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Type F machine screws, Star drive flat head type F (trailer screws), Steel black phosphate finish, 1/4"-20 x 2-1/4"

Star drive flat head thread cutting screw type F

Prod. # Length Each price Bag price Bulk price Price Buy
14894 2-1/4" $0.30 / ea $16.68 / 100 $141.00 / 1,000 $0.30 / ea $16.68 / 100 $141.00 / 1,000
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Star drive flat type F machine screw dimensions
Product details
Bolt Depot product# 14894
Units US
Category Machine screws
Screws with machine threads for use with a nut or in a tapped hole.
Subcategory Type F machine screws
Thread cutting machine screws that tap their own threads.
Point type Type F
Type F screws have a thread cutting tip.
Head style Flat
Flat heads are countersunk (cone shaped under the head) with a flat top.
Drive type Star
Star drive is a Torx® compatible drive, designed to minimize the risk of cam-out (stripping).
Material Steel
Carbon steel for general use.
Finish Black phosphate
A chemically produced coating that leaves the steel surface with a matte black finish.
Thread density Coarse
Diameter 1/4"
Thread count 20
Length 2-1/4"
Dimensional standard ASME B18.6.3
Thread direction Right hand
Head angle 82°
Head height 0.153"
Head diameter 0.442" - 0.477"
Drive size T30

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