S-RT440-1ZC - All Metal, RT® Free-Running Locknuts - PEM® Fastening Products

S-RT440-1ZC

All Metal, RT® Free-Running Locknuts

Nuts / S-RT440-1ZC
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S-RT440-1ZC

All Metal, RT® Free-Running Locknuts

PEM® 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.

Specifications

Thread Code
RT440
Thread Size(x Pitch)
.112-40 (#4-40)
Shank Code
1
Standard Finish
SC1(5um), Type II, yellow, Zinc plated per ASTM B633
For Use in Sheet Hardness
HRB 80 / HB 150 or less
Product Category
All Metal, RT® Free-Running Locknuts – Unified
PEM Product Family
RT
Product Type
Nuts
A Shank Max
0.038in
E ± .010_in
0.25in
Min. Dist. Hole C/L to Edge_in
0.19in
C Max._in
0.165in
T ± .010_in
0.07in

Installation & Performance Data

Type Thread Code Shank Code Test Sheet Material Installation (lbs.) Anvil Dim A ±.002 (in.) Anvil Dim P ± .005 (in.) Haeger Part Number Anvil Haeger Part Number Punch Pemserter Part Number Anvil Pemserter Part Number Punch Pushout (lbs.) Torque-out (in. lbs.)
S RT440 1 5052-H34 Aluminum 1500-2000 0.267 0.045 H-101-2-4/M3L H-108-0020L 975200034 975200048 90 10
S RT440 1 Cold-rolled Steel 2500-3500 0.267 0.045 H-101-2-4/M3L H-108-0020L 975200034 975200048 125 15

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