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Prod. # Length Each price Bag price Bulk price Price Buy
18281 3-1/2" $0.81 / ea $28.91 / 50 $246.00 / 500 $0.81 / ea $28.91 / 50 $246.00 / 500
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Carriage bolt full thread
Product details
Bolt Depot product# 18281
Units US
Category Carriage bolts & Plow bolts
Bolts with no drive and machine threads for use with a nut.
Head style Carriage
Carriage heads are large smooth and domed with no drive.
Neck style Square
Material Steel
A tempered medium carbon steel.
Plating Zinc
Zinc plated for moderate corrosion resistance.
Grade Grade 5
Grade 5 falls between grade 2 and grade 8 in strength, and is commonly found in automotive applications.
Thread density Coarse
Diameter 5/16"
Thread count 18
Length 3-1/2"
Dimensional standard ASME B18.5
Length tolerance +0.04" / -0.06"
Thread direction Right hand
Head diameter 0.688" - 0.719"
Head height 0.156" - 0.176"
Square width 0.307" - 0.324"
Square depth 0.156" - 0.187"
Fully threaded Yes

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