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Machine screws, Phillips flat head, Zinc plated steel, 1/4"-20 x 1/2"

Phillips flat head

Prod. # Length Each price Bag price Bulk price Price Buy
1530 1/2" $0.18 / ea $8.46 / 100 $69.10 / 1,000 $0.18 / ea $8.46 / 100 $69.10 / 1,000
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Phillips flat machine screw dimensions
Product details
Bolt Depot product# 1530
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 Phillips
Phillips drive is x-shaped for installation with a Phillips screw driver.
Material Steel
A low carbon steel for general use.
Plating Zinc
Zinc plated for moderate corrosion resistance.
Thread density Coarse
Diameter 1/4"
Thread count 20
Length 1/2"
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 #3

Matching Products

Click on a product # for additional info

Prod. # Description Buy
2648
Hex nuts, Zinc plated steel, 1/4"-20
A standard six sided nut.
$0.06 / ea
$3.93 / 100
$31.40 / 1,000
2624
Hex nylon insert lock nuts, Zinc plated steel, 1/4"-20
A hex nut with a nylon ring to resist loosening.
$0.12 / ea
$5.19 / 100
$44.40 / 1,000
2994
USS flat washers, Zinc plated steel, 1/4"
USS pattern is the most common type of flat washer.
$0.06 / ea
$3.80 / 100
$32.30 / 1,000
2976
SAE flat washers, Zinc plated steel, 1/4"
SAE pattern is a tighter fit on the bolt and a smaller outside diameter.
$0.05 / ea
$2.29 / 100
$19.50 / 1,000
3024
Lock washers, Zinc plated steel, 1/4"
Split lock washers place tension against a nut after tightening, to help prevent loosening.
$0.08 / ea
$1.74 / 100
$14.20 / 1,000

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Screws with an Allen wrench drive.