CC-1S801222B-DS-3-8-16 revA
'?) CommunityCAD Size datasheet - 3/8-16 x 1/4-20
ISO 1222 3/8-16 x 1/4-20 reducer bushing
Size datasheet: this size's values with their levels, conventions and sources.
Part key iso1222-b-3-8-16 Files 1 STEP AP214 (simplified)
3/8-16 x 1/4- 20, front view, 3:1 3/8-16 x 1/4-20, view from above, 3:1
Dimension
Pi
D1
n
m
Outside pitch, 3/8-16 1.588 L2
Outside major diameter (Table 2, 3/8-16) 9.312 9.132-9.492
Outside minor diameter (Table 2, 3/8-16) 7.806
Length = 3/8-16 hole depth h (Fig. 1 a)
Iv
5.5*
End chamfer length (Fig. 1 b)
Inside pitch, 1/4-20 1.270 a
IA
Inside major diameter (Table 1, 1/4-20) 6.350 Inside minor diameter (Table 1, 1/4- 20) 4.975, 1/4- 20 full-thread depth (Fig. 1 a) > Gk Mouth countersink depth (Fig. 1 a) S$ 1x lo- 1 Countersink at the face (90°, house) 6.975 house Slot width (0.16 d, house) 1.49 house Slot depth (H / 4, house) 1.375 house
Modeled value: nominal, else the midpoint of min-max. s / =: only that limit is given, modeled at it. * amber: one source (LO). house: a stated house rule. Level - independent sources.
ISO 1222:2010
Page 1/2
Reducer bushing - 3/8-16 x 1/4-20 - Dimensions in mm - CC-BY 4.0, IronPixel Labs LLC spec 49d92ed7fa00ee66665c3260ee36be633a83c3a8
Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.
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CC-1S801222B-DS-3-8-16 revA Size datasheet - 3/8-16 x 1/4-20
'?) CommunityCAD
Conventions
¢ Edition and threads: ISO 1222:2010 from its complete free preview (ADR 0059): the 3/8-16 bolt thread outside (Table 2) and the 1/4-20 nut thread inside (Table 1), at their band midpoints (else the basic). Simplified level: a plain cylinder at d and a plain bore at D1.
« Length and bore: The length is the 3/8-16 socket's hole depth h, so the bushing fills a Figure 1 socket; the 1/4- 20 thread runs through it, which holds the 1/4- 20 thread depth t and hole depth h.
e Ends: The lower outside end chamfered from d to d1 over z, as the bolt end, its end face at Table 2's d1 max (basic + es), not the basic in the table. The 1/4-20 mouth countersunk 90° included to the depth e, at Figure 1's limit. The bore's lower edge sharp.
« Slot, markings, material: A straight screwdriver slot along X, 0.16 d wide and a quarter of the length deep. No markings. Brass: render material only.
Sources Source Publisher Retrieved sha256 iso1222-2010-sample ISO (preview published by iTeh Standards) 2026-10-31 ad728f67a8e8 (kept outside the repo)
iso1222-2010-sample-figures ISO (preview published by iTeh Standards) 2026-10-31 ad728f67a8e8 (kept outside the repo)
The whole series (verification map, drawings): CC-ISO1222B-Ds.
ISO 1222:2010 Page 2/2 Reducer bushing - 3/8-16 x 1/4-20 - Dimensions in mm - CC-BY 4.0, IronPixel Labs LLC spec 49d92ed7fa00ee66665c3260ee36be633a83c3a8
Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.