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Hex bolts, Zinc plated steel, 5/16"-18 x 3"

Hex bolt

Prod. # Length Each price Bag price Bulk price Price Buy
202 3" $0.30 / ea $20.84 / 100 $176.00 / 1,000 $0.30 / ea $20.84 / 100 $176.00 / 1,000
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Product Images

Hex cap screw Varies (Body) dimensions
Hex bolt (Head) dimensions
Product details
Bolt Depot product# 202
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.
Thread density Coarse
Diameter 5/16"
Thread count 18
Length 3"
Length tolerance +0.04" / -0.06"
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 No
Thread length Minimum 7/8"
Dimensional standard ASME B18.2.1

Matching Products

Click on a product # for additional info

Prod. # Description Buy
2649
Hex nuts, Zinc plated steel, 5/16"-18
A standard six sided nut.
$0.09 / ea
$6.25 / 100
$50.00 / 1,000
2977
SAE flat washers, Zinc plated steel, 5/16"
SAE pattern is a tighter fit on the bolt and a smaller outside diameter.
$0.05 / ea
$3.20 / 100
$27.20 / 1,000
2625
Hex nylon insert lock nuts, Zinc plated steel, 5/16"-18
A hex nut with a nylon ring to resist loosening.
$0.14 / ea
$6.99 / 100
$60.00 / 1,000
2995
USS flat washers, Zinc plated steel, 5/16"
USS pattern is the most common type of flat washer.
$0.06 / ea
$4.20 / 100
$35.70 / 1,000
3025
Lock washers, Zinc plated steel, 5/16"
Split lock washers place tension against a nut after tightening, to help prevent loosening.
$0.08 / ea
$2.53 / 100
$21.70 / 1,000

See also

Metric hex bolt

Metric hex bolts

A bolt with a six sided head.

Full thread tap bolt

Tap bolts, Zinc plated steel, 5/16"-18

A full thread bolt with a six sided head.