ISO 7050 ST6.3×13 Countersunk Tapping Screw7 combinations of material, property class and finish supplied in this size.

Standard
ISO 7050 · 2011
Thread
ST6.3 · pitch 1.8 mm
Length under head
13 mm · 12.2–13.8 mm to ISO 7050 product grade A
Head height
3.15 mm
Weight
3.14 kg per 1 000 pieces · Theoretical, from nominal geometry — confirm before ordering318 pieces per kg
Also named
GB/T 846

Supplied to ISO 7050 ST6.3×13 — the figures shown here match GB/T 846. All 2 record the same figures in this size. Compared on the columns shown here only — product grade, tolerance class, length range, material and property-class references are set by each standard separately. We produce to whichever one your drawing calls out. Compare all sizes →

90°Recess NumberLkdkdPy
View in 3D
ISO 7050 dimension tablePDF · every size

Order ST6.3×13

Set a quantity on as many rows as you need. Not listed? We make to your drawing — send it with the enquiry.

Every standard listed here records the same figures at ST6.3×13. Your choice is carried into the inquiry and the quotation.

MaterialClassFinishQuantityNet weight
Carbon SteelZinc Plated
Carbon SteelDacromet
Carbon SteelRuspert
Carbon SteelPhosphate
Carbon SteelPlain
Stainless SteelPlain
Stainless SteelPassivated

Dimensions at ST6.3×13

one row per dimension
DimensionISO 7050CurrentGB/T 846Current
Thread PitchP (mm)1.81.8
Thread Runout (max)a (mm)3.63.6
Theoretical Head Diameter (max)dk (mm)12.612.6
Head Diameterdk (mm)11.311.3
Head Diameter (min)dk min (mm)10.910.9
Nominal Head Heightk (mm)3.153.15
Radius (max)r (mm)2.42.4
Recess Number33
Type H Recess Width (ref.)m (mm)6.86.8
Type H Penetration (max)t (mm)3.53.5
Type H Penetration (min)t (mm)33
Type Z / Socket Width (ref.)m/A (mm)6.66.6
Type Z Penetration (max)t (mm)3.453.45
Type Z Penetration (min)t (mm)33
Point Length — C (ref.)y (mm)66
Point Length — F (ref.)y (mm)3.63.6
Point Length — R (ref.)y (mm)55

Plating adds thickness — state the finish on the order.

Other lengths in ST6.3

All sizes →
Sizekg per 1 000 pieces
ST6.3×133.14this page
ST6.3×163.63open
ST6.3×194.12open
ST6.3×224.60open
ST6.3×255.09open

ST6.3 x 16ST6.3 x 19ST6.3 x 22ST6.3 x 25ST6.3 x 32ST6.3 x 38

Quote ISO 7050 ST6.3×13 Countersunk Tapping Screw

Standard, size, material, finish, quantity and destination are enough to begin.