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ISO 2936, 2001 hex key s = 1.5 mm across flats, corners rounded to e max 1.68 mm
ISO 2936:2001 hex key s = 1.5 mm across flats, corners rounded to e max 1.68 mm, long arm l1 = 46.5 mm, short arm l2 = 15.5 mm (overall extents to the outer face of the other arm); bend centre-line radius 3 mm is an Xem choice
Exact dimensions. True size, no tolerance added. Threads are plain cylinders at the major diameter.
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Hex keys (Allen keys): ISO 2936 metric 0.7–36 mm and ASME B18.3 inch .050–7/8 in: across flats, across corners, long and short arm + 31 key models: every size, notes, mating features and sources. How long are hex keys, and what are the across-flats and across-corners sizes of a 2, 3, 4, 5, 6, 8, 10 mm or 1/8, 3/16, 1/4 in Allen key?
Other sizes
- ISO 2936, 2001 hex key s = 2 mm across flats, corners rounded to e max 2.25 mm
- ISO 2936, 2001 hex key s = 2.5 mm across flats, corners rounded to e max 2.82 mm
- ISO 2936, 2001 hex key s = 3 mm across flats, corners rounded to e max 3.39 mm
- ISO 2936, 2001 hex key s = 4 mm across flats, corners rounded to e max 4.53 mm
- ISO 2936, 2001 hex key s = 5 mm across flats, corners rounded to e max 5.67 mm
- ISO 2936, 2001 hex key s = 6 mm across flats, corners rounded to e max 6.81 mm
- ISO 2936, 2001 hex key s = 8 mm across flats, corners rounded to e max 9.09 mm
- ISO 2936, 2001 hex key s = 10 mm across flats, corners rounded to e max 11.37 mm
- ISO 2936, 2001 hex key s = 12 mm across flats, corners rounded to e max 13.65 mm
- ISO 2936, 2001 hex key s = 14 mm across flats, corners rounded to e max 15.93 mm
- ISO 2936, 2001 hex key s = 17 mm across flats, corners rounded to e max 19.35 mm
- ISO 2936, 2001 hex key s = 19 mm across flats, corners rounded to e max 21.63 mm
- hexkey-asme-b18-3-050in
- hexkey-asme-b18-3-1-16in
- hexkey-asme-b18-3-5-64in
- hexkey-asme-b18-3-3-32in
- hexkey-asme-b18-3-7-64in
- hexkey-asme-b18-3-1-8in
- hexkey-asme-b18-3-9-64in
- hexkey-asme-b18-3-5-32in
- hexkey-asme-b18-3-3-16in
- hexkey-asme-b18-3-7-32in
- hexkey-asme-b18-3-1-4in
- hexkey-asme-b18-3-5-16in
- hexkey-asme-b18-3-3-8in
- hexkey-asme-b18-3-7-16in
- hexkey-asme-b18-3-1-2in
- hexkey-asme-b18-3-9-16in
- hexkey-asme-b18-3-5-8in
- hexkey-asme-b18-3-3-4in