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Socket Cap Screws, Stainless Steel 18-8, 1/2"-20 x 1-1/2, Full Thread

Screw Diameter - Thread Pitch: 1/2"-20

1/2"-20 Stainless steel Knurled Head socket cap screws are bolts or machine screws with a Hex or Allen drive style.

  • Commonly referred to as allen bolts, socket head cap screws, or socket head screws
  • Driven manually, or with a Hex Allen Bit or Key
  • Cylindrical head
  • 18-8 Stainless Steel offer the Fastener Industry standard for corrosion and rust resistance
  • Recommended for use in exterior applications, or those that are exposed to fresh water moisture
The term socket head cap screw typically refers to a type of threaded fastener whose head diameter is nominally 1.5 times or more that of the screw shank (major) diameter.

Sizes Listed As:
Diameter - Thread Pitch x Length from Underside of Head
FT = Full Thread
PT = Partial Thread

Product number: 37042
Print this page
Click on a size/sku in the table to view product-specific details and specifications.
FT = Full Thread (threaded the entire length)  ·  PT = Partial Thread (unthreaded shoulder below the head)

Specifications

  • Chamfer on Radius: Max 0.010
  • Color: Silver
  • Condition: New
  • Corrosion Resistant: Yes
  • Diameter: 1/2"
  • Drive Style: Internal Hex (Allen)
  • Head Type: Socket Head
  • Thread Direction: Right Hand
  • Thread Type: Fine
  • Fit: 3A
  • FT = Full Thread: Yes
  • Grade: 18-8
  • Head Height Max: 0.5
  • Head Diameter: Max 0.750 - Min 0.735
  • Head Side Height: Max 0.450
  • Head Style: Socket Cap
  • Hex Drive: 3/8"
  • Length: 1-1/2
  • Material: Stainless Steel
  • Overall Head Height: Max 0.500 - Min 0.492
  • Part Number: 618930306460
  • Product Type: Socket Cap Screws
  • Size System: US
  • Size Type: Regular
  • System of Measurement: Inch
  • Thread Direction: Right Hand
  • Thread Pitch: 20 Per Inch
  • Thread Size: 1/2"-20
  • Thread Standard: UNF
  • Thread Type: Fine
  • Tolerance (IFI): Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
  • Weight: 1 lb

Frequently Used With

Flat Washers, Stainless Steel 304, 1/2" (.531 ID x 1-1/4 OD x .062 Thick) Flat Washers, Stainless Steel 304, 1/2" (.531 ID x 1-1/4 OD x .062 Thick)
Volume Pricing*
1
$0.28
($0.28/ea)
100
$16.00
($0.16/ea)
1000
$140.00
($0.14/ea)
$0.00
Lock Washers, Split Ring, Stainless Steel 304, 1/2" (.502 ID x .869 OD x .125 Thick) Lock Washers, Split Ring, Stainless Steel 304, 1/2" (.502 ID x .869 OD x .125 Thick)
Volume Pricing*
1
$0.28
($0.28/ea)
100
$20.00
($0.20/ea)
1000
$180.00
($0.18/ea)
$0.00
Hex Finish Nuts, Stainless Steel 304, 1/2"-20 (3/4" Flats x 7/16" Thick) Hex Finish Nuts, Stainless Steel 304, 1/2"-20 (3/4" Flats x 7/16" Thick)
Volume Pricing*
1
$0.47
($0.47/ea)
100
$34.00
($0.34/ea)
1000
$290.00
($0.29/ea)
$0.00
Nylon Lock Nuts, Stainless Steel 304, 1/2-20 (.752 Flats x .609 Height) Nylon Lock Nuts, Stainless Steel 304, 1/2-20 (.752 Flats x .609 Height)
Volume Pricing*
1
$0.87
($0.87/ea)
100
$74.00
($0.74/ea)
1000
$640.00
($0.64/ea)
$0.00
Hex Allen Key, Long Arm, Black Alloy Steel, 3/8" Hex Allen Key, Long Arm, Black Alloy Steel, 3/8"
Volume Pricing*
1
$1.89
($1.89/ea)
100
$182.00
($1.82/ea)
1000
$1,760.00
($1.76/ea)
$0.00
Hex Allen Key, Short Arm, Black Alloy Steel, 3/8" Hex Allen Key, Short Arm, Black Alloy Steel, 3/8"
Volume Pricing*
1
$1.71
($1.71/ea)
100
$161.00
($1.61/ea)
1000
$1,510.00
($1.51/ea)
$0.00
Select Size/SKU & Quantity
16 Available Sizes
SIZE/SKU Review Volume Pricing* Enter Any Qty
1/2"-20 x 3/4" FT
37002
1
$2.38 ($2.38/ea)
100
$195.00 ($1.95/ea)
1000
$1,720.00 ($1.72/ea)
$0.00
1/2"-20 x 7/8" FT
37012
1
$5.12 ($5.12/ea)
100
$471.00 ($4.71/ea)
1000
$4,680.00 ($4.68/ea)
$0.00
1/2"-20 x 1" FT
37022
1
$2.49 ($2.49/ea)
100
$205.00 ($2.05/ea)
1000
$1,790.00 ($1.79/ea)
$0.00
1/2"-20 x 1-1/4" FT
37032
1
$2.63 ($2.63/ea)
100
$213.00 ($2.13/ea)
1000
$1,860.00 ($1.86/ea)
$0.00
1/2"-20 x 1-1/2" FT
37042
1
$2.78 ($2.78/ea)
100
$228.00 ($2.28/ea)
1000
$1,990.00 ($1.99/ea)
$0.00
1/2"-20 x 1-3/4" FT
37052
1
$3.36 ($3.36/ea)
100
$279.00 ($2.79/ea)
1000
$2,430.00 ($2.43/ea)
$0.00
1/2"-20 x 2" FT
37062
1
$3.70 ($3.70/ea)
100
$306.00 ($3.06/ea)
1000
$2,670.00 ($2.67/ea)
$0.00
1/2"-20 x 2-1/4" PT
37072
1
$4.15 ($4.15/ea)
100
$384.00 ($3.84/ea)
1000
$3,800.00 ($3.80/ea)
$0.00
1/2"-20 x 2-1/2" PT
37082
1
$4.43 ($4.43/ea)
100
$364.00 ($3.64/ea)
1000
$3,180.00 ($3.18/ea)
$0.00
1/2"-20 x 3" PT
37092
1
$4.68 ($4.68/ea)
100
$386.00 ($3.86/ea)
1000
$3,370.00 ($3.37/ea)
$0.00
1/2"-20 x 3-1/4" PT
37102
1
$8.29 ($8.29/ea)
100
$762.00 ($7.62/ea)
1000
$7,590.00 ($7.59/ea)
$0.00
1/2"-20 x 3-1/2" PT
37112
1
$8.25 ($8.25/ea)
100
$691.00 ($6.91/ea)
1000
$6,030.00 ($6.03/ea)
$0.00
1/2"-20 x 4" PT
37122
1
$11.90 ($11.90/ea)
100
$985.00 ($9.85/ea)
1000
$8,600.00 ($8.60/ea)
$0.00
1/2"-20 x 4-1/2" PT
37132
1
$17.25 ($17.25/ea)
100
$1,399.00 ($13.99/ea)
1000
$12,220.00 ($12.22/ea)
$0.00
1/2"-20 x 5" PT
37142
1
$21.07 ($21.07/ea)
100
$1,797.00 ($17.97/ea)
1000
$15,680.00 ($15.68/ea)
$0.00
1/2"-20 x 6" PT
37152
1
$22.32 ($22.32/ea)
100
$1,920.00 ($19.20/ea)
1000
$17,080.00 ($17.08/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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