Part # S-RTM4-0ZI, All Metal, RT® Free-Running Locknuts

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	All Categories All Metal, RT® Free-Running Locknuts - Metric


All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Nuts for Sheet Metal > All Metal, Locking Thread Nuts – Types FE, FEO, HNL, LA4, LAC, LAS, LK, LKA, LKS, SL, UL, RT > All Metal, RT® Free-Running Locknuts > All Metal, RT® Free-Running Locknuts - Metric > Part # S-RTM4-0ZI


	Part # S-RTM4-0ZI, All Metal, RT® Free-Running Locknuts - Metric

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.

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Specifications

Thread Size x Pitch

M4 x 0.7

Thread Code

RTM4

Shank Code

A (Shank) Max.

0.77 mm

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Rec. Min. Sheet Thickness¹

0.8 mm

Hole Size in Sheet + 0.08

5.41 mm

C Max.

5.38 mm

E ± 0.25

7.87 mm

T ± 0.25

2 mm

Min. Dist. Hole C/L to Edge

6.9 mm

For Use in Sheet Hardness

HRB 80 / HB 150 or less

Thread Specification

Modified thread form on loaded flank. Will accept a maximum material 6g screw.

Fastener Material

Hardened Carbon Steel

Standard Finish

Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

CAD Supplier

PennEngineering® (PEM®)

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

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		PEM Bulletin CL

Part # S-RTM4-0ZI, All Metal, RT® Free-Running Locknuts - Metric

Thread Size x Pitch

Thread Code

Shank Code

A (Shank) Max.

Rec. Min. Sheet Thickness¹

Hole Size in Sheet + 0.08

C Max.

E ± 0.25

T ± 0.25

Min. Dist. Hole C/L to Edge

For Use in Sheet Hardness

Thread Specification

Fastener Material

Standard Finish

CAD Supplier

Download our brochure

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Services

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Part # S-RTM4-0ZI, All Metal, RT® Free-Running Locknuts - Metric

Thread Size x Pitch

Thread Code

Shank Code

A (Shank) Max.

Rec. Min. Sheet Thickness1

Hole Size in Sheet + 0.08

C Max.

E ± 0.25

T ± 0.25

Min. Dist. Hole C/L to Edge

For Use in Sheet Hardness

Thread Specification

Fastener Material

Standard Finish

CAD Supplier

Download our brochure

Product resources

Services

Our Brands

Useful Links

Departments

Rec. Min. Sheet Thickness¹