These Long-Lok® Ball-Style Spring Plungers with Hex Sockets have bodies, balls & springs made from Steel and feature the Long-Lok® Thread System for securing the plunger in any position within the threaded hole. Long-Lok®: Clockwise insertion into a tapped hole expands the Long-Lok® System in the opposite direction, increasing the resistance and therefore the amount of torque required for loosening.
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Long-Lok® Ball-Style Spring Plungers with Hex Sockets

Long-Lok® M6 Thread Size Ball-Style Spring Plunger with Hex Sockets
Long-Lok® Ball-Style Spring Plungers with Hex Sockets

Long-Lok® 1/4-20 Thread Size Ball-Style Spring Plunger with Hex Sockets
Long-Lok® Ball-Style Spring Plungers with Hex Sockets

Long-Lok® 1/2-13 Thread Size Ball-Style Spring Plunger with Hex Sockets
Long-Lok® Ball-Style Spring Plungers with Hex Sockets

Long-Lok® M8 Thread Size Ball-Style Spring Plunger with Hex Sockets
Long-Lok® Ball-Style Spring Plungers with Hex Sockets

Long-Lok® 1/4-20 Thread Size Ball-Style Spring Plunger with Hex Sockets
Description N/A These Long-Lok® Ball-Style Spring Plungers with Hex Sockets have bodies, balls & springs made from Steel and feature the Long-Lok® Thread System for securing the plunger in any position within the threaded hole. Long-Lok®: Clockwise insertion into a tapped hole expands the Long-Lok® System in the opposite direction, increasing the resistance and therefore the amount of torque required for loosening.
Type N/A Ball
Dimension D N/A M6 N/A 1/4-20 N/A 1/2-13 N/A M8 N/A 1/4-20
Dimension L N/A 15 mm N/A 15 mm N/A 26 mm N/A 18 mm N/A 15 mm
Dimension D1 N/A 3.5 mm N/A 3.5 mm N/A 8 mm N/A 5 mm N/A 3.5 mm
Dimension H N/A 1 mm N/A 1 mm N/A 2.5 mm N/A 1.5 mm N/A 1 mm
Pressure Type N/A Standard N/A Heavy N/A Heavy N/A Heavy N/A Standard
Approximate Spring Force Final Pressure F2 N/A 13 N N/A 40 N N/A 120 N N/A 73 N N/A 13 N
Approximate Spring Force Initial Pressure F1 N/A 9 N N/A 28 N N/A 66 N N/A 47 N N/A 9 N
Dimension L1 N/A 7 mm N/A 7 mm N/A 10 mm N/A 8 mm N/A 7 mm
Approximate Loosening Torque after Third Unscrewing N/A 0.21 nm N/A 0.21 nm N/A 1.30 nm N/A 0.38 nm N/A 0.21 nm
Approximate Tightening Torque N/A 0.44 nm N/A 0.44 nm N/A 2.00 nm N/A 1.10 nm N/A 0.44 nm
Dimension S N/A 3 in N/A 1/8 in N/A 7/32 in N/A 4 in N/A 1/8 in
Material N/A Steel Quality Class 5.8 N/A Steel Quality Class 5.8 N/A Stainless Steel 1.4305 N/A Steel Quality Class 5.8 N/A Steel Quality Class 5.8
Ball Material N/A Steel N/A Steel N/A Stainless Steel 1.4034 N/A Steel N/A Steel
Spring Material N/A Spring Steel D N/A Spring Steel D N/A Stainless Steel 1.4310 N/A Spring Steel D N/A Spring Steel D
Long-Lok® Thread System Material N/A Nylon
Body Finish N/A Black Oxide N/A Black Oxide N/A Natural N/A Black Oxide N/A Black Oxide
Weight N/A 0.04 lb N/A N/A N/A N/A
Features and Benefits N/A
  • Impact & Vibration Resistant
  • Secure in every position within the threaded hole
  • Reduce assembly time & cost - install without any additional components
  • Repeated Use - Torque Values remain nearly constant after approx. 20 uses
Note N/A There are dozens of standard products to choose from representative sampling of sizes and styles. Please contact EFC International for a complete listing of all available products, options and specific combinations that meet your needs.
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