Structural bolts A325, Hot dipped galvanized steel, 5/8"-11 x 4-1/2"

Grade A325 hex bolt

Important Note: Due to the plating thickness, only hot dipped galvanized nuts should be used on hot dipped galvanized hex bolts.

Prod. # Length Each price Bag price Bulk price Price Buy
21537 4-1/2" $6.35 / ea $105.76 / 25 $389.00 / 100 $6.35 / ea $105.76 / 25 $389.00 / 100
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Structural A325 hex bolt dimensions 1
Structural A325 hex bolt dimensions 2
Product details
Bolt Depot product# 21537
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 Structural bolts A325
The most common type of bolt used in structural connections offering a larger diameter hex head.
Material Steel
A medium carbon steel commonly used in structural connections.
Plating Hot dipped galvanized
Hot dipped galvanized is a coating for very good corrosion resistance.
Thread density Coarse
Diameter 5/8"
Thread count 11
Length 4-1/2"
Thread direction Right hand
Type Type 1
Length tolerance +0.00" / -0.12"
Structural Yes
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 0.378" - 0.403"
Width across the flats 1-1/16"
Fully threaded No
Thread length Minimum 1-1/4"
Body length Minimum 3.03"
Dimensional standard ASME B18.2.6

Matching Products

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Prod. # Description Buy
Structural nuts A563 grade DH, Hot dipped galvanized steel blue waxed finish, 5/8"-11
The standard nut used for A325 structural bolts and structural bolting applications.
$1.35 / ea
$22.48 / 25
$193.00 / 250
Structural nuts A194 grade 2H, Hot dipped galvanized steel, 5/8"-11
A194 nuts are used in special-purpose applications such as high service temperatures and pressures. Also suitable for use with A325 structural bolts.
$0.99 / ea
$16.46 / 25
$142.00 / 250
Structural washers F436, Hot dipped galvanized steel, 5/8"
A thick flat washer intended for use in structural connections.
$0.34 / ea
$12.89 / 50
$108.00 / 500
Lock washers, Hot dipped galvanized steel, 5/8"
Split lock washers place tension against a nut after tightening, to help prevent loosening.
$0.30 / ea
$9.72 / 50
$87.00 / 500