Knurling screw has a long cylinder head with straight knurling on surface for easy operation by hand it can enhance the friction and easy to operation by hand , Slot drive in the centre of the head that can be driven by a sloted screwdriver bit .
Technical Data
Material
Brass
Physical Properties
Hardness ( HV )
15
Yield Strength ( Mpa )
150
Elongation ( % )
55
Tensile Strength ( Mpa )
210
Torque
5
Reduction Area ( % )
36
Specification
Thread diameter
M3
Thread Length
8
Pitch
0.7
Head Diameter
5.0
Head Height
6
Drive
Slot
Optional ANSI Threads
d
P
L
#0
40
3-5
#1
32
4-8
#2
32
4-10
#3
28
5-12
#4
24
5-15
#5
20
8-20
#6
18
8-25
#7
16
8-30
#8
15
10-30
#10
12
10-60
1/4
14
15-80
5/16
12
20-100
7/16
10
30-200
Finish
Type
Thickness
Salty Spray Hours
RoHS / REACH
Nickel
5
12
RoHS
Product Features
1 . Easy to operation .
Knurling screws with straight knurling head that provides easy operation by hand .
2 . Corrosion resistance
3 . Standard threads
4 . Quick installation
Thumb screws can be installed by hand without extra tools .
5 . Easy to adjust screws lengths
6 . No burrs scratch
Applications
Knurling screws are normally used for electronics or offical devices like Computer , watch and TV etc .
A. We are able to finish up to 2000 tons raw material every year , generally , one full 20 feet container ( about 20 tons) can be done in 20- 25 days .
Q.How long I can get samples for approval before placing order ?
A. Just in one week for new samples that need to be done in new tools , and we can deliver samples within 24 hours for exsiting samples once received your request .
Q.What are your popular payement menthods ?
A. T/T is our prior choose for all , of course , we are also accept L/C , Westunion , paypall .
Q. What products you produce ?
A. We are proudce different hardware spare parts , stamping part , plastic injeciton molding parts and fasteners like screws , bolt , nuts , pins , rivets and spacers washers etc
