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Prod. # Length Each price Bag price Bulk price Price Buy
21819 2-1/2" $1.32 / ea $100.92 / 100 $868.00 / 1,000 $1.32 / ea $100.92 / 100 $868.00 / 1,000
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Socket flat head dimensions
Product details
Bolt Depot product# 21819
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 Stainless steel
Grade 316
A highly corrosion resistant grade of stainless steel. Ideal in salt water and chlorine environments.
Thread density Coarse
Diameter 1/4"
Thread count 20
Length 2-1/2"
Drive depth Minimum 0.111"
Thread direction Right hand
Head angle 82°
Head height 0.161"
Head diameter 0.480" - 0.531"
Drive size 5/32"
Fully threaded Yes
Dimensional standard ASME B18.3

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