Item # S-RT632-2ZC, All Metal, RT® Free-Running Locknuts

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PEM® S-RT™ free-running locknuts are free-running until clamp load is induced. A modified thread angle on the loaded flank provides the vibration resistant locking feature.

Screw turns freely until a clamp load is applied.
Resistant to vibrational loosening.
Back side of panel is flush or sub-flush for screw installation.
Locking feature reusability is not affected by number of on/off cycles.
Uses same mounting hole and installation tooling as standard S™ nut fasteners found in PEM® Bulletin CL.

Unit of Measure

Specifications

Thread Size	N/A .138-32 (#6-32)
Thread Code	N/A RT632
Shank Code	N/A 2
A (Shank) Max.	N/A .054 in
Rec. Min. Sheet Thickness¹	N/A .056 in
Hole Size in Sheet + .003 - .000	N/A .1875 in
C Max.	N/A .187 in
E ± .010	N/A .280 in
T ± .010	N/A .070 in
Min. Dist. Hole C/L to Edge	N/A .22 in
For Use in Sheet Hardness	N/A HRB 80 / HB 150 or less
Thread Specification	N/A Modified thread form on loaded flank. Will accept a maximum material 6g screw.
Fastener Material	N/A Hardened Carbon Steel
Optional Finish	N/A Zinc plated per ASTM B633, SC1 (5µm), Type II, yellow
CAD Supplier	N/A PennEngineering® (PEM®)

¹ For maximum performance, we recommend that you use the maximum shank length for your sheet thickness.

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Thread Size

Thread Code

Shank Code

A (Shank) Max.

Hole Size in Sheet + .003 - .000

C Max.

E ± .010

T ± .010

Min. Dist. Hole C/L to Edge

For Use in Sheet Hardness

Thread Specification

Fastener Material

Optional Finish

CAD Supplier

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