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Hex Jam Nuts, Left Hand Thread, Stainless Steel 18-8, 1/4"-20 (7/16" Flats x 5/32" Thick)

Left Hand Thread Hex Check Nuts (Thin Nuts) - 304 Stainless Steel

  • Similar to a finish nut but thinner allowing the nut to "jam"
  • Known as a Check Nut, Jam Nut, or Thin Nut
  • Left Hand Threaded (Counterclockwise)
  • UNC Coarse and UNF thread options available
  • Available in UNC coarse or fine UNF thread
  • Used when a nut needs to be tightened without clamping to another object
  • Two nuts are tightened against each other
  • 304 Stainless Steel
  • Distinguished by a counterclockwise arrow stamped on the nut

Reference Materials
US Machine Screw Hex Nut Size Chart (PDF) Thumbnail

US Hex Jam Nut Size Chart (PDF) - Print Friendly, 100Kb

Nut Sizes Flats Thickness
1/4" 7/16" 5/32"
5/16" 1/2" 3/16"
3/8" 9/16" 7/32"
1/2" 3/4" 5/16"
5/8" 15/16" 3/8"
3/4" 1-1/8" 27/64"
Product number: 1250000-0002
Print this page
Click on a size/sku in the table to view product-specific details and specifications.

Specifications

  • Across Flats (Width): 7/16"
  • Color (Duplicate): Silver
  • Color: Silver
  • Condition: New
  • Corrosion Resistant: Yes
  • Diameter: 1/4"
  • Drive Style: External Hex
  • Thread Direction: Left Hand
  • Fit: 2B
  • Grade: 18-8
  • Internal Thread: 1/4/2020
  • Material (Duplicate): 18-8 Stainless Steel
  • Material: Stainless Steel
  • Part Number: 717029141347
  • Pattern: 1/4-20 Left Hand Jam Nuts
  • Product Type: Hex Jam Nut - Left Hand Thread
  • Size: 1/4"-20
  • Size System: US
  • Size Type: Regular
  • System of Measurement: Inch
  • Thread Direction: Left Hand
  • Thread Pitch: 20 Per Inch
  • Thread Size: 1/4"-20
  • Thread Standard: UNC
  • Thread Type: Coarse
  • Tolerance (IFI): Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
  • Weight: 1 lb

Frequently Used With

Bolts, Screws & Nuts Gauge Bolts, Screws & Nuts Gauge
Volume Pricing*
$9.00 ea.
$0.00
MRO Solution 2400, Marine Grade Anti-Seize Lubricant, 8 oz. MRO Solution 2400, Marine Grade Anti-Seize Lubricant, 8 oz.
Volume Pricing*
$20.03 ea.
$0.00
3/8" Drive Standard SAE 6 Point Drive Sockets, 7/16" 3/8" Drive Standard SAE 6 Point Drive Sockets, 7/16"
Volume Pricing*
$3.98 ea.
$0.00
Select Size/SKU & Quantity
12 Available Sizes
SIZE/SKU Review Volume Pricing* Enter Any Qty
1/4"-20
1250000-0002
1
$0.54 ($0.54/ea)
100
$37.00 ($0.37/ea)
1000
$340.00 ($0.34/ea)
$0.00
1/4"-28
1250000-0012
1
$0.63 ($0.63/ea)
100
$45.00 ($0.45/ea)
1000
$410.00 ($0.41/ea)
$0.00
5/16"-18
1250000-0022
1
$0.69 ($0.69/ea)
100
$47.00 ($0.47/ea)
1000
$430.00 ($0.43/ea)
$0.00
5/16"-24
1250000-0032
1
$0.91 ($0.91/ea)
100
$63.00 ($0.63/ea)
1000
$580.00 ($0.58/ea)
$0.00
3/8"-16
1250000-0042
1
$1.11 ($1.11/ea)
100
$74.00 ($0.74/ea)
1000
$680.00 ($0.68/ea)
$0.00
3/8"-24
1250000-0052
1
$1.28 ($1.28/ea)
100
$90.00 ($0.90/ea)
1000
$820.00 ($0.82/ea)
$0.00
1/2"-13
1250000-0062
1
$2.71 ($2.71/ea)
100
$183.00 ($1.83/ea)
1000
$1,680.00 ($1.68/ea)
$0.00
1/2"-20
1250000-0072
1
$3.04 ($3.04/ea)
100
$212.00 ($2.12/ea)
1000
$1,940.00 ($1.94/ea)
$0.00
5/8"-11
1250000-0082
1
$14.23 ($14.23/ea)
100
$959.00 ($9.59/ea)
1000
$8,800.00 ($8.80/ea)
$0.00
5/8"-18
1250000-0092
1
$17.60 ($17.60/ea)
100
$1,198.00 ($11.98/ea)
1000
$11,000.00 ($11.00/ea)
$0.00
3/4"-10
1250000-0102
1
$25.66 ($25.66/ea)
100
$1,911.00 ($19.11/ea)
1000
$17,540.00 ($17.54/ea)
$0.00
3/4"-16
1250000-0112
1
$27.38 ($27.38/ea)
100
$2,142.00 ($21.42/ea)
1000
$19,720.00 ($19.72/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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