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Nylon Insert Lock Nuts 316 Stainless Steel

316 Stainless Steel Nylon Insert Hex Lock Nuts

Lock Nut with a Nylon Insert in Corrosion Resistant 316 Stainless Steel

  • Hexagonal shape Nylon Lock Nut
  • Nylon material creates pressure against the fastener
  • Forces the bottom threads of the fastener against the top threads of the bolt
  • UNC and UNF Sizes Available
  • Locks the nut into place so it will not vibrate loose
  • Retain locking ability up to 250 °F (121 °C)
  • Also referred to as Nylon Lock Nuts, Nyloc Nuts, Polymer-Insert Lock Nuts, or Elastic Stop Nuts
  • Marine Grade 316 Stainless Steel

Reference Materials

US Nylon Inserted Hex Lock Nut Size Chart

US Nylon Inserted Hex Lock Nut Size Chart (PDF) - Print Friendly, 176Kb

To prevent or stop galling (also known as seizing or locking-up) on stainless steel fasteners, we recommend using an anti-seize thread lubricant from our line of
MRO Solutions

Stainless Steel fasteners rubbing against each other (during installation) may cause a reaction known as Galling. The chance of galling increases significantly when a nylon insert is added to the nut. To limit the extra friction created by the nylon insert, 316 Stainless Steel Waxed Nylon Insert Lock Nuts are also available.

*Even when using Waxed Nylon Insert Lock Nuts, we still recommend using an MRO Anti-Seize Solution to further deter thread galling during any stainless steel fastener installation.

Nylon Insert
Lock Nut Size 		Width Across Flats Height / Thickness
#4 0.251" 0.153"
#6 0.313" 0.188"
#8 0.345" 0.239"
#10 0.376" 0.249"
#12 0.439" 0.328"
1/4" 0.439" 0.328"
5/16" 0.502" 0.359"
3/8" 0.563" 0.468"
7/16" 0.627" 0.468"
1/2" 0.752" 0.609"
9/16"
0.877" 0.656"
5/8" 0.940" 0.765"
3/4" 1.064" 0.890"
7/8" 1.252" 0.999"
1" 1.44" 1.078"
Select Products Below See Product Specifications
NA = "Not Sold In Single Quantity"

Size
Select Package Quantity
SubTotal
Nylon Lock Nuts 316 SS - #4-40 (251" Flats x .081" Thick)
SKU #1061-100000-0001
Nylon Lock Nuts 316 SS - #4-40 (251" Flats x .081" Thick)
SKU #1061-100000-0001
1
 $0.07 (0.07/ea)
100
 $9.00 (0.09/ea)
1000
 $70.00 (0.07/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - #4-48 (251" Flats x .081" Thick)
SKU #1061-100000-0012
Nylon Lock Nuts 316 SS - #4-48 (251" Flats x .081" Thick)
SKU #1061-100000-0012
1
 $0.11 (0.11/ea)
100
 $8.00 (0.08/ea)
1000
 $70.00 (0.07/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - #6-32 (313" Flats x .103" Thick)
SKU #1061-100000-0022
Nylon Lock Nuts 316 SS - #6-32 (313" Flats x .103" Thick)
SKU #1061-100000-0022
1
 $0.11 (0.11/ea)
100
 $9.00 (0.09/ea)
1000
 $80.00 (0.08/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - #6-40 (313" Flats x .103" Thick)
SKU #1061-100000-0032
Nylon Lock Nuts 316 SS - #6-40 (313" Flats x .103" Thick)
SKU #1061-100000-0032
1
 $0.11 (0.11/ea)
100
 $10.00 (0.1/ea)
1000
 $90.00 (0.09/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - #8-32 (345" Flats x .140" Thick)
SKU #1061-100000-0042
Nylon Lock Nuts 316 SS - #8-32 (345" Flats x .140" Thick)
SKU #1061-100000-0042
1
 $0.14 (0.14/ea)
100
 $11.00 (0.11/ea)
1000
 $100.00 (0.1/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - #8-36 (345" Flats x .140" Thick)
SKU #1061-100000-0052
Nylon Lock Nuts 316 SS - #8-36 (345" Flats x .140" Thick)
SKU #1061-100000-0052
1
 $0.14 (0.14/ea)
100
 $12.00 (0.12/ea)
1000
 $100.00 (0.1/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - #10-24 (376" Flats x .140" Thick)
SKU #1061-100000-0062
Nylon Lock Nuts 316 SS - #10-24 (376" Flats x .140" Thick)
SKU #1061-100000-0062
1
 $0.16 (0.16/ea)
100
 $13.00 (0.13/ea)
1000
 $100.00 (0.1/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - #10-32 (376" Flats x .140" Thick)
SKU #1061-100000-0072
Nylon Lock Nuts 316 SS - #10-32 (376" Flats x .140" Thick)
SKU #1061-100000-0072
1
 $0.16 (0.16/ea)
100
 $13.00 (0.13/ea)
1000
 $100.00 (0.1/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - #12-24 (439" Flats x .225" Thick)
SKU #1061-100000-0082
Nylon Lock Nuts 316 SS - #12-24 (439" Flats x .225" Thick)
SKU #1061-100000-0082
1
 $0.18 (0.18/ea)
100
 $15.00 (0.15/ea)
1000
 $120.00 (0.12/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - #12-28 (439" Flats x .225" Thick)
SKU #1061-100000-0092
Nylon Lock Nuts 316 SS - #12-28 (439" Flats x .225" Thick)
SKU #1061-100000-0092
1
 $0.18 (0.18/ea)
100
 $17.00 (0.17/ea)
1000
 $160.00 (0.16/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 1/4"-20 (439" Flats x .328" Thick)
SKU #1061-100000-0102
Nylon Lock Nuts 316 SS - 1/4"-20 (439" Flats x .328" Thick)
SKU #1061-100000-0102
1
 $0.21 (0.21/ea)
100
 $18.00 (0.18/ea)
1000
 $160.00 (0.16/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 1/4"-28 (439" Flats x .328" Thick)
SKU #1061-100000-0112
Nylon Lock Nuts 316 SS - 1/4"-28 (439" Flats x .328" Thick)
SKU #1061-100000-0112
1
 $0.28 (0.28/ea)
100
 $24.00 (0.24/ea)
1000
 $200.00 (0.2/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 5/16"-18 (502" Flats x .250" Thick)
SKU #1061-100000-0122
Nylon Lock Nuts 316 SS - 5/16"-18 (502" Flats x .250" Thick)
SKU #1061-100000-0122
1
 $0.30 (0.3/ea)
100
 $26.00 (0.26/ea)
1000
 $220.00 (0.22/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 5/16"-24 (502" Flats x .250" Thick)
SKU #1061-100000-0132
Nylon Lock Nuts 316 SS - 5/16"-24 (502" Flats x .250" Thick)
SKU #1061-100000-0132
1
 $0.32 (0.32/ea)
100
 $28.00 (0.28/ea)
1000
 $240.00 (0.24/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 3/8"-16 (563" Flats x .335" Thick)
SKU #1061-100000-0142
Nylon Lock Nuts 316 SS - 3/8"-16 (563" Flats x .335" Thick)
SKU #1061-100000-0142
1
 $0.42 (0.42/ea)
100
 $35.00 (0.35/ea)
1000
 $300.00 (0.3/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 3/8"-24 (563" Flats x .335" Thick)
SKU #1061-100000-0152
Nylon Lock Nuts 316 SS - 3/8"-24 (563" Flats x .335" Thick)
SKU #1061-100000-0152
1
 $0.45 (0.45/ea)
100
 $38.00 (0.38/ea)
1000
 $330.00 (0.33/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 7/16"-14 (627" Flats x .324" Thick)
SKU #1061-100000-0162
Nylon Lock Nuts 316 SS - 7/16"-14 (627" Flats x .324" Thick)
SKU #1061-100000-0162
1
 $0.75 (0.75/ea)
100
 $64.00 (0.64/ea)
1000
 $550.00 (0.55/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 7/16"-20 (627" Flats x .324" Thick)
SKU #1061-100000-0172
Nylon Lock Nuts 316 SS - 7/16"-20 (627" Flats x .324" Thick)
SKU #1061-100000-0172
1
 $0.74 (0.74/ea)
100
 $63.00 (0.63/ea)
1000
 $540.00 (0.54/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 1/2"-13 (752" Flats x .464" Thick)
SKU #1061-100000-0182
Nylon Lock Nuts 316 SS - 1/2"-13 (752" Flats x .464" Thick)
SKU #1061-100000-0182
1
 $0.84 (0.84/ea)
100
 $70.00 (0.7/ea)
1000
 $620.00 (0.62/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 1/2"-20 (752" Flats x .464" Thick)
SKU #1061-100000-0192
Nylon Lock Nuts 316 SS - 1/2"-20 (752" Flats x .464" Thick)
SKU #1061-100000-0192
1
 $1.16 (1.16/ea)
100
 $98.00 (0.98/ea)
1000
 $850.00 (0.85/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 9/16"-18 (.877 Flats x .656 Height)
SKU #1061-100000-0200-02
Nylon Lock Nuts 316 SS - 9/16"-18 (.877 Flats x .656 Height)
SKU #1061-100000-0200-02
1
 $2.89 (2.89/ea)
100
 $248.00 (2.48/ea)
1000
 $2,280.00 (2.28/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 5/8"-11 (940" Flats x .593" Thick)
SKU #1061-100000-0202
Nylon Lock Nuts 316 SS - 5/8"-11 (940" Flats x .593" Thick)
SKU #1061-100000-0202
1
 $2.69 (2.69/ea)
100
 $228.00 (2.28/ea)
1000
 $1,990.00 (1.99/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 5/8"-18 (940" Flats x .593" Thick)
SKU #1061-100000-0212
Nylon Lock Nuts 316 SS - 5/8"-18 (940" Flats x .593" Thick)
SKU #1061-100000-0212
1
 $2.85 (2.85/ea)
100
 $241.00 (2.41/ea)
1000
 $2,090.00 (2.09/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 3/4"-10 (1.064" Flats x .742" Thick)
SKU #1061-100000-0222
Nylon Lock Nuts 316 SS - 3/4"-10 (1.064" Flats x .742" Thick)
SKU #1061-100000-0222
1
 $3.06 (3.06/ea)
100
 $259.00 (2.59/ea)
1000
 $2,230.00 (2.23/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 3/4"-16 (1.064" Flats x .742" Thick)
SKU #1061-100000-0232
Nylon Lock Nuts 316 SS - 3/4"-16 (1.064" Flats x .742" Thick)
SKU #1061-100000-0232
1
 $3.67 (3.67/ea)
100
 $391.00 (3.91/ea)
1000
 $3,520.00 (3.52/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 7/8"-9 (1.252" Flats x .790" Thick)
SKU #1061-100000-0242
Nylon Lock Nuts 316 SS - 7/8"-9 (1.252" Flats x .790" Thick)
SKU #1061-100000-0242
1
 $8.57 (8.57/ea)
100
 $837.00 (8.37/ea)
1000
 $8,170.00 (8.17/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 7/8"-14 (1.252" Flats x .790" Thick)
SKU #1061-100000-0252
Nylon Lock Nuts 316 SS - 7/8"-14 (1.252" Flats x .790" Thick)
SKU #1061-100000-0252
1
 $9.57 (9.57/ea)
100
 $935.00 (9.35/ea)
1000
 $9,150.00 (9.15/ea)
Subtotal: $0.00 /
Nylon Lock Nuts 316 SS - 1"-8 (1.444" Flats x .825" Thick)
SKU #1061-100000-0262
Nylon Lock Nuts 316 SS - 1"-8 (1.444" Flats x .825" Thick)
SKU #1061-100000-0262
1
 $15.22 (15.22/ea)
100
 $1,412.00 (14.12/ea)
1000
 $12,680.00 (12.68/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
316
Marine Grade
Yes
Material
Stainless Steel
Product Type
Nylon Insert Lock Nut
System of Measurement (Unit)
Inch
Thread Direction
Right 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.