ISO 1222 camera screw, 1/4-20
Size drawing - 1/4-20 values on the views - L = 10, house length (owner, #438) - enlarged 5:1
Sym. | Dimensiot 1/4-20
Pitch (25.4 / tpi) 1.270
6.167 Thread di Table 2) dk = 13.567 house REESE) CLEMO G) 6.012-6.322
5.426 5.355-5.497
Thread pitch diameter (Table 2)
Thread minor diameter (Table 2) 4.975 k = 3.7 house Protrusion from the bearing face (Fig. 1b)
Thread length from the end (Fig. 1b)
End chamfer length (Fig. 1b) dn = 4.287 house “vs
Bearing face recess limit (clause 4)
L = 10 house
Head diameter (2.2 d, house)
Head height (0.6 d, house) d = 6.167 6.012-6.322
Slot width (0.16 d, house)
Hex socket across flats (0.5 d, house)
end face d1 = 4.975 |
Captive neck (0.9 d1, house)
D-ring wire (0.12 d, house)
Source levels
Main value = the modeled value (nominal, else the middle of min-max).
Grey under a value = its min-max, where the source gives both.
w = 0.74 house (D-ring) < / = = the source gives only that limit, modeled at it. ref = reference.
L2 = the standard itself (or its complete free preview, or the maker's drawing).
L1 = two or more independent sources agree: the release gate.
LO = one source only: printed amber and marked *.
c = a source value was corrected; the datasheet says how.
House convention = a detail no source dimensions, drawn to a stated house rule. This size's values: L2 8 - LO 6.
Notes
Thread diameters at the band midpoint, else the basic (designation nominals, ADR 0014). Figure 1 values are figure reads of the preview: one lineage (LO), modeled at the limit. dk, k, n, s, dn, w: illustrative house rule (#1120 item 2 B), not any maker's design.
dr limits a recess in the mating face; not a feature of the screw.
L: house length (owner, #438), the whole mm the makers' stated lengths round to.
1-4 n = 0.987 house
TITLE
'? CommunityCAD Size drawing, 1/4-20
STANDARDS FOLLOWED FAMILY / DETAIL
ISO 1222:2010 Camera screw - 1/4-20
SHEET REV SCALE PROJECTION UNITS CC-1801222-SZ-1-4-20 A 5:11 € Dimensions in mm
SPEC VERSION LICENSE PAGE 946d39588085996aee8F621a618103eb3a8F37bd CC-BY 4.0 IronPixel Labs LLC 1/1
Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.