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Hex Jam Nuts 18-8 Stainless Steel - Left Hand Thread

Stainless Steel Left Hand Jam Nuts

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"
Select Products Below See Product Specifications
NA = "Not Sold In Single Quantity"

Size
Select Package Quantity
SubTotal
Jam Nuts - Left Hand Thread - 1/4"-20 (7/16" Flats x 5/32" Thick)
SKU #1250000-0002
Jam Nuts - Left Hand Thread - 1/4"-20 (7/16" Flats x 5/32" Thick)
SKU #1250000-0002
1
 $0.54 (0.54/ea)
100
 $37.00 (0.37/ea)
1000
 $340.00 (0.34/ea)
Subtotal: $0.00 /
Jam Nuts - Left Hand Thread - 1/4"-28 (7/16" Flats x 5/32" Thick)
SKU #1250000-0012
Jam Nuts - Left Hand Thread - 1/4"-28 (7/16" Flats x 5/32" Thick)
SKU #1250000-0012
1
 $0.63 (0.63/ea)
100
 $45.00 (0.45/ea)
1000
 $410.00 (0.41/ea)
Subtotal: $0.00 /
Jam Nuts - Left Hand Thread - 5/16"-18 (1/2" Flats x 3/16" Thick)
SKU #1250000-0022
Jam Nuts - Left Hand Thread - 5/16"-18 (1/2" Flats x 3/16" Thick)
SKU #1250000-0022
1
 $0.69 (0.69/ea)
100
 $47.00 (0.47/ea)
1000
 $430.00 (0.43/ea)
Subtotal: $0.00 /
Jam Nuts - Left Hand Thread - 5/16"- 24 (1/2" Flats x 3/16" Thick)
SKU #1250000-0032
Jam Nuts - Left Hand Thread - 5/16"- 24 (1/2" Flats x 3/16" Thick)
SKU #1250000-0032
1
 $0.91 (0.91/ea)
100
 $63.00 (0.63/ea)
1000
 $580.00 (0.58/ea)
Subtotal: $0.00 /
Jam Nuts - Left Hand Thread - 3/8"- 16 (9/16" Flats x 7/32" Thick)
SKU #1250000-0042
Jam Nuts - Left Hand Thread - 3/8"- 16 (9/16" Flats x 7/32" Thick)
SKU #1250000-0042
1
 $1.11 (1.11/ea)
100
 $74.00 (0.74/ea)
1000
 $680.00 (0.68/ea)
Subtotal: $0.00 /
Jam Nuts - Left Hand Thread - 3/8"- 24 (9/16" Flats x 7/32" Thick)
SKU #1250000-0052
Jam Nuts - Left Hand Thread - 3/8"- 24 (9/16" Flats x 7/32" Thick)
SKU #1250000-0052
1
 $1.28 (1.28/ea)
100
 $90.00 (0.9/ea)
1000
 $820.00 (0.82/ea)
Subtotal: $0.00 /
Jam Nuts - Left Hand Thread - 1/2"- 13 (3/4" Flats x 5/16" Thick)
SKU #1250000-0062
Jam Nuts - Left Hand Thread - 1/2"- 13 (3/4" Flats x 5/16" Thick)
SKU #1250000-0062
1
 $2.71 (2.71/ea)
100
 $183.00 (1.83/ea)
1000
 $1,680.00 (1.68/ea)
Subtotal: $0.00 /
Jam Nuts - Left Hand Thread - 1/2"- 20 (3/4" Flats x 5/16" Thick)
SKU #1250000-0072
Jam Nuts - Left Hand Thread - 1/2"- 20 (3/4" Flats x 5/16" Thick)
SKU #1250000-0072
1
 $3.04 (3.04/ea)
100
 $212.00 (2.12/ea)
1000
 $1,940.00 (1.94/ea)
Subtotal: $0.00 /
Jam Nuts - Left Hand Thread - 5/8"- 11 (15/16" Flats x 3/8" Thick)
SKU #1250000-0082
Jam Nuts - Left Hand Thread - 5/8"- 11 (15/16" Flats x 3/8" Thick)
SKU #1250000-0082
1
 $14.23 (14.23/ea)
100
 $959.00 (9.59/ea)
1000
 $8,800.00 (8.8/ea)
Subtotal: $0.00 /
Jam Nuts - Left Hand Thread - 5/8"- 18 (15/16" Flats x 3/8" Thick)
SKU #1250000-0092
Jam Nuts - Left Hand Thread - 5/8"- 18 (15/16" Flats x 3/8" Thick)
SKU #1250000-0092
1
 $17.60 (17.6/ea)
100
 $1,198.00 (11.98/ea)
1000
 $11,000.00 (11/ea)
Subtotal: $0.00 /
Jam Nuts - Left Hand Thread - 3/4"- 10 (1-1/8" Flats x 27/64" Thick)
SKU #1250000-0102
Jam Nuts - Left Hand Thread - 3/4"- 10 (1-1/8" Flats x 27/64" Thick)
SKU #1250000-0102
1
 $25.66 (25.66/ea)
100
 $1,911.00 (19.11/ea)
1000
 $17,540.00 (17.54/ea)
Subtotal: $0.00 /
Jam Nuts - Left Hand Thread - 3/4"- 16 (1-1/8" Flats x 27/64" Thick)
SKU #1250000-0112
Jam Nuts - Left Hand Thread - 3/4"- 16 (1-1/8" Flats x 27/64" Thick)
SKU #1250000-0112
1
 $27.38 (27.38/ea)
100
 $2,142.00 (21.42/ea)
1000
 $19,720.00 (19.72/ea)
Subtotal: $0.00 /



FREQUENTLY USED WITH

MRO Solution 2400 - Marine Grade Anti-Seize Lubricant - 8 oz.
MRO Solution 2400 - Marine Grade Anti-Seize Lubricant - 8 oz. 1050-106
MRO Solution 2400 - Marine Grade Anti-Seize Lubricant - 8 oz.
Anti Seize MRO Solution 2400 - 8oz
Prevent Fastener Galling & Locking Up with Anti-Seize Lubricants

Our Price: $18.11
Subtotal: $0.00 /
MRO Solution 1000 - Food Grade Anti-Seize Lubricant - 8 oz.
MRO Solution 1000 - Food Grade Anti-Seize Lubricant - 8 oz. 1050-104
MRO Solution 1000 - Food Grade Anti-Seize Lubricant - 8 oz.
Food Grade Anti Seize MRO Solution 1000 - 8oz
Prevent Fastener Galling & Locking Up with Anti-Seize Lubricants

Our Price: $21.74
Subtotal: $0.00 /
Product Specifications
Color
Silver
Corrosion Resistant
Yes
Drive Style
External Hex
Grade
18-8
Material
Stainless Steel
Product Type
Hex Jam Nut - Left Hand Thread
System of Measurement (Unit)
Inch
Thread Direction
Left Hand
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances

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Volume Pricing: Buy in volume, get a discount. The larger the pack, the lower the cost per piece. Visit the New Site Features Page for additional details.