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Hex bolts, Zinc plated grade 5 steel, 1/2"-20 x 3/4"

Full thread grade 5 hex bolt

Prod. # Length Each price Bag price Bulk price Price Buy
521 3/4" $0.88 / ea $35.02 / 50 $306.00 / 500 $0.88 / ea $35.02 / 50 $306.00 / 500
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Product Images

Hex cap screw FT (Body) dimensions
Grade 5 (Head) dimensions
Product details
Bolt Depot product# 521
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 5
Grade 5 falls between grade 2 and grade 8 in strength, and is commonly found in automotive applications.
Thread density Fine
Diameter 1/2"
Thread count 20
Length 3/4"
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 0.302" - 0.323"
Width across the flats 3/4"
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
2579
$0.30 / ea
$10.24 / 50
$81.90 / 500
15033
SAE flat washers, Zinc plated grade 5 steel, 1/2"
SAE pattern is a tighter fit on the bolt and a smaller outside diameter.
$0.43 / ea
$14.25 / 50
$123.00 / 500
15025
USS flat washers, Zinc plated grade 5 steel, 1/2"
USS pattern is the most common type of flat washer.
$0.33 / ea
$11.15 / 50
$100.00 / 500

See also

Metric hex bolt

Metric hex bolts

A bolt with a six sided head.