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Machine screws, Slotted flat head, Aluminum, 1/4"-20 x 1"

Slotted flat head

Prod. # Length Each price Bag price Bulk price Price Buy
27391 1" $1.48 / ea $24.65 / 25 $90.70 / 100 $1.48 / ea $24.65 / 25 $90.70 / 100
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Slotted flat machine screw dimensions
Product details
Bolt Depot product# 27391
Units US
Category Machine screws
Screws with machine threads for use with a nut or in a tapped hole.
Subcategory Machine screws
Machine screws have machine threads for use with a nut or in a tapped hole.
Head style Flat
Flat heads are countersunk (cone shaped under the head) with a flat top.
Drive type Slotted
Slotted drive has a simple slot for a flat bladed screw driver.
Material Aluminum
A lightweight and corrosion resistant metal.
Grade 2024-T4
Thread density Coarse
Diameter 1/4"
Thread count 20
Length 1"
Dimensional standard ASME B18.6.3
Thread direction Right hand
Head angle 82°
Head height 0.153"
Head diameter 0.442" - 0.477"

Matching Products

Click on a product # for additional info

Prod. # Description Buy
27343
Hex nuts, Aluminum, 1/4"-20
A standard six sided nut.
$0.18 / ea
$2.76 / 25
$9.90 / 100
27352
Hex nylon insert lock nuts, Aluminum, 1/4"-20
A hex nut with a nylon ring to resist loosening.
$0.33 / ea
$5.43 / 25
$17.40 / 100
27373
Flat washers, Aluminum, 1/4"
General use flat washer
$0.18 / ea
$2.90 / 25
$10.40 / 100
27364
Lock washers, Aluminum, 1/4"
Split lock washers place tension against a nut after tightening, to help prevent loosening.
$0.24 / ea
$3.64 / 25
$11.60 / 100

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See also

Metric machine screw

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Screws with machine threads for use with a nut or in a tapped hole.

Socket product

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Screws with an Allen wrench drive.