Hex bolts, Zinc plated grade 8 steel yellow, 5/16"-18 x 3-1/2"

Grade 8 hex bolt

Prod. # Length Each price Bag price Bulk price Price Buy
607 3-1/2" $0.86 / ea $14.13 / 25 $118.00 / 250 $0.86 / ea $14.13 / 25 $118.00 / 250
Cost of all entered products: $0.00
Add to Cart

Product Images

Hex cap screw Varies (Body) dimensions
Grade 8 (Head) dimensions
Product details
Bolt Depot product# 607
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 low carbon steel for general use, either Grade 2 or A307A.
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 3-1/2"
Thread direction Right hand
Length tolerance +0.04" / -0.06"
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 No
Thread length Minimum 7/8"
Dimensional standard ASME B18.2.1
Material standard SAE J429

Matching Products

Click on a product # for additional info

Prod. # Description Buy
2583
Add
$0.08 / ea
$4.05 / 100
$34.60 / 1000
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.
Add
$0.12 / ea
$7.88 / 100
$70.00 / 1000
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.
Add
$0.20 / ea
$11.11 / 100
$95.70 / 1000
3061
USS flat washers, Zinc plated grade 8 steel yellow, 5/16"
USS pattern is the most common type of flat washer.
Add
$0.15 / ea
$8.74 / 100
$73.60 / 1000
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.
Add
$0.06 / ea
$3.56 / 100
$31.80 / 1000

See also

Metric hex bolt

Metric hex bolts

A bolt with a six sided head.