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Hex bolts, Zinc plated grade 8 steel yellow, 5/16"-18 x 5/8"

Grade 8 hex bolt

Prod. # Length Each price Bag price Bulk price Price Buy
5230 5/8" $0.26 / ea $9.79 / 50 $81.50 / 500 $0.26 / ea $9.79 / 50 $81.50 / 500
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Product Images

Hex cap screw FT (Body) dimensions
Grade 8 (Head) dimensions
Product details
Bolt Depot product# 5230
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 Coarse
Diameter 5/16"
Thread count 18
Length 5/8"
Length tolerance +0.00" / -0.03"
Thread direction Right hand
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 0.195" - 0.211"
Width across the flats 1/2"
Fully threaded Yes
Dimensional standard ASME B18.2.1
Material standard SAE J429

Matching Products

Click on a product # for additional info

Prod. # Description Buy
2583
$0.11 / ea
$7.64 / 100
$61.10 / 1,000
3048
SAE flat washers, Zinc plated grade 8 steel yellow, 5/16"
SAE pattern is a tighter fit on the bolt and a smaller outside diameter.
$0.12 / ea
$7.88 / 100
$64.30 / 1,000
2676
Hex nylon insert lock nuts, Zinc plated grade 8 steel yellow, 5/16"-18
A hex nut with a nylon ring to resist loosening.
$0.20 / ea
$11.11 / 100
$95.70 / 1,000
3061
USS flat washers, Zinc plated grade 8 steel yellow, 5/16"
USS pattern is the most common type of flat washer.
$0.14 / ea
$9.40 / 100
$78.50 / 1,000
3038
Lock washers, Zinc plated grade 8 steel yellow, 5/16"
Split lock washers place tension against a nut after tightening, to help prevent loosening.
$0.06 / ea
$3.56 / 100
$31.80 / 1,000

See also

Metric hex bolt

Metric hex bolts

A bolt with a six sided head.