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Socket screws
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Socket cap
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Alloy steel black oxide finish
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Coarse (standard) thread
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1/2"-13
Socket cap, Alloy steel black oxide finish, 1/2"-13 x 8-1/2"
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8137
8-1/2"
$8.73
/ ea
$159.60
/ 25
$1,309.00
/ 250
$8.73
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$159.60
/ 25
$1,309.00
/ 250
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Product details
Bolt Depot product#
8137
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
8-1/2"
Thread direction
Right hand
Drive depth
Minimum
0.245"
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
6.62"
Dimensional standard
ASME B18.3
Material standard
ASTM A574
Additional information
US Socket cap sizes
What driver size do I need?
Matching Products
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Prod. #
Description
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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.
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$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.
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$0.25
/ ea
$8.42
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50
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500
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Related Products
Driver bits
Bits for Allen drive screws (a.k.a. socket products).