#40 Deep-Well Tri-Groove Installation Socket Tool – 2" Long

from $55.00

Install and remove compatible Tri-Groove security nuts in recessed or hard-to-reach locations with this #40 deep-well Tri-Groove socket.

The extended 2-inch-long body provides additional reach compared with a standard #40 socket, making it useful when the fastener is located on a longer stud or inside a recessed opening. Its three internal drive tabs engage the matching grooves of compatible #40 Tri-Groove security nuts.

Made from durable steel with a bright plated finish for professional installation and maintenance applications.

Compatible Thread Sizes

  • 1/2”-13

  • M12 × 1.75

  • M14 × 2.0

Compatible with corresponding Tri-Groove security nuts.

Product Details

  • Socket size: #40 Tri-Groove

  • Style: Deep-well installation socket

  • Overall length: 2 inches

  • Outside diameter: approximately 1.20 inches

  • Material: Steel

  • Finish: Bright plated finish

  • Designed for installation and authorized removal

  • Provides additional reach for recessed fasteners and longer threaded studs

  • Compatible with select 1/2"-13, M12 and M14 #40 Tri-Groove nuts

  • Security nuts are sold separately

Important Note

Compatibility is determined by the Tri-Groove drive size, not thread size alone. Confirm that your nut uses the #40 Tri-Groove pattern before ordering.

✓ Volume Discounts Available

Multiple technicians? Save when purchasing 2, 3, or 4 installation sockets for your maintenance team or service vehicles.

Quantity Pack:

Install and remove compatible Tri-Groove security nuts in recessed or hard-to-reach locations with this #40 deep-well Tri-Groove socket.

The extended 2-inch-long body provides additional reach compared with a standard #40 socket, making it useful when the fastener is located on a longer stud or inside a recessed opening. Its three internal drive tabs engage the matching grooves of compatible #40 Tri-Groove security nuts.

Made from durable steel with a bright plated finish for professional installation and maintenance applications.

Compatible Thread Sizes

  • 1/2”-13

  • M12 × 1.75

  • M14 × 2.0

Compatible with corresponding Tri-Groove security nuts.

Product Details

  • Socket size: #40 Tri-Groove

  • Style: Deep-well installation socket

  • Overall length: 2 inches

  • Outside diameter: approximately 1.20 inches

  • Material: Steel

  • Finish: Bright plated finish

  • Designed for installation and authorized removal

  • Provides additional reach for recessed fasteners and longer threaded studs

  • Compatible with select 1/2"-13, M12 and M14 #40 Tri-Groove nuts

  • Security nuts are sold separately

Important Note

Compatibility is determined by the Tri-Groove drive size, not thread size alone. Confirm that your nut uses the #40 Tri-Groove pattern before ordering.

✓ Volume Discounts Available

Multiple technicians? Save when purchasing 2, 3, or 4 installation sockets for your maintenance team or service vehicles.

Frequently Bought Together
5/16-18 Tri-Groove Tamper-Resistant Security Nuts Two 5/16-18 Zamak 5 Tri-Groove tamper-resistant security nuts Five 5/16-18 Zamak 5 Tri-Groove tamper-resistant security nuts Eight 5/16-18 Zamak 5 Tri-Groove tamper-resistant security nuts Twelve 5/16-18 Zamak 5 Tri-Groove tamper-resistant security nuts Twenty-five 5/16-18 Zamak 5 Tri-Groove tamper-resistant security nuts Fifty 5/16-18 Zamak 5 Tri-Groove tamper-resistant security nuts One hundred 5/16-18 Zamak 5 Tri-Groove tamper-resistant security nuts
Pack Quantity:
3/8"-16 Tri-Groove Tamper-Resistant Security Nuts Two 3/8-16 Zamak Tri-Groove tamper-resistant security nuts Five 3/8-16 Zamak Tri-Groove tamper-resistant security nuts Eight 3/8-16 Zamak Tri-Groove tamper-resistant security nuts Twelve 3/8-16 Zamak Tri-Groove tamper-resistant security nuts Twenty-five 3/8-16 Zamak Tri-Groove tamper-resistant security nuts Fifty 3/8-16 Zamak Tri-Groove tamper-resistant security nuts One hundred 3/8-16 Zamak Tri-Groove tamper-resistant security nuts
Quantity:
M8- 1.25 Tri-Groove Tamper-Resistant Security Nuts Two M8-1.25 Zamak 5 Tri-Groove tamper-resistant security nuts Five M8-1.25 Zamak 5 Tri-Groove tamper-resistant security nuts Eight M8-1.25 Zamak 5 Tri-Groove tamper-resistant security nuts Twelve M8-1.25 Zamak 5 Tri-Groove tamper-resistant security nuts Twenty-five M8-1.25 Zamak 5 Tri-Groove tamper-resistant security nuts Fifty M8-1.25 Zamak 5 Tri-Groove tamper-resistant security nuts One hundred M8-1.25 Zamak 5 Tri-Groove tamper-resistant security nuts
Pack Quantity:

Frequently Asked Questions