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Press-In Inserts are designed to be pressed into the plastic hole without melting the plastic prior to installation. Press-In Inserts offer rapid installation with no specialized equipment and achieve good overall joint performance

The Series 51 Inserts are the headed version of the Series 50. The head provides a larger bearing surface for the mating assembly is also suitable for pull-through applications where high pull-out force is a requirement. Series 51 Inserts are available in thread sizes ranging from M2 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

Supply Status

N/A Stocked

Units Per Box

N/A 1

Thread Size

N/A M4 x 0.7

Overknurl Ø (A Ref.)

N/A 5.77 mm

Head Ø (H)

N/A 7.06 mm

Head Thickness (T)

N/A 0.84 mm

Length (L)

N/A 4.70 mm

Pilot Ø (P)

N/A 5.44 mm

Rec. Hole Ø

N/A 5.51 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 0.0007203 kg0.0015879 lb