EFC International
EFC International
1940 Craigshire St. Louis,
MO 63146-4008
Phone: 1 314.434.28881
Contact: www.efc-intl.com/contact
Website: www.efc-intl.com
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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.
Unit of Measure

Specifications

Thread Size

 N/A 1/4-20

Material Thickness (Decimal)

 N/A 0.017 in

Width

 N/A 0.63 in

Height

 N/A 0.320 in

Design Variation

 N/A C

Diameter Length

 N/A 0.750 in

Material

 N/A Heat-Treated High Carbon Spring Steel

Features and Benefits

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.