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Machine Screws, Star Drive Flat Head, 6-Lobe Torx, Stainless Steel 18-8, 1/4"-20 x 1/2"

Diameter - Thread Pitch: 1/4"-20
  • Countersunk flat head with a star (6 lobe) drive
  • A machine screw is commonly identified by its small size
  • Used with nuts or in a pre-drilled hole
  • Designed to prevent stripping during proper installation
  • Higher torque can be used with this drive style
  • 18-8 stainless steel is the fastener industry standard
  • Suitable for freshwater environments

1/4"-20 Star drive flat head machine screws are made of 18-8 stainless steel.

Product number: 1079-070-0002
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Click on a size/sku in the table to view product-specific details and specifications.

Specifications

  • Color: Silver
  • Condition: New
  • Corrosion Resistant: Yes
  • Countersink: 82 Degree
  • Diameter: 1/4"
  • Drive Style: Star
  • Head Type: Flat Head
  • Thread Direction: Right Hand
  • Thread Type: Coarse
  • Fit: 2A
  • Grade: 18-8
  • Head Diameter: Max 0.507 - Min 0.452
  • Head Style: Flat
  • Length: 1/2"
  • Material: Stainless Steel
  • Overall Head Height: Max 0.153 - Min 0.131 (From Bottom of Undercut to Top of Head)
  • Part Number: 787392591759
  • Product Type: Machine Screws
  • Size: 1/4"-20 x 1/2"
  • Size System: US
  • Size Type: Regular
  • System of Measurement: Inch
  • Thread Diameter: 1/4" (#14) Max 0.2489 - Min 0.2408
  • Thread Direction: Right Hand
  • Thread Pitch: 20 Per Inch
  • Thread Size: 1/4"-20
  • Thread Standard: UNC
  • Thread Type: Coarse
  • Tolerance (IFI): Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
  • Star Drive: T27
  • Weight: 1 lb
Select Size/SKU & Quantity
4 Available Sizes
SIZE/SKU Review Volume Pricing* Enter Any Qty
1/4"-20 x 1/2"(T27 Drive)
1079-070-0002
1
$0.45 ($0.45/ea)
100
$30.00 ($0.30/ea)
1000
$270.00 ($0.27/ea)
$0.00
1/4"-20 x 3/4"(T27 Drive)
1079-070-0007
1
$0.47 ($0.47/ea)
100
$13.00 ($0.13/ea)
1000
$120.00 ($0.12/ea)
$0.00
1/4"-20 x 1"(T27 Drive)
1079-070-0012
1
$0.50 ($0.50/ea)
100
$25.00 ($0.25/ea)
1000
$160.00 ($0.16/ea)
$0.00
1/4"-20 x 1-1/2"(T27 Drive)
1079-070-0022
1
$0.60 ($0.60/ea)
100
$42.00 ($0.42/ea)
1000
$380.00 ($0.38/ea)
$0.00

Frequently Used With

Star Drive Power Bits, T27, Length 2" Star Drive Power Bits, T27, Length 2"
Volume Pricing*
1
$2.04
($2.04/ea)
10
$19.00
($1.90/ea)
50
$85.00
($1.70/ea)
$0.00
Hex Finish Nuts, Stainless Steel 304, 1/4"-20 (7/16" Flats x 7/32" Thick) Hex Finish Nuts, Stainless Steel 304, 1/4"-20 (7/16" Flats x 7/32" Thick)
Volume Pricing*
1
$0.09
($0.09/ea)
100
$6.00
($0.06/ea)
1000
$50.00
($0.05/ea)
$0.00
Flat Washers, Stainless Steel 304, 1/4" (.281 ID x 5/8 OD x .050 Thick) Flat Washers, Stainless Steel 304, 1/4" (.281 ID x 5/8 OD x .050 Thick)
Volume Pricing*
1
$0.09
($0.09/ea)
100
$3.00
($0.03/ea)
1000
$20.00
($0.02/ea)
$0.00
Lock Washers, Split Ring, Stainless Steel 304, 1/4" (.252 ID x .487 OD x .062 Thick) Lock Washers, Split Ring, Stainless Steel 304, 1/4" (.252 ID x .487 OD x .062 Thick)
Volume Pricing*
1
$0.08
($0.08/ea)
100
$4.00
($0.04/ea)
1000
$30.00
($0.03/ea)
$0.00
Nylon Lock Nuts, Stainless Steel 304, 1/4-20 (.439 Flats x .328 Height) Nylon Lock Nuts, Stainless Steel 304, 1/4-20 (.439 Flats x .328 Height)
Volume Pricing*
1
$0.15
($0.15/ea)
100
$11.00
($0.11/ea)
1000
$90.00
($0.09/ea)
$0.00

*Volume pricing available on select products. Products without quantity breaks are priced per unit.

Page Total: $0.00

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