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System of Measurement
System of Measurement
Inch
Metric
Thread Size
Thread Size
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5/16"-18
Thread Direction
Thread Direction
Right HandLeft Hand
Socket Head Profile
Socket Head Profile
StandardLow
Ultra-LowHigh
Fastener Strength Grade/Class
Fastener Strength
Grade/Class
Grade 2
Grade 5
Grade 8
Grade 9
Grade A
Grade B7
Grade B8
Grade B8M
Grade B16
Thread Spacing
Thread Spacing
Coarse
Fine
Thread Type
Thread Type
Inch
NPT
UNC
UNF
UNRC
Shoulder Diameter
Shoulder Diameter
default
5/16"
3/8"
1/2"
Specifications Met
Specifications Met
ASME
ASTM
DIN
EHEDG Certified
FDA Compliant
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Fed. Spec.
IFI
Mil. Spec.
NAS
SAE
UL