 mm stud (8 mm body and a 10 mm body, order code 971100471, both read at 7 mm hex; RS titles also show 12 and 45 mm bodies with an 8 mm stud), and M6 with a 10 mm stud, 45 mm body, 10 mm hex. The stud is the same thread as the female end. Keystone's two male-female datasheets (aluminum 8714 #4-40 and 8440 #8-32) print O.D. and a 'threaded length' but not the stud length against the overall length, so they are shown but not drawn. Keystone's catalogue page for #4-40 groups the hex rows by O.D. in a way that the copy read does not make fully clear; the two length sets are the best reading.
• Files: hex prisms at the published across-flats and lengths, 13 envelopes: female-female bodies with a plain through bore at the thread major diameter (M4 Ø4, M5 Ø5, M6 Ø6 mm; #4-40 Ø2.845, #6-32 Ø3.505 mm) and three male-female with a solid stud of the thread major diameter on a bored body. The thread, thread depth and the chamfers are not drawn (depth is only printed as 5 mm for the M4 8 mm listing and 10 mm for the M5 50 mm listing). No #8-32 female-female table was found (the Keystone 8-32 pages read are male-female datasheets); left out rather than inferred.

Hex threaded standoffs M4, M5, M6 and #4-40, #6-32: across flats per… size chart

Mating features

Drawn at the exact size. Open press, slide, run and socket features by your process's clearance (tolerances by process); leave designed gaps and clamp fits as drawn.

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Free files

★ Free files 13 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

Plain text: sheet.txt · JSON: /api/geometry?object=threaded-standoffs-hex-m4-m6-and-inch

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