Hex Cap Screws 18-8 Stainless Steel 1/4-28"

1/4"-28 Stainless Steel Hex Cap Screws

Diameter - Thread Pitch: 1/4" - 28


  • 1/4"-28
  • 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"-28 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 - 1/4-28 x 3/8" FT
SKU #8600202
Hex Cap Screws 18-8 SS - 1/4-28 x 3/8" FT
SKU #8600202
1
NA
25
$7.50 (0.3/ea)
100
$23.00 (0.23/ea)
1000
$220.00 (0.22/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 1/2" FT
SKU #86002
Hex Cap Screws 18-8 SS - 1/4-28 x 1/2" FT
SKU #86002
1
NA
25
$5.50 (0.22/ea)
100
$19.00 (0.19/ea)
1000
$160.00 (0.16/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 5/8" FT
SKU #86012
Hex Cap Screws 18-8 SS - 1/4-28 x 5/8" FT
SKU #86012
1
NA
25
$6.00 (0.24/ea)
100
$22.00 (0.22/ea)
1000
$190.00 (0.19/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 3/4" FT
SKU #86022
Hex Cap Screws 18-8 SS - 1/4-28 x 3/4" FT
SKU #86022
1
NA
25
$6.00 (0.24/ea)
100
$23.00 (0.23/ea)
1000
$190.00 (0.19/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 7/8" FT
SKU #86032
Hex Cap Screws 18-8 SS - 1/4-28 x 7/8" FT
SKU #86032
1
NA
25
$6.50 (0.26/ea)
100
$25.00 (0.25/ea)
1000
$210.00 (0.21/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 1" FT
SKU #86042
Hex Cap Screws 18-8 SS - 1/4-28 x 1" FT
SKU #86042
1
NA
25
$6.75 (0.27/ea)
100
$26.00 (0.26/ea)
1000
$220.00 (0.22/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 1-1/4" PT
SKU #86052
Hex Cap Screws 18-8 SS - 1/4-28 x 1-1/4" PT
SKU #86052
1
NA
25
$7.25 (0.29/ea)
100
$28.00 (0.28/ea)
1000
$240.00 (0.24/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 1-1/2" PT
SKU #86062
Hex Cap Screws 18-8 SS - 1/4-28 x 1-1/2" PT
SKU #86062
1
NA
25
$8.75 (0.35/ea)
100
$32.00 (0.32/ea)
1000
$280.00 (0.28/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 1-3/4" PT
SKU #86072
Hex Cap Screws 18-8 SS - 1/4-28 x 1-3/4" PT
SKU #86072
1
NA
25
$9.00 (0.36/ea)
100
$35.00 (0.35/ea)
1000
$300.00 (0.3/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 2" PT
SKU #86082
Hex Cap Screws 18-8 SS - 1/4-28 x 2" PT
SKU #86082
1
NA
25
$11.25 (0.45/ea)
100
$40.00 (0.4/ea)
1000
$340.00 (0.34/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 2-1/4" PT
SKU #86092
Hex Cap Screws 18-8 SS - 1/4-28 x 2-1/4" PT
SKU #86092
1
NA
25
$12.25 (0.49/ea)
100
$47.00 (0.47/ea)
1000
$440.00 (0.44/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 2-1/2" PT
SKU #86102
Hex Cap Screws 18-8 SS - 1/4-28 x 2-1/2" PT
SKU #86102
1
NA
25
$13.00 (0.52/ea)
100
$46.00 (0.46/ea)
1000
$390.00 (0.39/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 2-3/4" PT
SKU #86112
Hex Cap Screws 18-8 SS - 1/4-28 x 2-3/4" PT
SKU #86112
1
NA
25
$14.75 (0.59/ea)
100
$57.00 (0.57/ea)
1000
$530.00 (0.53/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 3" PT
SKU #86122
Hex Cap Screws 18-8 SS - 1/4-28 x 3" PT
SKU #86122
1
NA
25
$15.25 (0.61/ea)
100
$56.00 (0.56/ea)
1000
$480.00 (0.48/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 3-1/4" PT
SKU #86132
Hex Cap Screws 18-8 SS - 1/4-28 x 3-1/4" PT
SKU #86132
1
$0.70 (0.7/ea)
25
$16.75 (0.67/ea)
100
$66.00 (0.66/ea)
1000
$640.00 (0.64/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 3-1/2" PT
SKU #86142
Hex Cap Screws 18-8 SS - 1/4-28 x 3-1/2" PT
SKU #86142
1
$0.83 (0.83/ea)
25
$18.50 (0.74/ea)
100
$69.00 (0.69/ea)
1000
$590.00 (0.59/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 3-3/4" PT
SKU #86152
Hex Cap Screws 18-8 SS - 1/4-28 x 3-3/4" PT
SKU #86152
1
$0.79 (0.79/ea)
25
$19.25 (0.77/ea)
100
$74.00 (0.74/ea)
1000
$720.00 (0.72/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 4" PT
SKU #86162
Hex Cap Screws 18-8 SS - 1/4-28 x 4" PT
SKU #86162
1
$0.99 (0.99/ea)
25
$22.25 (0.89/ea)
100
$85.00 (0.85/ea)
1000
$720.00 (0.72/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 4-1/2" PT
SKU #86172
Hex Cap Screws 18-8 SS - 1/4-28 x 4-1/2" PT
SKU #86172
1
$1.10 (1.1/ea)
25
$24.75 (0.99/ea)
100
$98.00 (0.98/ea)
1000
$830.00 (0.83/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 5" PT
SKU #86182
Hex Cap Screws 18-8 SS - 1/4-28 x 5" PT
SKU #86182
1
$1.67 (1.67/ea)
25
$37.50 (1.5/ea)
100
$141.00 (1.41/ea)
1000
$1,190.00 (1.19/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 5-1/2" PT
SKU #86192
Hex Cap Screws 18-8 SS - 1/4-28 x 5-1/2" PT
SKU #86192
1
$1.14 (1.14/ea)
25
$27.25 (1.09/ea)
100
$106.00 (1.06/ea)
1000
$1,030.00 (1.03/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/4-28 x 6" PT
SKU #86202
Hex Cap Screws 18-8 SS - 1/4-28 x 6" PT
SKU #86202
1
$1.74 (1.74/ea)
25
$39.00 (1.56/ea)
100
$149.00 (1.49/ea)
1000
$1,260.00 (1.26/ea)
Subtotal: $0.00 /



FREQUENTLY USED WITH

1
NA
25
$2.75 (0.11/ea)
100
$7.00 (0.07/ea)
1000
$60.00 (0.06/ea)
Subtotal: $0.00 /
1
NA
25
$1.50 (0.06/ea)
100
$5.00 (0.05/ea)
1000
$40.00 (0.04/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)
28 Per Inch
Thread Standard
UNF
Thread Type
Fine
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"