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System of Measurement
Inch
Metric
Thread Size
6-32
8-32
10-24
10-32
1/4"
-20
1/4"
-28
5/16"
-18
5/16"
-24
3/8"
-16
1/2"
-13
5/8"
-11
M3
M4
M5
M6
M8
M10
M12
Length
1/4"
3/8"
0.46"
0.48"
1/2"
0.52"
0.54"
0.56"
5/8"
3/4"
7/8"
0.95"
1"
1.1"
1
1/4"
1
1/2"
2"
2
1/2"
3"
8 mm
10 mm
12 mm
16 mm
20 mm
25 mm
30 mm
35 mm
40 mm
50 mm
60 mm
80 mm
Material
Acetal
Brass
Iron
Stainless Steel
Steel
Grip Style
Spade Head
Two Arm
Wing
Fastener Head Type
Flanged
Thumb
Head Diameter
3/8"
0.4"
7/16"
1/2"
0.53"
0.61"
5/8"
0.68"
3/4"
7/8"
8 mm
11 mm
13 mm
16 mm
20 mm
23 mm
Threading
Fully Threaded
Partially Threaded
Head Width
5/16"
23/64"
3/8"
13/32"
7/16"
15/32"
33/64"
35/64"
9/16"
11/16"
23/32"
49/64"
13/16"
7/8"
0.88"
57/64"
1"
1
1/64"
Thread Pitch
0.5 mm
0.7 mm
0.8 mm
1 mm
1.25 mm
1.5 mm
1.75 mm
Head Height
1/4"
19/64"
5/16"
11/32"
3/8"
25/64"
13/32"
0.43"
7/16"
0.44"
29/64"
15/32"
1/2"
35/64"
19/32"
39/64"
5/8"
43/64"
11/16"
23/32"
3/4"
13/16"
7/8"
15/16"
1"
1
3/16"
8.6 mm
10.5 mm
11.5 mm
13 mm
14 mm
15.5 mm
16 mm
17 mm
18 mm
19 mm
20 mm
21 mm
24 mm
25 mm
33 mm
40 mm
Tip Type
Flat
Soft
Thread Type
Metric
UNC
UNF
Thread Spacing
Coarse
Fine
Thread Fit
Metric Class 6g
Metric Class 8g
Unified Standard Class 2A
Unified Standard Class 3A
Thread Length
0.875"
1"
Nut Type
Clip On
Press Fit
Rivet Mount
Export Control Classification Number (ECCN)
EAR99
U.S.–Mexico–Canada Agreement (USMCA) Qualifying
Yes
No
Tensile Strength
40,000 psi
50,000 psi
Not Rated
DFARS Specialty Metals
Compliant
Exempt
Not Compliant
RoHS
Compliant
Not Compliant
REACH
Compliant
Not Compliant
Hardness
Rockwell B40
Rockwell B55
Rockwell B71
Not Rated
Performance
Chemical Resistant
Conductive
Corrosion Resistant
Nonmagnetic
Nonmarring
Hole Diameter
0.312"
0.512"
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458 Products
...
Thumb Screws
Thumb Screws
Stainless Steel Wing Thumb Screws
Corrosion resistant with a grip-friendly design
65 products
Steel and Iron Wing Thumb Screws
A wing shape for more leverage than spade head thumb screws
68 products
Two-Arm Plastic-Head Thumb Screws
Flat, evenly spaced arms give your fingers extra leverage to twist
27 products
Steel and Iron Spade-Head Thumb Screws
Our most popular spade-head thumb screws, with a flat head for extra twisting leverage
87 products
Stainless Steel Spade-Head Thumb Screws
Fasten in wet environments, with a coin-like head for extra leverage
34 products
Steel Flanged Spade-Head Thumb Screws
Distribute pressure evenly when twisting into thin and soft materials
67 products
Stainless Steel Flanged Spade-Head Thumb Screws
Distribute pressure evenly in thin and soft materials without the risk of corrosion
30 products
Sanitary Thumb Screws
Withstand corrosion in sanitary environments that experience frequent washdowns
15 products
Brass Spade-Head Thumb Screws
Conductive, nonmagnetic, and shiny, with a flat head for extra leverage
18 products
Steel Spade-Head Soft-Tip Thumb Screws
The soft tip won't mar or deform components such as clamps and adapters
14 products
Other Products
Captive Panel Screws
Secure panels and enclosures while still having access to them
33 products
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)