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Socket cap, Alloy steel black oxide finish, 1/2"-13 x 5-1/4"

Socket head screw

Prod. # Length Each price Bag price Bulk price Price Buy
8129 4 5-1/4" $4.22 / ea $76.67 / 25 $648.00 / 250 $4.22 / ea $76.67 / 25 $648.00 / 250

4 This item is a semi-standard size and is therefore more expensive.

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Socket head dimensions
Product details
Bolt Depot product# 8129
Units US
Category Socket screws
Screws with an Allen wrench drive.
Head style Socket cap
Socket caps have a small cylindrical head with tall vertical sides.
Drive type Allen
Allen (hex socket) drive is a six-sided recess for use with an Allen wrench (hex key).
Material Alloy steel
A high strength heat treated alloy steel.
Finish Black oxide
A chemically produced coating that leaves the steel surface with a matte black finish and offers mild corrosion resistance.
Thread density Coarse
Diameter 1/2"
Thread count 13
Length 5-1/4"
Drive depth Minimum 0.245"
Thread direction Right hand
Head diameter 0.725" - 0.750"
Head height 0.492" - 0.500"
Drive size 3/8"
Fully threaded No
Thread length Minimum 1.50"
Body length Minimum 3.36"
Dimensional standard ASME B18.3
Material standard ASTM A574

Matching Products

Click on a product # for additional info

Prod. # Description Buy
21579
Structural nuts A194 grade 2H, Steel plain finish, 1/2"-13
A194 nuts are used in special-purpose applications such as high service temperatures and pressures. Also suitable for use with A325 structural bolts.
$0.58 / ea
$9.66 / 25
$83.10 / 250
14802
High collar lock washers, Alloy steel black oxide finish, 1/2"
A split lock washer designed to fit under the head of a socket cap screw.
$0.25 / ea
$8.42 / 50
$75.70 / 500

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