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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Stamped Washer Type Lock Nuts are self-locking and provide a base that can cover larger clearance holes without the use of a separate loose washer. They combine the functionality of a hex nut, lock washer and flat washer to prevent back-off from vibration and thermal stress. Sealants can be applied for reduced moisture and noise intrusion.
Stamped Washer Type Self-Locking Hex Lock Nuts
Stamped Washer Type Self-Locking Hex Lock Nuts - 2
Unit of Measure
1 2 

Item #

Item Name

Screw Size

Height

Diameter

70006733 N/A 0.437 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 6-32 N/A 0.204 in N/A 0.437 in
02P604002-06Q N/A 0.437 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 6-32 N/A 0.204 in N/A 0.437 in
02P604003-03Q N/A 0.531 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 6-32 N/A 0.212 in N/A 0.531 in
02P604008-01Q N/A 0.468 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 8-32 N/A 0.212 in N/A 0.468 in
02P604008-03Q N/A 0.468 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 8-32 N/A 0.212 in N/A 0.468 in
02P604008-06Q N/A 0.468 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 8-32 N/A 0.212 in N/A 0.468 in
02P604008-11Q N/A 0.368 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 8-32 N/A 0.212 in N/A 0.368 in
02P604010-01Q N/A 0.625 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 8-32 N/A 0.234 in N/A 0.625 in
02P604010-03Q N/A 0.625 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 8-32 N/A 0.234 in N/A 0.625 in
02P604013-03Q N/A 0.50 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 10-32 N/A 0.218 in N/A 0.50 in
02P604014-06Q N/A 0.625 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 10-32 N/A 0.239 in N/A 0.625 in
70006730 N/A 0.50 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 10-24 N/A 0.231 in N/A 0.50 in
70008182 N/A 0.50 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 10-24 N/A 0.231 in N/A 0.50 in
02P604017-03Q N/A 0.50 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 10-24 N/A 0.231 in N/A 0.50 in
02P604019-03Q N/A 0.625 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 10-24 N/A 0.249 in N/A 0.625 in
02P604021-03Q N/A 0.75 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 10-24 N/A 0.269 in N/A 0.75 in
02P604028-01Q N/A 0.593 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 1/4-20 N/A .261 in N/A 0.593 in
02P604028-03Q N/A 0.593 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 1/4-20 N/A .261 in N/A 0.593 in
02P604028-06Q N/A 0.593 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 1/4-20 N/A .261 in N/A 0.593 in
02P604029-03Q N/A 0.687 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 1/4-20 N/A 0.276 in N/A 0.687 in
02P604030-03Q N/A 0.812 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 1/4-20 N/A 0.292 in N/A 0.812 in
02P604032-03Q N/A 1 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 1/4-20 N/A 0.320 in N/A 1 in
70006731 N/A 0.812 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 5/16-18 N/A 0.299 in N/A 0.812 in
70006732 N/A 0.812 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 5/16-18 N/A 0.299 in N/A 0.812 in
70008824 N/A 0.812 Inch (in) Diameter Stamped Washer Type Self-Locking Hex Locknut® N/A 5/16-18 N/A 0.299 in N/A 0.812 in
Unit of Measure
1 2