Part # NFPA-0518, Press-in Threaded Inserts, Hexagonal - Unified On Aero-Space Fasteners and Electronics, Inc.

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All Categories > SI® Brand Insert for Plastics > Press-in Inserts > Hexagonal Inserts – Types NFPC, NFPA > Press-in Threaded Inserts, Hexagonal - Unified > Part # NFPA-0518

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Press-fit insert provides strong, reusable threads. No heat or ultrasonics required.
Hexagonal “barbed” configuration ensures high torqueout and pullout values.
Aluminum inserts ideal for light weight designs.
Aluminum and stainless steel inserts offer lead-free alternative.

Unit of Measure

Specifications

Thread Size	N/A .313-18 (5/16-18)
Type	N/A NFPA
Thread Code	N/A 0518
A Max.	N/A .365 in
C Max.	N/A .374 in
E Nom.	N/A .375 in
Min. Sheet Thickness	N/A .380 in
Hole Size in Sheet + .003 - .000	N/A .375 in
Min. Boss Dia.	N/A .950 in
Min. Depth Full Thread H¹	N/A .345 in
Thread Specification	N/A 2B per ASME B1.1
Standard Material	N/A Aluminum
Standard Finish	N/A Plain
CAD Supplier	N/A PennEngineering® (SI®)

¹ Thread tapped thru, Class 3A/4h screw must pass with finger torque, but basic go gauge may stop at pilot end.