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SPIROL’s Series 27 Short Symmetrical Metric 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 is also available in a Long version for applications requiring a higher torque and/or pull-out resistance. The Series 27 Short Inserts have the same body style as the standard Series 29 Short Symmetric Inserts with a slightly smaller center knurl diameter for ultra-thin walled boss assemblies. The SPIROL’s Series 27 Symmetrical Metric Inserts are available to order in metric threads ranging in size from M2 to M6.

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 M3 x 0.5

Overknurl Ø (A Ref.)

 N/A 4.50 mm

Length (L)

 N/A 3.56 mm

Pilot Ø (P)

 N/A 3.91 mm

Rec. Hole Ø

 N/A 3.99 mm

Rec. Hole Ø Tolerance

 N/A +0.08/-0.00 mm

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 0.0001843 kg0.0004063 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.