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Military Specification
Federal Specification
Military Specification
NAS
System of Measurement
Inch
Metric
Thread Size
0-80
2-56
4-40
6-32
8-32
10-24
10-32
1/4"
-20
1/4"
-28
5/16"
-18
5/16"
-24
3/8"
-16
3/8"
-24
1/2"
-13
M3
M4
M5
M6
Length
1/8"
3/16"
1/4"
5/16"
3/8"
7/16"
1/2"
5/8"
3/4"
7/8"
1"
1
1/4"
1
1/2"
1
3/4"
2"
2
1/4"
2
1/2"
2
3/4"
3"
6 mm
8 mm
10 mm
12 mm
16 mm
20 mm
Material
Alloy Steel
Stainless Steel
Specifications Met
ASME B18.3
ASTM Standard
SAE AMS5737
Fastener Head Type
Flat
Rounded
Socket
Drive Style
Hex
Socket Head Profile
Standard
Threading
Fully Threaded
Partially Threaded
DFARS Specialty Metals
Compliant
Exempt
Not Compliant
Tensile Strength
70,000 psi to 99,999 psi
100,000 psi or greater
Head Diameter
0.096"
0.14"
0.164"
0.183"
0.213"
0.226"
0.255"
0.262"
0.27"
0.307"
0.312"
5/16"
0.359"
0.361"
3/8"
0.411"
0.437"
15/32"
0.531"
0.547"
9/16"
0.656"
3/4"
0.781"
0.875"
5.7 mm
7.6 mm
9.5 mm
10.5 mm
Finish
Black Oxide
Cadmium Plated
Drive Size
0.050"
1/16"
5/64"
3/32"
7/64"
1/8"
9/64"
5/32"
3/16"
7/32"
1/4"
5/16"
3/8"
2 mm
2.5 mm
3 mm
4 mm
Thread Fit
Metric Class 6g
Unified Standard Class 3A
Thread Direction
Right Hand
Thread Type
Metric
UNC
UNF
UNRC
UNRF
Head Height
0.046"
0.059"
0.06"
0.073"
0.083"
0.086"
0.087"
0.097"
0.101"
0.112"
0.127"
0.132"
0.138"
0.161"
0.164"
0.166"
0.19"
0.198"
0.199"
0.234"
1/4"
0.265"
5/16"
3/8"
1/2"
1.65 mm
2.2 mm
2.75 mm
3.3 mm
Countersink Angle
82°
RoHS
Compliant
Not Compliant
REACH
Compliant
Not Compliant
U.S.–Mexico–Canada Agreement (USMCA) Qualifying
Yes
No
Export Control Classification Number (ECCN)
EAR99
Performance
Chemical Resistant
Corrosion Resistant
High Strength
High Temperature
Vibration Resistant
Thread Spacing
Coarse
Fine
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505 Products
Socket Head Screws
Stainless Steel Socket Head Screws
Won't rust or corrode when exposed to moisture and chemicals
206 products
Steel Socket Head Screws
The standard for high-strength fastening
85 products
Other Products
Flat Head Screws
Fit in countersunk holes for a flush finish that won't snag on surrounding parts
85 products
Rounded Head Screws
Sit just above the surface for a low-profile finish and hold tighter than flat head screws
129 products
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)