SPIROL’s Series 28 Short Headed Inserts are designed for straight holes with a 1° maximum (included) draft angle and are typically installed with heat or ultrasonic vibration. The Series 28 Short Headed Inserts are similar to the Series 27 Short Inserts with the addition of a head for increased bearing area. The Series 28 Headed Inserts have the same body style as the standard Series 30 Short Headed Inserts with a reduced center knurl diameter for plastic assemblies where the boss diameter is less than 2x the body diameter of the Insert. The Series 28 Inserts are also available in a Long version for applications requiring more demanding torque and/or pull-out resistance. The SPIROL’s Series 28 Headed Inserts are available to order in inch threads ranging in size from 2-56 up to ¼-20.
If you would like assistance in selecting the most appropriate Insert for your application, please contact SPIROL for complimentary technical support.
Package Type |
N/A Each |
Supply Status |
N/A Not Stocked |
Units Per Package |
N/A 1 |
Thread Size |
N/A 2-56 |
Overknurl Ø (A Ref.) |
N/A .140 in |
Head Ø (H) |
N/A .185 in |
Head Thickness (T) |
N/A .018 in |
Length (L) |
N/A .125 in |
Pilot Ø (P) |
N/A .123 in |
Rec. Hole Ø |
N/A .126 in |
Rec. Hole Ø Tolerance |
N/A +.003/-.000 in |
Material Type |
N/A Brass |
Material Grade |
N/A
ASTM B16 UNS C36000 EN 12164 CW603N CuZn36Pb3 |
Finish |
N/A Plain |
Weight Per Piece |
N/A 0.0001901 kg0.0004192 lb |
Order Processing Note |
N/A Orders typically ship in 2-3 business days. Orders received after 3pm EST will be processed on the next business day. |