Hex Cap Screws 18-8 Stainless Steel 1/2-20"

1/2"-20 Stainless Steel Hex Cap Screws

Diameter - Thread Pitch: 1/2" - 20


  • 1/2"-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


** 1/2"-20 Hex Cap Screws listed as PT, usually have a threaded portion of about 1-1/4".
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 - 1/2-20 x 3/4" FT
SKU #94002
Hex Cap Screws 18-8 SS - 1/2-20 x 3/4" FT
SKU #94002
1
$1.17 (1.17/ea)
25
$24.00 (0.96/ea)
100
$91.00 (0.91/ea)
1000
$850.00 (0.85/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 7/8" FT
SKU #94012
Hex Cap Screws 18-8 SS - 1/2-20 x 7/8" FT
SKU #94012
1
$1.24 (1.24/ea)
25
$29.75 (1.19/ea)
100
$115.00 (1.15/ea)
1000
$1,110.00 (1.11/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 1" FT
SKU #94022
Hex Cap Screws 18-8 SS - 1/2-20 x 1" FT
SKU #94022
1
$1.23 (1.23/ea)
25
$26.75 (1.07/ea)
100
$102.00 (1.02/ea)
1000
$950.00 (0.95/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 1-1/4" FT
SKU #94032
Hex Cap Screws 18-8 SS - 1/2-20 x 1-1/4" FT
SKU #94032
1
$1.34 (1.34/ea)
25
$29.25 (1.17/ea)
100
$111.00 (1.11/ea)
1000
$1,040.00 (1.04/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 1-3/8" FT
SKU #94042
Hex Cap Screws 18-8 SS - 1/2-20 x 1-3/8" FT
SKU #94042
1
$1.43 (1.43/ea)
25
$34.25 (1.37/ea)
100
$132.00 (1.32/ea)
1000
$1,290.00 (1.29/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 1-1/2" FT
SKU #94052
Hex Cap Screws 18-8 SS - 1/2-20 x 1-1/2" FT
SKU #94052
1
$1.40 (1.4/ea)
25
$30.75 (1.23/ea)
100
$117.00 (1.17/ea)
1000
$1,090.00 (1.09/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 1-3/4" FT
SKU #94062
Hex Cap Screws 18-8 SS - 1/2-20 x 1-3/4" FT
SKU #94062
1
$1.54 (1.54/ea)
25
$34.00 (1.36/ea)
100
$129.00 (1.29/ea)
1000
$1,210.00 (1.21/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 2" PT
SKU #94072
Hex Cap Screws 18-8 SS - 1/2-20 x 2" PT
SKU #94072
1
$1.84 (1.84/ea)
25
$40.75 (1.63/ea)
100
$155.00 (1.55/ea)
1000
$1,450.00 (1.45/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 2-1/4" PT
SKU #94082
Hex Cap Screws 18-8 SS - 1/2-20 x 2-1/4" PT
SKU #94082
1
$3.36 (3.36/ea)
25
$81.25 (3.25/ea)
100
$311.00 (3.11/ea)
1000
$3,090.00 (3.09/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 2-1/2" PT
SKU #94092
Hex Cap Screws 18-8 SS - 1/2-20 x 2-1/2" PT
SKU #94092
1
$2.15 (2.15/ea)
25
$47.00 (1.88/ea)
100
$179.00 (1.79/ea)
1000
$1,670.00 (1.67/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 2-3/4" PT
SKU #94102
Hex Cap Screws 18-8 SS - 1/2-20 x 2-3/4" PT
SKU #94102
1
$4.37 (4.37/ea)
25
$105.50 (4.22/ea)
100
$403.00 (4.03/ea)
1000
$4,010.00 (4.01/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 3" PT
SKU #94112
Hex Cap Screws 18-8 SS - 1/2-20 x 3" PT
SKU #94112
1
$2.42 (2.42/ea)
25
$52.00 (2.08/ea)
100
$198.00 (1.98/ea)
1000
$1,840.00 (1.84/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 3-1/4" PT
SKU #94122
Hex Cap Screws 18-8 SS - 1/2-20 x 3-1/4" PT
SKU #94122
1
$5.30 (5.3/ea)
25
$127.50 (5.1/ea)
100
$488.00 (4.88/ea)
1000
$4,860.00 (4.86/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 3-1/2" PT
SKU #94132
Hex Cap Screws 18-8 SS - 1/2-20 x 3-1/2" PT
SKU #94132
1
$3.28 (3.28/ea)
25
$71.25 (2.85/ea)
100
$271.00 (2.71/ea)
1000
$2,530.00 (2.53/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 3-3/4" PT
SKU #94142
Hex Cap Screws 18-8 SS - 1/2-20 x 3-3/4" PT
SKU #94142
1
$7.13 (7.13/ea)
25
$171.25 (6.85/ea)
100
$656.00 (6.56/ea)
1000
$6,540.00 (6.54/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 4" PT
SKU #94152
Hex Cap Screws 18-8 SS - 1/2-20 x 4" PT
SKU #94152
1
$3.98 (3.98/ea)
25
$79.25 (3.17/ea)
100
$301.00 (3.01/ea)
1000
$2,810.00 (2.81/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 4-1/2" PT
SKU #94162
Hex Cap Screws 18-8 SS - 1/2-20 x 4-1/2" PT
SKU #94162
1
$4.09 (4.09/ea)
25
$86.50 (3.46/ea)
100
$329.00 (3.29/ea)
1000
$3,070.00 (3.07/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 5" PT
SKU #94172
Hex Cap Screws 18-8 SS - 1/2-20 x 5" PT
SKU #94172
1
$4.66 (4.66/ea)
25
$108.00 (4.32/ea)
100
$410.00 (4.1/ea)
1000
$3,840.00 (3.84/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 5-1/2" PT
SKU #94182
Hex Cap Screws 18-8 SS - 1/2-20 x 5-1/2" PT
SKU #94182
1
$13.25 (13.25/ea)
25
$317.50 (12.7/ea)
100
$1,216.00 (12.16/ea)
1000
$12,150.00 (12.15/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 6" PT
SKU #94192
Hex Cap Screws 18-8 SS - 1/2-20 x 6" PT
SKU #94192
1
$6.06 (6.06/ea)
25
$120.00 (4.8/ea)
100
$447.00 (4.47/ea)
1000
$4,260.00 (4.26/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 6-1/2" PT
SKU #94202
Hex Cap Screws 18-8 SS - 1/2-20 x 6-1/2" PT
SKU #94202
1
$33.14 (33.14/ea)
25
$794.25 (31.77/ea)
100
$3,040.00 (30.4/ea)
1000
$30,380.00 (30.38/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 7" PT
SKU #94212
Hex Cap Screws 18-8 SS - 1/2-20 x 7" PT
SKU #94212
1
$34.67 (34.67/ea)
25
$830.75 (33.23/ea)
100
$3,181.00 (31.81/ea)
1000
$31,800.00 (31.8/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 7-1/2" PT
SKU #94222
Hex Cap Screws 18-8 SS - 1/2-20 x 7-1/2" PT
SKU #94222
1
$35.69 (35.69/ea)
25
$855.25 (34.21/ea)
100
$3,273.00 (32.73/ea)
1000
$32,700.00 (32.7/ea)
Subtotal: $0.00 /
Hex Cap Screws 18-8 SS - 1/2-20 x 8" PT
SKU #94232
Hex Cap Screws 18-8 SS - 1/2-20 x 8" PT
SKU #94232
1
$36.20 (36.2/ea)
25
$867.00 (34.68/ea)
100
$3,320.00 (33.2/ea)
1000
$33,180.00 (33.18/ea)
Subtotal: $0.00 /



FREQUENTLY USED WITH

1
NA
25
$10.25 (0.41/ea)
100
$33.00 (0.33/ea)
1000
$280.00 (0.28/ea)
Subtotal: $0.00 /
1
NA
25
$6.00 (0.24/ea)
100
$18.00 (0.18/ea)
1000
$150.00 (0.15/ea)
Subtotal: $0.00 /

Product Specifications
ASME
B18.2.1
Color
Silver
Corrosion Resistant
Yes
Diameter
1/2"
Drive Style
External Hex
Grade
18-8
Head Height
Basic 5/16", Max 0.323 - Min 0.302
Head Height Max
0.323
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
UNF
Thread Type
Fine
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
Width Across Corners
Max 0.866 - Min 0.840
Wrench Size
3/4"