These Long-Lok® Pin-Style Spring Plungers with Slotted Sockets have bodies, pins & springs made from steel or stainless steel. They 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 resistance and therefore the amount of torque required for loosening.
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Items
Long-Lok® Pin-Style Spring Plungers with Slotted Sockets

Long-Lok® 1/4-20 Thread Size Pin-Style Spring Plunger with Slotted Sockets

Long-Lok® Pin-Style Spring Plungers with Slotted Sockets

Long-Lok® 3/8-16 Thread Size Pin-Style Spring Plunger with Slotted Sockets

Long-Lok® Pin-Style Spring Plungers with Slotted Sockets

Long-Lok® M8 Thread Size Pin-Style Spring Plunger with Slotted Sockets

Long-Lok® Pin-Style Spring Plungers with Slotted Sockets

Long-Lok® 1/4-20 Thread Size Pin-Style Spring Plunger with Slotted Sockets

Long-Lok® Pin-Style Spring Plungers with Slotted Sockets

Long-Lok® 3/8-16 Thread Size Pin-Style Spring Plunger with Slotted Sockets
Description N/A These Long-Lok® Pin-Style Spring Plungers with Slotted Sockets have bodies, pins & springs made from steel or stainless steel. They 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 resistance and therefore the amount of torque required for loosening.
Type N/A Pin
Dimension D N/A 1/4-20 N/A 3/8-16 N/A M8 N/A 1/4-20 N/A 3/8-16
Dimension L N/A 14 mm N/A 19 mm N/A 16 mm N/A 14 mm N/A 19 mm
Dimension D1 N/A 2.7 mm N/A 4.5 mm N/A 4 mm N/A 2.7 mm N/A 4.5 mm
Dimension H N/A 2 mm N/A 2.5 mm N/A 2 mm N/A 2 mm N/A 2.5 mm
Dimension N N/A 1 mm N/A 1.6 mm N/A 1.2 mm N/A 1 mm N/A 1.6 mm
Pressure Type N/A Light N/A Light N/A Light N/A Standard N/A Standard
Approximate Spring Force Final Pressure F2 N/A 10 N N/A 16 N N/A 15 N N/A 20 N N/A 35 N
Approximate Spring Force Initial Pressure F1 N/A 4 N N/A 9 N N/A 7 N N/A 7 N N/A 20 N
Dimension L1 N/A 7 mm N/A 9 mm N/A 8 mm N/A 7 mm N/A 9 mm
Approximate Loosening Torque after Third Unscrewing N/A 0.21 nm N/A 0.62 nm N/A 0.38 nm N/A 0.21 nm N/A 0.62 nm
Approximate Tightening Torque N/A 0.44 nm N/A 1.36 nm N/A 1.10 nm N/A 0.44 nm N/A 1.36 nm
Material N/A Steel Quality Class 5.8 N/A Steel Quality Class 5.8 N/A Steel Quality Class 5.8 N/A Steel Quality Class 5.8 N/A Stainless Steel 1.4305
Pressure Pin Material N/A Hardened Steel N/A Hardened Steel N/A Hardened Steel N/A Hardened Steel N/A Stainless Steel 1.4034
Spring Material N/A Spring Steel N/A Spring Steel N/A Spring Steel N/A Spring Steel N/A Stainless Steel 1.4310
Long-Lok® Thread System Material N/A Nylon
Features and Benefits N/A
  • Impact & Vibration Resistant
  • Secure in every position within the threaded hole
  • Nearly Constant Torque Values even after approx. 20 uses
  • End Pressure Options- Light or Standard
  • Any Application
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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