Hoses-Grommets-&-Clamps > Wire-Grommets

Locking Dome Plugs - 5/16"-1/2" Mounting Hole

Wire Locking Plugs

Locking dome plugs are used to temporarily or permanently close unused panel holes and knockouts. They are made from a Nylon 6/6 material. Available plugs range from a 5/16" mounting hole diameter up to a 2" mounting hole diameter. Dome plugs also have multiple locking steps to cover different panel thicknesses. Available plugs will fit up to a 0.125" thick panel. Plug heads are convex and thin to the edges. Approximate head thickness is 0.062" (may vary).


  • Quick & easy installation.
  • Nylon 6/6 material.
  • Mounting Hole Dia Range: 5/16" - 2".
  • Multiple locking positions for panel thickness up to 0.125".
  • Flammability Rating: 94V-2.
  • Temperature Rating: -40°F to 221°F (-40°C to 105°C).
  • Click here to view the Locking Dome Plug Size Chart
Item Description Price
1+ I 1000+ I 5000+
Qty in
Package 		In Stock Add to Cart
5053 Locking Dome Plug, 5/16" Mounting Hole Dia (100 MIN)
0.06930 I 0.06210 I 0.04780
100 EA ✓
5054 Locking Dome Plug, 3/8" Mounting Hole Dia (100 MIN)
0.05780 I 0.05170 I 0.03990
100 EA ✓
5055 Locking Dome Plug, 7/16" Mounting Hole Dia (100 MIN)
0.06570 I 0.05650 I 0.04100
100 EA ✓
5056 Locking Dome Plug, 1/2" Mounting Hole Dia (100 MIN)
0.06940 I 0.05900 I 0.04200
100 EA ✓

Locking Dome Plugs - 9/16"-3/4" Mounting Hole

Locking Plugs

Locking dome plugs are used to temporarily or permanently close unused panel holes and knockouts. They are made from a Nylon 6/6 material. Available plugs range from a 5/16" mounting hole diameter up to a 2" mounting hole diameter. Dome plugs also have multiple locking steps to cover different panel thicknesses. Available plugs will fit up to a 0.125" thick panel. Plug heads are convex and thin to the edges. Approximate head thickness is 0.062" (may vary).


  • Quick & easy installation.
  • Nylon 6/6 material.
  • Mounting Hole Dia Range: 5/16" - 2".
  • Multiple locking positions for panel thickness up to 0.125".
  • Flammability Rating: 94V-2.
  • Temperature Rating: -40°F to 221°F (-40°C to 105°C).
  • Click here to view the Locking Dome Plug Size Chart
Item Description Price
1+ I 1000+ I 5000+
Qty in
Package 		In Stock Add to Cart
5057 Locking Dome Plug, 9/16" Mounting Hole Dia (100 MIN)
0.08770 I 0.07850 I 0.06050
100 EA ✓
5058 Locking Dome Plug, 5/8" Mounting Hole Dia (100 MIN)
0.09240 I 0.08180 I 0.06200
100 EA ✓
5059 Locking Dome Plug, 11/16" Mounting Hole Dia (100 MIN)
0.13250 I 0.11860 I 0.09150
100 EA ✓
5060 Locking Dome Plug, 3/4" Mounting Hole Dia (100 MIN)
0.13920 I 0.12470 I 0.09610
100 EA ✓

Locking Dome Plugs - 13/16"-1 1/8" Mounting Hole

Wire Locking Plugs

Locking dome plugs are used to temporarily or permanently close unused panel holes and knockouts. They are made from a Nylon 6/6 material. Available plugs range from a 5/16" mounting hole diameter up to a 2" mounting hole diameter. Dome plugs also have multiple locking steps to cover different panel thicknesses. Available plugs will fit up to a 0.125" thick panel. Plug heads are convex and thin to the edges. Approximate head thickness is 0.062" (may vary).


  • Quick & easy installation.
  • Nylon 6/6 material.
  • Mounting Hole Dia Range: 5/16" - 2".
  • Multiple locking positions for panel thickness up to 0.125".
  • Flammability Rating: 94V-2.
  • Temperature Rating: -40°F to 221°F (-40°C to 105°C).
  • Click here to view the Locking Dome Plug Size Chart
Item Description Price
1+ I 1000+ I 5000+
Qty in
Package 		In Stock Add to Cart
5061 Locking Dome Plug, 13/16" Mounting Hole Dia (100 MIN)
0.15060 I 0.13490 I 0.10400
100 EA ✓
5062 Locking Dome Plug, 7/8" Mounting Hole Dia (100 MIN)
0.15380 I 0.13780 I 0.10620
100 EA ✓
5066 Locking Dome Plug, 1" Mounting Hole Dia (100 MIN)
0.15590 I 0.13970 I 0.10760
100 EA ✓
5067 Locking Dome Plug, 1-1/8" Mounting Hole Dia (100 MIN)
0.16460 I 0.14740 I 0.11360
100 EA ✓

Locking Dome Plugs - 1 3/8"-2" Mounting Hole

Wire Locking Plugs

Locking dome plugs are used to temporarily or permanently close unused panel holes and knockouts. They are made from a Nylon 6/6 material. Available plugs range from a 5/16" mounting hole diameter up to a 2" mounting hole diameter. Dome plugs also have multiple locking steps to cover different panel thicknesses. Available plugs will fit up to a 0.125" thick panel. Plug heads are convex and thin to the edges. Approximate head thickness is 0.062" (may vary).


  • Quick & easy installation.
  • Nylon 6/6 material.
  • Mounting Hole Dia Range: 5/16" - 2".
  • Multiple locking positions for panel thickness up to 0.125".
  • Flammability Rating: 94V-2.
  • Temperature Rating: -40°F to 221°F (-40°C to 105°C).
  • Click here to view the Locking Dome Plug Size Chart
Item Description Price
1+ I 1000+ I 5000+
Qty in
Package 		In Stock Add to Cart
5068 Locking Dome Plug, 1-3/8" Mounting Hole Dia (100 MIN)
0.18050 I 0.16170 I 0.12450
100 EA ✓
5069 Locking Dome Plug, 1-1/2" Mounting Hole Dia (100 MIN)
0.24470 I 0.21910 I 0.16880
100 EA ✓
5071 Locking Dome Plug, 2" Mounting Hole Dia (100 MIN)
0.35650 I 0.31930 I 0.24590
100 EA ✓

Locking Dome Plugs - Clearance

Locking Plugs

Locking dome plugs are used to temporarily or permanently close unused panel holes and knockouts. They are made from a Nylon 6/6 material. Available plugs range from a 5/16" mounting hole diameter up to a 2" mounting hole diameter. Dome plugs also have multiple locking steps to cover different panel thicknesses. Available plugs will fit up to a 0.125" thick panel. Plug heads are convex and thin to the edges. Approximate head thickness is 0.062" (may vary).


  • Quick & easy installation.
  • Nylon 6/6 material.
  • Mounting Hole Dia Range: 5/16" - 2".
  • Multiple locking positions for panel thickness up to 0.125".
  • Flammability Rating: 94V-2.
  • Temperature Rating: -40°F to 221°F (-40°C to 105°C).
  • Click here to view the Locking Dome Plug Size Chart
Item Description Price
1+ I 1000+ I 5000+
Qty in
Package 		In Stock Add to Cart
5070 **OBSOLETE** Locking Dome Plug, 1-3/4" Mounting Hole Dia (100 MIN) (LIMITED QUANTITY) Sale Price: 0.11730
0.31570 I 0.28280 I 0.21790
100 EA Call
Prop65 Warning