Hex Cap Screws 18-8 Stainless Steel 1/4-20"

1/4"-20 Stainless Steel Hex Cap Screws

Diameter - Thread Pitch: 1/4" - 20


  • 1/4"-20
  • Hexagon head designed to be driven by a wrench or socket
  • Also called hex cap bolts, hex bolts, tap bolts or hex cap screws
  • 18-8 Stainless steel hex cap screws offer protection from weather and corrosive environments
  • Rust resistant in freshwater environments
  • For saltwater environments use the 316 stainless steel version

A hex cap screw in smaller sizes may not have a shoulder. When a hex cap screw is fully threaded it can also be referred to as a tap bolt.

Hex Bolts are measured as: Diameter x Thread Pitch x Length from Under Head
FT: Fully Threaded
PT: Partially Threaded


**1/4"-20 Hex Cap Screws listed as PT, usually have a threaded portion of about 3/4".
However, this can vary slightly from manufacturer to manufacturer.

Select Products Below See Product Specifications

NA = "Not Sold In Single Quantity"

Size
Select Package Quantity
SubTotal
Hex Cap Screws 18-8 SS - 1/4-20 x 3/8" FT
SKU #85002
Hex Cap Screws 18-8 SS - 1/4-20 x 3/8" FT
SKU #85002
1
NA
25
$4.00 (0.16/ea)
100
$13.00 (0.13/ea)
1000
$120.00 (0.12/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 7/16" FT
SKU #85012
Hex Cap Screws 18-8 SS - 1/4-20 x 7/16" FT
SKU #85012
1
NA
25
$6.50 (0.26/ea)
100
$21.00 (0.21/ea)
1000
$180.00 (0.18/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 1/2" FT
SKU #85022
Hex Cap Screws 18-8 SS - 1/4-20 x 1/2" FT
SKU #85022
1
NA
25
$3.75 (0.15/ea)
100
$14.00 (0.14/ea)
1000
$120.00 (0.12/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 5/8" FT
SKU #85032
Hex Cap Screws 18-8 SS - 1/4-20 x 5/8" FT
SKU #85032
1
NA
25
$4.25 (0.17/ea)
100
$14.00 (0.14/ea)
1000
$120.00 (0.12/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 3/4" FT
SKU #85042
Hex Cap Screws 18-8 SS - 1/4-20 x 3/4" FT
SKU #85042
1
NA
25
$4.50 (0.18/ea)
100
$14.00 (0.14/ea)
1000
$130.00 (0.13/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 7/8" FT
SKU #85052
Hex Cap Screws 18-8 SS - 1/4-20 x 7/8" FT
SKU #85052
1
NA
25
$4.75 (0.19/ea)
100
$15.00 (0.15/ea)
1000
$130.00 (0.13/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 1" FT
SKU #85062
Hex Cap Screws 18-8 SS - 1/4-20 x 1" FT
SKU #85062
1
NA
25
$5.00 (0.2/ea)
100
$16.00 (0.16/ea)
1000
$140.00 (0.14/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 1-1/8" FT
SKU #85072
Hex Cap Screws 18-8 SS - 1/4-20 x 1-1/8" FT
SKU #85072
1
NA
25
$7.75 (0.31/ea)
100
$25.00 (0.25/ea)
1000
$220.00 (0.22/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 1-1/4" PT
SKU #85082
Hex Cap Screws 18-8 SS - 1/4-20 x 1-1/4" PT
SKU #85082
1
NA
25
$6.50 (0.26/ea)
100
$18.00 (0.18/ea)
1000
$160.00 (0.16/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 1-3/8" PT
SKU #85092
Hex Cap Screws 18-8 SS - 1/4-20 x 1-3/8" PT
SKU #85092
1
NA
25
$10.00 (0.4/ea)
100
$34.00 (0.34/ea)
1000
$300.00 (0.3/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 1-1/2" PT
SKU #85102
Hex Cap Screws 18-8 SS - 1/4-20 x 1-1/2" PT
SKU #85102
1
NA
25
$6.75 (0.27/ea)
100
$21.00 (0.21/ea)
1000
$190.00 (0.19/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 1-5/8" PT
SKU #85112
Hex Cap Screws 18-8 SS - 1/4-20 x 1-5/8" PT
SKU #85112
1
$0.63 (0.63/ea)
25
$14.00 (0.56/ea)
100
$46.00 (0.46/ea)
1000
$400.00 (0.4/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 1-3/4" PT
SKU #85122
Hex Cap Screws 18-8 SS - 1/4-20 x 1-3/4" PT
SKU #85122
1
NA
25
$7.75 (0.31/ea)
100
$26.00 (0.26/ea)
1000
$230.00 (0.23/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 2" PT
SKU #85132
Hex Cap Screws 18-8 SS - 1/4-20 x 2" PT
SKU #85132
1
NA
25
$9.00 (0.36/ea)
100
$30.00 (0.3/ea)
1000
$260.00 (0.26/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 2-1/4" PT
SKU #85142
Hex Cap Screws 18-8 SS - 1/4-20 x 2-1/4" PT
SKU #85142
1
NA
25
$9.25 (0.37/ea)
100
$32.00 (0.32/ea)
1000
$280.00 (0.28/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 2-1/2" PT
SKU #85152
Hex Cap Screws 18-8 SS - 1/4-20 x 2-1/2" PT
SKU #85152
1
NA
25
$10.00 (0.4/ea)
100
$35.00 (0.35/ea)
1000
$310.00 (0.31/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 2-3/4" PT
SKU #85162
Hex Cap Screws 18-8 SS - 1/4-20 x 2-3/4" PT
SKU #85162
1
NA
25
$10.75 (0.43/ea)
100
$37.00 (0.37/ea)
1000
$330.00 (0.33/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 3" PT
SKU #85172
Hex Cap Screws 18-8 SS - 1/4-20 x 3" PT
SKU #85172
1
NA
25
$11.25 (0.45/ea)
100
$40.00 (0.4/ea)
1000
$350.00 (0.35/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 3-1/4" PT
SKU #85182
Hex Cap Screws 18-8 SS - 1/4-20 x 3-1/4" PT
SKU #85182
1
NA
25
$11.25 (0.45/ea)
100
$42.00 (0.42/ea)
1000
$370.00 (0.37/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 3-1/2" PT
SKU #85192
Hex Cap Screws 18-8 SS - 1/4-20 x 3-1/2" PT
SKU #85192
1
NA
25
$12.25 (0.49/ea)
100
$43.00 (0.43/ea)
1000
$380.00 (0.38/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 3-3/4" PT
SKU #85202
Hex Cap Screws 18-8 SS - 1/4-20 x 3-3/4" PT
SKU #85202
1
NA
25
$13.50 (0.54/ea)
100
$49.00 (0.49/ea)
1000
$430.00 (0.43/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 4" PT
SKU #85212
Hex Cap Screws 18-8 SS - 1/4-20 x 4" PT
SKU #85212
1
NA
25
$15.25 (0.61/ea)
100
$57.00 (0.57/ea)
1000
$490.00 (0.49/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 4-1/4" PT
SKU #85222
Hex Cap Screws 18-8 SS - 1/4-20 x 4-1/4" PT
SKU #85222
1
$0.84 (0.84/ea)
25
$18.75 (0.75/ea)
100
$69.00 (0.69/ea)
1000
$600.00 (0.6/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 4-1/2" PT
SKU #85232
Hex Cap Screws 18-8 SS - 1/4-20 x 4-1/2" PT
SKU #85232
1
$0.89 (0.89/ea)
25
$20.00 (0.8/ea)
100
$70.00 (0.7/ea)
1000
$610.00 (0.61/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 5" PT
SKU #85242
Hex Cap Screws 18-8 SS - 1/4-20 x 5" PT
SKU #85242
1
$0.92 (0.92/ea)
25
$20.50 (0.82/ea)
100
$75.00 (0.75/ea)
1000
$660.00 (0.66/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 5-1/2" PT
SKU #85252
Hex Cap Screws 18-8 SS - 1/4-20 x 5-1/2" PT
SKU #85252
1
$1.09 (1.09/ea)
25
$24.50 (0.98/ea)
100
$93.00 (0.93/ea)
1000
$820.00 (0.82/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 6" PT
SKU #85262
Hex Cap Screws 18-8 SS - 1/4-20 x 6" PT
SKU #85262
1
$1.18 (1.18/ea)
25
$26.50 (1.06/ea)
100
$96.00 (0.96/ea)
1000
$840.00 (0.84/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 6-1/2" PT
SKU #85272
Hex Cap Screws 18-8 SS - 1/4-20 x 6-1/2" PT
SKU #85272
1
$6.63 (6.63/ea)
25
$159.25 (6.37/ea)
100
$610.00 (6.1/ea)
1000
$6,090.00 (6.09/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 7" PT
SKU #85282
Hex Cap Screws 18-8 SS - 1/4-20 x 7" PT
SKU #85282
1
$5.12 (5.12/ea)
25
$103.75 (4.15/ea)
100
$394.00 (3.94/ea)
1000
$3,790.00 (3.79/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 8" PT
SKU #85292
Hex Cap Screws 18-8 SS - 1/4-20 x 8" PT
SKU #85292
1
$8.10 (8.1/ea)
25
$150.25 (6.01/ea)
100
$571.00 (5.71/ea)
1000
$5,490.00 (5.49/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 9" PT
SKU #85302
Hex Cap Screws 18-8 SS - 1/4-20 x 9" PT
SKU #85302
1
$10.71 (10.71/ea)
25
$257.00 (10.28/ea)
100
$982.00 (9.82/ea)
1000
$9,800.00 (9.8/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 10" PT
SKU #85312
Hex Cap Screws 18-8 SS - 1/4-20 x 10" PT
SKU #85312
1
$14.00 (14/ea)
25
$319.25 (12.77/ea)
100
$1,213.00 (12.13/ea)
1000
$11,870.00 (11.87/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-20 x 12" PT
SKU #85322
Hex Cap Screws 18-8 SS - 1/4-20 x 12" PT
SKU #85322
1
$14.80 (14.8/ea)
25
$340.50 (13.62/ea)
100
$1,340.00 (13.4/ea)
1000
$13,290.00 (13.29/ea)
Subtotal: $0.00 /

Frequently Used With

1
NA
25
$1.50 (0.06/ea)
100
$5.00 (0.05/ea)
1000
$40.00 (0.04/ea)
Subtotal: $0.00 /
1
NA
25
$2.75 (0.11/ea)
100
$9.00 (0.09/ea)
1000
$80.00 (0.08/ea)
Subtotal: $0.00 /

Product Specifications
ASME
B18.2.1
Color
Silver
Corrosion Resistant
Yes
Diameter
1/4"
Drive Style
External Hex
Grade
18-8
Head Height Max
0.032
Head Style
Hex
Material
Stainless Steel
Product Type
Hex Cap Screws
Standards Met
ASME B18.2.1
System of Measurement (Unit)
Inch
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
Width Across Corners
Max 0.505 - Min 0.488
Wrench Size
7/16"