4 x 12 P.H. S.Steel Machine Screw 1-500x
Machine Screws
A machine screw is a screw or bolt with a flat point. Available in a variety of drive types and heads, they fit a wide variety of applications. Often driven into tapped holes. Used with nuts and washers, also known as “stove bolts” or “stovers”.
Diameter
(d)
Pitch
 
dk
 
k
 
Drive
 
M1.6
0.35
3.20-2.90
1.42-1.16
#0
M2
0.40
4.00-3.70
1.72-1.46
#0
M2.5
0.45
5.00-4.70
2.12-1.88
#1
M4
0.70
M3
0.50
6.00-5.30
2.52-2.26
#1
#2
#2
3.25-2.92
2.82-2.46
8.00-7.64
7.00-6.64
0.60
M3.5
M8
1.25
M5
0.80
#2
3.95-3.62
10.00-9.14
M6
1.00
12.00-11.57
16.00-15.57
4.75-4.30
6.15-5.70
#3
#4
M10
1.50
20.00-19.48
7.68-7.14
#4
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