Metric Size, Nylon Plastic
Hollow Knurled Knobs
With Stainless Steel Threaded Stud
GN 421-NI
GN 421-NI

RoHS Compliant
GN 421-NI
GN 421-NI
Specification
Information
Knob body: Black nylon plastic, smooth, glossy finish
Threaded stud: Stainless steel, molded-in
European standard 1.4305
(American standard 303 series)

Because the insert protrudes from the bottom of this knurled screw, the plastic will not chip when clamping. An economical choice for corrosion-free environment.
Maximum heat resistance of nylon plastic: 110°C (230°F).

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Dimensions in:

millimeters
(inches)

Part
Number
d4
d1
Thread
l
Stud Length
d2
d3
h
k
19
(.75)
M5 x .8
10
9
(.35)
12
(.47)
14
(.55)
8
(.31)
15
25
24
(.94)
M6 x 1.0
16
11
(.43)
14
(.55)
16.5
(.65)
9.5
(.37)
20
30
30
(1.18)
M8 x 1.25
20
13
(.51)
16
(.63)
19.5
(.77)
11
(.43)
25
30