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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, and is also suitable for pull-through applications where high pull-out force is a requirement. Series 51 Headed Press-In Inserts are available in thread sizes ranging from 2-56 up to 5/16-18.

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!

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Unit of Measure
1 

Item #

Supply Status

Units Per Package

Thread Size

Overknurl Ø (A)

Head Ø (H)

Length (L)

Material Type

Finish

Price per Box

78243 N/A Stocked N/A 300 N/A 2-56 N/A .134 in N/A .185 in N/A .125 in N/A Brass N/A Plain €53.78
294825 N/A Stocked N/A 300 N/A 2-56 N/A .134 in N/A .185 in N/A .125 in N/A Aluminum N/A Plain €53.78
78249 N/A Stocked N/A 300 N/A 4-40 N/A .165 in N/A .216 in N/A .140 in N/A Brass N/A Plain €55.35
294827 N/A Stocked N/A 300 N/A 4-40 N/A .165 in N/A .216 in N/A .140 in N/A Aluminum N/A Plain €55.35
78252 N/A Stocked N/A 300 N/A 6-32 N/A .196 in N/A .247 in N/A .150 in N/A Brass N/A Plain €69.71
294829 N/A Stocked N/A 300 N/A 6-32 N/A .196 in N/A .247 in N/A .150 in N/A Aluminum N/A Plain €69.71
78253 N/A Stocked N/A 250 N/A 8-32 N/A .227 in N/A .278 in N/A .185 in N/A Brass N/A Plain €70.04
294831 N/A Stocked N/A 250 N/A 8-32 N/A .227 in N/A .278 in N/A .185 in N/A Aluminum N/A Plain €70.04
78237 N/A Stocked N/A 200 N/A 10-24 N/A .259 in N/A .310 in N/A .250 in N/A Brass N/A Plain €71.12
294833 N/A Stocked N/A 200 N/A 10-24 N/A .259 in N/A .310 in N/A .250 in N/A Aluminum N/A Plain €71.12
78238 N/A Stocked N/A 200 N/A 10-32 N/A .259 in N/A .310 in N/A .250 in N/A Brass N/A Plain €71.12
294834 N/A Stocked N/A 200 N/A 10-32 N/A .259 in N/A .310 in N/A .250 in N/A Aluminum N/A Plain €71.12
78241 N/A Stocked N/A 150 N/A 1/4-20 N/A .321 in N/A .372 in N/A .312 in N/A Brass N/A Plain €71.44
294275 N/A Stocked N/A 150 N/A 1/4-20 N/A .321 in N/A .372 in N/A .312 in N/A Aluminum N/A Plain €71.44
78244 N/A Stocked N/A 150 N/A 5/16-18 N/A .384 in N/A .435 in N/A .375 in N/A Brass N/A Plain €99.20
294836 N/A Stocked N/A 150 N/A 5/16-18 N/A .384 in N/A .435 in N/A .375 in N/A Aluminum N/A Plain €99.20
Unit of Measure
1