EFC International - Single-Thread Engaging Self-Locking W-Type Bolt Retainers

Single-Thread Engaging Self-Locking W-Type Bolt Retainers provide a dual locking action where an inward thread lock combines with an arched spring lock to ensure strong and reliable holding power.

Available in a wide range of standard and custom variations, these W-Type Bolt Retainers work with all major screw types and sizes.

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Unit of Measure

Items	01072025-24Q 1/4-20 Thread Size Single-Thread Engaging Self-Locking W-Type Bolt Retainer	01C8780017 1/4-20 Thread Size Single-Thread Engaging Self-Locking W-Type Bolt Retainer	01C63251420 1/4-20 Thread Size Single-Thread Engaging Self-Locking W-Type Bolt Retainer	01C6325SS1420 1/4-20 Thread Size Single-Thread Engaging Self-Locking W-Type Bolt Retainer	01C63255618 5/16-18 Thread Size Single-Thread Engaging Self-Locking W-Type Bolt Retainer
Description	N/A Single-Thread Engaging Self-Locking W-Type Bolt Retainers provide a dual locking action where an inward thread lock combines with an arched spring lock to ensure strong and reliable holding power. Available in a wide range of standard and custom variations, these W-Type Bolt Retainers work with all major screw types and sizes.
Thread Size	N/A 1/4-20	N/A 1/4-20	N/A 1/4-20	N/A 1/4-20	N/A 5/16-18
Material Thickness (Decimal)	N/A 0.025 in	N/A 0.017 in	N/A 0.025 in	N/A 0.025 in	N/A 0.028 in
Width	N/A 0.875 in	N/A 0.63 in	N/A 0.88 in	N/A 0.88 in	N/A 0.88 in
Height	N/A	N/A 0.320 in	N/A 0.240 in	N/A 0.240 in	N/A 0.240 in
Design Variation	N/A	N/A C	N/A E	N/A E	N/A E
Diameter Length	N/A 0.964 in	N/A 0.750 in	N/A 1.010 in	N/A 1.010 in	N/A 1.020 in
Material	N/A Heat-Treated High Carbon Spring Steel	N/A Heat-Treated High Carbon Spring Steel	N/A Heat-Treated High Carbon Spring Steel	N/A Heat-Treated High Carbon Spring Steel Stainless Steel	N/A Heat-Treated High Carbon Spring Steel
Features and Benefits	N/A Made from heat-treated high carbon spring steel, these versatile fasteners: Offer easier handling and faster application. Eliminate the need for lock washers, spanner washers, or other loose pieces. Resist loosening from vibration. Will not freeze to threads or clog with paint. Provide maximum fastening power with minimal installation torque required.