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Home
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Cutting Tools
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Taps and Dies
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Nitro Spiral Flute Tap
>
5/16-18 NITRO SPIRAL FLUTE TAP
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5/16-18 NITRO SPIRAL FLUTE TAP
Item #:
TAPS031-18SFN
5/16-18 NITRO SPIRAL FLUTE TAP
$40.55782/EA
Quantity
Price
Quantity
Price
1
$40.55782/ EA
Qty
In Stock
Add To Cart
Technical Data
Product Specification
Dimensional Specifications
Tap Drill Chart
Product Specification
Size
5/16
Tap Type
Spiral Flute
Bit Decimal
0.3125
Overall Length
2 23/32
Thread Length
1.1250
Material
High Speed Steel
Origin
Domestic
Weight
0.051,
Dimensional Specifications
Dimensional Specifications
Spiral Flute Tap
Tap Size
Thread
Overall
Length
Square
Size
Number
of Flutes
Tap/Drill
Size (75%)
6
32
2
0.1100
3
#36
8
32
2 1/8
0.1310
3
#29
10
24
2 3/8
0.1520
3
#25
10
32
2 3/8
0.1520
3
#21
1/4
20
2 1/2
0.1910
3
#7
1/4
28
2 1/2
0.1910
3
#3
5/16
18
2 23/32
0.2380
3
F
5/16
24
2 23/32
0.2380
3
I
3/8
16
2 15/16
0.2860
3
5/16
3/8
24
2 15/16
0.2860
3
Q
7/16
14
3 5/32
0.2420
3
U
7/16
20
3 5/32
0.2420
3
W
1/2
13
3 3/8
0.2750
3
27/64
1/2
20
3 3/8
0.2750
3
29/64
5/8
11
3 13/16
0.3600
4
17/32
5/8
18
3 13/16
0.3600
4
37/64
3/4
10
4 1/4
0.4420
4
21/32
3/4
16
4 1/4
0.4420
4
11/16
All dimensions are in inches.
Tap Drill Chart
Tap Drill Chart
Tap Size
Drill Size
Probable
% Thread
M3-0.5
40
70-79
5-40
38
65-72
5-44
37
63-71
M3.5-0.6
33
72-81
6-32
36
71-78
6-40
33
69-77
M4-0.7
3.25 mm
74-82
8-32
29
62-69
8-36
29
70-78
10-24
25
69-75
10-32
21
68-76
M5-0.8
4.2 mm
69-77
12-24
16
66-72
12-28
15
70-78
M6-1.0
10
76-84
1/4-20
7
70-75
1/4-28
3
72-80
5/16-18
F
72-77
5/16-24
I
67-75
M8-1.25
6.7 mm
74-80
3/8-16
5/16
72-77
3/8-24
Q
71-79
M10-1.50
8.4 mm
76-82
7/16-14
U
70-75
7/16-20
25/64
65-72
M12-1.75
13/32
69-74
1/2-13
27/64
73-78
1/2-20
29/64
65-72
Tap Size
Drill Size
Probable
% Thread
M14-2.0
15/32
76-81
9/16-12
31/64
68-72
9/16-18
33/64
58-65
5/8-11
17/32
75-79
5/8-18
37/64
58-65
M16-2.0
35/64
76-81
3/4-10
21/32
68-72
3/4-16
11/16
71-77
M20-2.5
11/16
74-78
7/8-9
49/64
72-76
7/8-14
13/16
62-67
M24-3.0
53/64
72-76
1-8
7/8
73-77
1-12
59/64
67-72
1-14
15/16
61-67
1-1/8-7
63/64
72-76
1-1/8-8
1
76
1-1/8-12
1-3/16
66-72
M30-3.5
1-3/64
75
1-1/4-7
1-7/64
76
1-1/4-8
1-1/8
76
1-1/4-12
1-11/64
72
1-3/8-6
1-7/32
72
1-3/8-12
1-19/64
72
M36-4.0
1-1/4
82
1-1/2-6
1-11/32
72
1-1/2-8
1-3/8
76
1-1/2-12
1-27/64
72
NPT Tap Size
Taper Pipe
Drill Size
Straight Pipe
Drill Size
1/8-27
R
11/32
1/4-18
7/16
7/16
3/8-18
37/64
37/64
1/2-14
45/64
23/32
3/4-14
59/64
59/64
1-11.5
1-5/32
1-5/32
1-1/4-11.5
1-31/64
1-1/2
1-1/2-11.5
1-47/64
1-3/4
2-11.5
2-7/32
2-7/32