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Hex bolts
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Hex bolts
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Zinc plated grade 8 steel yellow
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Fine thread
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9/16"-18
Hex bolts, Zinc plated grade 8 steel yellow, 9/16"-18 x 5-1/2"
Prod. #
Length
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4279
5-1/2"
$8.18
/ ea
$71.49
/ 10
$631.00
/ 100
$8.18
/ ea
$71.49
/ 10
$631.00
/ 100
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Product details
Bolt Depot product#
4279
Units
US
Category
Hex bolts
Bolts with hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts.
Subcategory
Hex bolts
A bolt with a six sided head.
Material
Steel
A tempered medium carbon steel.
Plating
Zinc
Zinc plated for moderate corrosion resistance.
Grade
Grade 8
Grade 8 is stronger than grade 5, and is commonly found in high strength automotive applications.
Color
Yellow
Thread density
Fine
Diameter
9/16"
Thread count
18
Length
5-1/2"
Thread direction
Right hand
Length tolerance
+0.10" / -0.10"
Head style
Hex
Hex heads are six sided for use with a wrench.
Drive type
External hex
A hexagonal head for use with a wrench.
Head height
0.348"
-
0.371"
Width across the flats
13/16"
Fully threaded
No
Thread length
Minimum
1-3/8"
Dimensional standard
ASME B18.2.1
Material standard
SAE J429
Additional information
US Hex bolt sizes
US bolt thread length table
Head/Wrench size table
US hex bolt recommended torque
Matching Products
Click on a product # for additional info
Prod. #
Description
Buy
2601
Hex nuts, Zinc plated grade 8 steel yellow, 9/16"-18
A standard six sided nut.
Add
$0.78
/ ea
$13.18
/
25
$116.00
/
250
3052
SAE flat washers, Zinc plated grade 8 steel yellow, 9/16"
SAE pattern is a tighter fit on the bolt and a smaller outside diameter.
Add
$0.60
/ ea
$9.94
/
25
$81.10
/
250
7185
Hex nylon insert lock nuts, Zinc plated grade 8 steel yellow, 9/16"-18
A hex nut with a nylon ring to resist loosening.
Add
$0.93
/ ea
$17.50
/
25
$150.00
/
250
3065
USS flat washers, Zinc plated grade 8 steel yellow, 9/16"
USS pattern is the most common type of flat washer.
Add
$1.01
/ ea
$16.89
/
25
$141.00
/
250
3042
Lock washers, Zinc plated grade 8 steel yellow, 9/16"
Split lock washers place tension against a nut after tightening, to help prevent loosening.
Add
$0.21
/ ea
$3.73
/
25
$33.50
/
250
Add All Entered
See also
Metric hex bolts
A bolt with a six sided head.