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Socket cap, Alloy steel black oxide finish, 5/16"-24 x 5/16"

Socket head screw

Prod. # Length Each price Bag price Bulk price Price Buy
8309 4 5/16" $0.85 / ea $57.93 / 100 $507.00 / 1,000 $0.85 / ea $57.93 / 100 $507.00 / 1,000

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

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Socket head dimensions
Socket head dimensions
Product details
Bolt Depot product# 8309
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 Fine
Diameter 5/16"
Thread count 24
Length 5/16"
Drive depth Minimum 0.151"
Thread direction Right hand
Head diameter 0.446" - 0.469"
Head height 0.306" - 0.312"
Drive size 1/4"
Fully threaded Yes
Dimensional standard ASME B18.3
Material standard ASTM A574

Matching Products

Click on a product # for additional info

Prod. # Description Buy
14799
High collar lock washers, Alloy steel black oxide finish, 5/16"
A split lock washer designed to fit under the head of a socket cap screw.
$0.11 / ea
$6.82 / 100
$58.30 / 1,000

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