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The metric Series 29 Long Insert is the longer version of the metric Series 29 Short Insert resulting in higher torque and pull-out resistance. Designed with a wide center knurl with two smaller knurls and deep undercuts on both ends, the Series 29 Long (and the Series 30 Long – Headed version of the Series 29 Long ) typically provides the highest torque and pull out performance within SPIROL’s Heat/Ultrasonic style Inserts designed for straight holes. The Series 29 Long is symmetrical for ease of orientation, and the generous pilot facilitates installation into the hole. The Series 29 Long is available in metric threads ranging from M2 up to M8.

If you don’t see what you are looking for in our standard offering (including thread size, length, quantity, etc.), please feel free to contact SPIROL directly at info@spirol.com or call any one of our global offices for complimentary Application Engineering assistance!

Unit of Measure

Package Type

 N/A Bag

Supply Status

 N/A Stocked

Units Per Package

 N/A 250

Thread Size

 N/A M3 x 0.5

Overknurl Ø (A Ref.)

 N/A 4.75 mm

Length (L)

 N/A 5.74 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 Aluminum

Material Grade

 N/A ASTM B211 2024
ISO AlCu4Mg1

Finish

 N/A Plain

Weight Per Piece

 N/A 0.0001066 kg0.0002351 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.