1/4-20 Star Drive Flat Head Type F Thread Cutting Floorboard Screws Black Phosphate & Oil Finish"

Star Drive 6 Lobe Flat Head Thread Cutting Screws | Black Phosphate + Oil Finish - Type F

Diameter - Thread Pitch: 1/4"-20


  • Provide a tight fit
  • High resistances to torque, shear, and tension when applied
  • Feature a machine screw style thread
  • Blunt tapered point with multi-cutting edges and chip cavities
  • Star drive style to designed to reduce the chance of slip out during proper installation
  • Minimizes the chance to stripping
  • A thread cutting screw cuts its own threads into an existing hole

1/4"-20 Thread Cutting screws feature a thread cutting tip which makes threads in existing or pre-drilled holes.

Drill Bit Sizes for Thread Cutting Screws


Sizes Listed As:
Diameter - Thread Pitch x Length from Top of Head

Select Products Below See Product Specifications

NA = "Not Sold In Single Quantity"

Size
Select Package Quantity
SubTotal
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 1-1/4"
SKU #6000-016-0002
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 1-1/4"
SKU #6000-016-0002
1
NA
25
$4.25 (0.17/ea)
100
$10.00 (0.1/ea)
1000
$80.00 (0.08/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 1-1/2"
SKU #6000-016-0022
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 1-1/2"
SKU #6000-016-0022
1
NA
25
$11.50 (0.46/ea)
100
$42.00 (0.42/ea)
1000
$380.00 (0.38/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 2"
SKU #6000-016-0032
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 2"
SKU #6000-016-0032
1
NA
25
$4.75 (0.19/ea)
100
$16.00 (0.16/ea)
1000
$150.00 (0.15/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 2-1/4"
SKU #6000-016-0042
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 2-1/4"
SKU #6000-016-0042
1
NA
25
$12.00 (0.48/ea)
100
$44.00 (0.44/ea)
1000
$410.00 (0.41/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 2-1/2"
SKU #6000-016-0052
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 2-1/2"
SKU #6000-016-0052
1
NA
25
$6.50 (0.26/ea)
100
$24.00 (0.24/ea)
1000
$220.00 (0.22/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 3"
SKU #6000-016-0062
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 3"
SKU #6000-016-0062
1
NA
25
$19.75 (0.79/ea)
100
$73.00 (0.73/ea)
1000
$670.00 (0.67/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 1/2"
SKU #6000-016-0072
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 1/2"
SKU #6000-016-0072
1
NA
25
$7.75 (0.31/ea)
100
$25.00 (0.25/ea)
1000
$230.00 (0.23/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 3/4"
SKU #6000-016-0082
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 3/4"
SKU #6000-016-0082
1
NA
25
$7.25 (0.29/ea)
100
$23.00 (0.23/ea)
1000
$220.00 (0.22/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 1-3/4"
SKU #6000-016-0092
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 1-3/4"
SKU #6000-016-0092
1
NA
25
$12.00 (0.48/ea)
100
$44.00 (0.44/ea)
1000
$400.00 (0.4/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 2-3/4"
SKU #6000-016-0102
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 2-3/4"
SKU #6000-016-0102
1
NA
25
$15.25 (0.61/ea)
100
$59.00 (0.59/ea)
1000
$580.00 (0.58/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 3-1/2"
SKU #6000-016-0112
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 3-1/2"
SKU #6000-016-0112
1
$0.86 (0.86/ea)
25
$20.75 (0.83/ea)
100
$79.00 (0.79/ea)
1000
$780.00 (0.78/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 4"
SKU #6000-016-0122
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 4"
SKU #6000-016-0122
1
$1.36 (1.36/ea)
25
$33.00 (1.32/ea)
100
$125.00 (1.25/ea)
1000
$1,240.00 (1.24/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 4-1/2"
SKU #6000-016-0132
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 4-1/2"
SKU #6000-016-0132
1
$2.43 (2.43/ea)
25
$58.75 (2.35/ea)
100
$227.00 (2.27/ea)
1000
$2,250.00 (2.25/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 5"
SKU #6000-016-0142
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 5"
SKU #6000-016-0142
1
$2.30 (2.3/ea)
25
$55.00 (2.2/ea)
100
$212.00 (2.12/ea)
1000
$2,100.00 (2.1/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 5-1/2"
SKU #6000-016-0152
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 5-1/2"
SKU #6000-016-0152
1
$2.53 (2.53/ea)
25
$60.50 (2.42/ea)
100
$233.00 (2.33/ea)
1000
$2,320.00 (2.32/ea)
Subtotal: $0.00 /
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 6"
SKU #6000-016-0162
Star Drive Flat Head Type F Screws Black Phosphate 1/4"-20 x 6"
SKU #6000-016-0162
1
$3.50 (3.5/ea)
25
$84.00 (3.36/ea)
100
$325.00 (3.25/ea)
1000
$3,210.00 (3.21/ea)
Subtotal: $0.00 /

Frequently Used With

1
$2.19 (2.19/ea)
10
$18.50 (1.85/ea)
25
$45.75 (1.83/ea)
50
$89.50 (1.79/ea)
Subtotal: $0.00 /
1
$7.60 (7.6/ea)
5
$30.70 (6.14/ea)
10
$59.10 (5.91/ea)
Subtotal: $0.00 /

Product Specifications
Color
Black
Corrosion Resistant
Yes
Drive Style
Star
Finish
Black Phosphate & Oil
Grade
C1022
Head Diameter
Max 0.507 - Min 0.452
Head Style
Flat
Material
Steel
Point Type
F
Product Type
Thread Cutting (Floorboard) Screws
System of Measurement (Unit)
Inch
Thread Diameter
1/4"
Thread Diameter Major
0.25
Thread Diameter Minor
0.2408
Thread Direction
Right Hand
Thread Pitch (Count)
20 Per Inch
Thread Standard
UNC
Thread Type
Coarse
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
Torx Drive
T30