On-Sert® fasteners slip over hollow plastic bosses and prevent splitting while driving screws. Two types of On-Serts® are used depending on their placement at top or bottom of the boss.
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On-Sert® Fasteners

0.22 Inch (in) Height On-Sert® Fastener
On-Sert® Fasteners

0.23 Inch (in) Height On-Sert® Fastener
On-Sert® Fasteners

0.23 Inch (in) Height On-Sert® Fastener
On-Sert® Fasteners

0.23 Inch (in) Height On-Sert® Fastener
On-Sert® Fasteners

5.84 Millimeter (mm) Height On-Sert® Fastener
Description N/A On-Sert® fasteners slip over hollow plastic bosses and prevent splitting while driving screws. Two types of On-Serts® are used depending on their placement at top or bottom of the boss.
Screw Size N/A 4-40 N/A 6-18 N/A 8-18 N/A 10-16 N/A M5 x 0.8
Hole Diameter N/A 0.141 in N/A 0.185 in N/A 0.629 in N/A 0.162 in N/A 5.525 mm
Height N/A 0.22 in N/A 0.23 in N/A 0.23 in N/A 0.23 in N/A 5.84 mm
Material Thickness (Decimal) N/A .015 in N/A 0.017 in N/A 0.017 in N/A 0.018 in N/A 0.430 in
Diameter N/A 0.25 in N/A 0.157 in N/A 0.312 in N/A 0.375 in N/A 9.52 mm
Minimum Hole Height N/A 0.156 in N/A 0.213 in N/A 0.628 in N/A 0.164 in N/A 6.35 mm
Features and Benefits N/A
  • Hollow, helical design saves cost over solid inserts
  • Resists screw pull-out
  • Prevent cross-threading
  • Screw can be removed without damaging the boss or fastener
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