Palnut® On-Sert Fasteners



Palnut® On-Sert Fasteners

The Dimensions of the following parts are envelope dimensions only. For complete design information, please contact us.

Swipe
      On-Sert Fasteners Plastic Boss
  Part
Number
Thread
Size No.
(See Note 1)
Design Height
H (In.)
Dia.
D In.
Weight
Lbs./M
Pieces
O.D. (In.) I.D. (In.)
(See Note 2)
Min. Dia.
of Ctsk.
C (In.)
Applicator
Tool Part No.
(See Note 3)
  NR 440004 4-40 1 .220 .284 1.0 .247-.253 .096-.100 .180 WW 100250
  NR 620005 6-20 & 6-18 1 .230 .354 1.5 .309-.315 .116-.120 .250 WW 100312
  NR 632005 6-32 1 .230 .354 1.4 .309-.315 .116-.120 .250 WW 100312
  NR 818005 8-18 & 8-15 1 .230 .354 1.4 .309-.315 .140-.144 .290 WW 100312
  NR 818045 8-18 & 8-15 1 .230 .328 1.3 .279-.285 .140-.144 .220 WW 100312
  NR 818008 8-18 & 8-15 1 .260 .544 3.5 .497-.503 .140-.144 .290 WW 100500
  NR 818085 8-18 & 8-15 1 .254 .556 3.0 .509-.515 .140-.144 .290 WW 160500
  NR 818006 8-18 & 8-15 1 .220 .422 1.9 .372-.378 .140-.144 .290 WW 100375
  NI 818006 8-18 & 8-15 2 .280 .422 1.9 .372-.378 .185-.250 NONE WDK 170438
  NR 832006 8-32 1 .220 .422 1.9 .372-.378 .140-.144 .290 WW 100375
  NI 832006 8-32 2 .270 .422 1.9 .372-.378 .185-.250 NONE WDK 170438
  NR 101606 10-12 & 10-16 1 .230 .422 1.8 .372-.378 .160-.164 .290 WW 100375
Swipe
        High Impact Styrene Polycarbonate ABS Acetal
  Part Number Screw
Size No.
(driven to
5/16"
penetration)
Hole Size
(I.D. In.)
Max Torque
(In. Lbs.)
Avg. Pull-Out
(Lbs.)
Max Torque
(In. Lbs.)
Avg. Pull-Out (Lbs.) Max Torque
(In. lbs.)
Avg. Pull-Out (Lbs.) Max Torque (In. Lbs.) Avg. Pull-Out (Lbs.)
  None 8-18 .142 10 150 10 162 15 375 25 530
  NR 818006 8-18 Inter. Fit 27 280 30 370 33 438 53 680
  None 8-18 .250 Assembly Not Possible
  NR 818006 8-18 Clear Fit 15 118 20 129 15 68 15 107

Palnut® On-Sert Fasteners NOTE 1. The thread form of Parts NR440004, NR832006 and NI832006 is designed to accept either a machine screw or Type F tapping screw of the thread size designated. Each of the other parts accommodates a tapping screw of the size indicated.

NOTE 2. For maximum screw pull-out resistance with Design 1 parts, the boss I.D. should be as specified above to provide an interference fit with the screw. On-sert fasteners can also be used where the screw clears the I.D. of the boss, but this arrangement reduces resistance to screw pull-out.

NOTE 3. Design 2 parts should always be installed with the appropriate applicator tool which is designed to protect the projecting thread form from deformation by pressure or a direct blow. Although Design 1 parts may be installed by tapping directly on the top of the fasteners with a hammer, the magnetized applicator tool facilitates handling and positioning.

These distinctive fasteners with a single helical thread slip over hollow plastic bosses and prevent splitting when screws are driven. They also prevent cross-threading and resist screw pull-out. Yet screws may be removed without harming the fasteners or the boss. On-sert fasteners thus perform the same function as solid inserts but cost only about one-fifth as much. One type is used when screws enter the top of a boss while another type is used when screws enter the bottom of the boss.