Nylon Lock Nuts, Yellow Zinc, Grade C

Nylon Lock Nuts, Yellow Zinc, Grade C

Lock Nut with a Nylon Insert in Yellow Zinc Plated 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
  • Also referred to as Nylon Lock Nuts, Nyloc Nuts, Polymer-Insert Lock Nuts, or Elastic Stop Nuts
  • Locks the nut into place so it will not vibrate loose
  • Retain locking ability up to 250 °F (121 °C)
  • Yellow Zinc Plated Grade C Steel (Grade 8 Equivalent)
  • REACH and RoHS compliant

Reference Materials


US Nylon Inserted Hex Lock Nut Size Chart

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


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/SKU
Select Package Quantity Price
SubTotal
1 $0.15 (0.15/ea)
100 $8.00 (0.08/ea)
1000 $70.00 (0.07/ea)
Subtotal: $0.00 /
1 $0.15 (0.15/ea)
100 $8.00 (0.08/ea)
1000 $70.00 (0.07/ea)
Subtotal: $0.00 /
1 $0.19 (0.19/ea)
100 $11.00 (0.11/ea)
1000 $90.00 (0.09/ea)
Subtotal: $0.00 /
1 $0.19 (0.19/ea)
100 $12.00 (0.12/ea)
1000 $100.00 (0.1/ea)
Subtotal: $0.00 /
1 $0.25 (0.25/ea)
100 $13.00 (0.13/ea)
1000 $110.00 (0.11/ea)
Subtotal: $0.00 /
1 $0.28 (0.28/ea)
100 $16.00 (0.16/ea)
1000 $140.00 (0.14/ea)
Subtotal: $0.00 /
1 $0.32 (0.32/ea)
100 $21.00 (0.21/ea)
1000 $180.00 (0.18/ea)
Subtotal: $0.00 /
1 $0.39 (0.39/ea)
100 $28.00 (0.28/ea)
1000 $240.00 (0.24/ea)
Subtotal: $0.00 /
1 $0.42 (0.42/ea)
100 $30.00 (0.3/ea)
1000 $260.00 (0.26/ea)
Subtotal: $0.00 /
1 $0.48 (0.48/ea)
100 $34.00 (0.34/ea)
1000 $300.00 (0.3/ea)
Subtotal: $0.00 /
1 $0.87 (0.87/ea)
100 $63.00 (0.63/ea)
1000 $540.00 (0.54/ea)
Subtotal: $0.00 /
1 $0.93 (0.93/ea)
100 $68.00 (0.68/ea)
1000 $580.00 (0.58/ea)
Subtotal: $0.00 /
1 $0.84 (0.84/ea)
100 $63.00 (0.63/ea)
1000 $530.00 (0.53/ea)
Subtotal: $0.00 /
1 $1.02 (1.02/ea)
100 $76.00 (0.76/ea)
1000 $650.00 (0.65/ea)
Subtotal: $0.00 /
1 $1.06 (1.06/ea)
100 $83.00 (0.83/ea)
1000 $720.00 (0.72/ea)
Subtotal: $0.00 /
1 $1.35 (1.35/ea)
100 $122.00 (1.22/ea)
1000 $1,030.00 (1.03/ea)
Subtotal: $0.00 /
1 $1.97 (1.97/ea)
100 $160.00 (1.6/ea)
1000 $1,350.00 (1.35/ea)
Subtotal: $0.00 /
1 $2.70 (2.7/ea)
100 $195.00 (1.95/ea)
1000 $1,650.00 (1.65/ea)
Subtotal: $0.00 /
1 $2.85 (2.85/ea)
100 $222.00 (2.22/ea)
1000 $1,900.00 (1.9/ea)
Subtotal: $0.00 /
1 $3.62 (3.62/ea)
100 $265.00 (2.65/ea)
1000 $2,250.00 (2.25/ea)
Subtotal: $0.00 /
1 $5.52 (5.52/ea)
100 $541.00 (5.41/ea)
1000 $5,400.00 (5.4/ea)
Subtotal: $0.00 /
1 $9.67 (9.67/ea)
100 $954.00 (9.54/ea)
1000 $9,520.00 (9.52/ea)
Subtotal: $0.00 /
1-3/8"-12
1-3/8"-12
1 $11.23 (11.23/ea)
100 $1,112.00 (11.12/ea)
1000 $11,090.00 (11.09/ea)
Subtotal: $0.00 /
1 $12.44 (12.44/ea)
100 $1,230.00 (12.3/ea)
1000 $12,260.00 (12.26/ea)
Subtotal: $0.00 /

Product Specifications
Color
Yellow
Drive Style
External Hex
Finish
Yellow Zinc Plated
Grade
C
Material
Steel
Product Type
Nylon Insert Lock Nut
Standards Met
REACH, RoHS
System of Measurement (Unit)
Inch
Thread Direction
Right Hand
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances