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Socket flat head, Alloy steel black oxide finish, 5/16"-18 x 4"

Socket flat head screw

Prod. # Length Each price Bag price Bulk price Price Buy
12780 4 4" $1.08 / ea $83.19 / 100 $732.00 / 1,000 $1.08 / ea $83.19 / 100 $732.00 / 1,000

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

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Socket flat head dimensions
Product details
Bolt Depot product# 12780
Units US
Category Socket screws
Screws with an Allen wrench drive.
Head style Flat
Flat heads are countersunk (cone shaped under the head) with a flat top.
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 5/16"
Thread count 18
Length 4"
Drive depth Minimum 0.135"
Thread direction Right hand
Head angle 82°
Head height 0.198"
Head diameter 0.600" - 0.656"
Drive size 3/16"
Dimensional standard ASME B18.3
Material standard ASTM F835

Matching Products

Click on a product # for additional info

Prod. # Description Buy
27295
Structural nuts A194 grade 2H, Steel plain finish, 5/16"-18
A194 nuts are used in special-purpose applications such as high service temperatures and pressures. Also suitable for use with A325 structural bolts.
$0.19 / ea
$12.76 / 100
$110.00 / 1,000

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