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Description
GB/T 69-2000 - Counterunk slotted raised head screws(common head style)
Bill of material
Screws GB/T 69 M4x35
IDNR
Ident number
D
Nominal thread diameter
mm
D3
Nominal core diameter
mm
P
Pitch of bolt
mm
L
Nominal length
mm
A
Distance from the last full form thread to the bearing face
mm
B
Thread length
mm
DK
Diameter of the head
mm
F
Height of the raised
mm
K
Head height
mm
N
Width of slot
mm
R
Transition radius under head
mm
RT
Radius of the raised portion of a head
mm
T
Depth of the driving feature
mm
X
Length of the thread run-out
mm