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SPIROL’s Series 27 Short Symmetrical Inserts are designed for straight holes with a 1° maximum (included) draft angle and are typically installed with heat or ultrasonic vibration. The Series 27 also comes in a Long version for applications requiring more demanding torque and/or pull-out resistance. The Series 27 Short Inserts have the same body style as the standard Series 29 Short Symmetrical Inserts with a slightly smaller centre knurl diameter for ultra-thin walled boss assemblies. The SPIROL’s Series 27 Symmetrical 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.

Unit of Measure

Package Type

 N/A Each

Supply Status

 N/A Not Stocked

Units Per Package

 N/A 1

Thread Size

 N/A 4-40

Overknurl Ø (A Ref.)

 N/A .177 in

Length (L)

 N/A .140 in

Pilot Ø (P)

 N/A .154 in

Rec. Hole Ø

 N/A .157 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 0.0002238 kg0.0004934 lb

Order Processing Note

 N/A Orders typically ship in 2-3 business days. Orders received after 3pm GMT will be processed on the next business day.