Stocked Threaded Inserts for Insert Molding, Heatstaking, and Ultrasonic Welding

Insert molding, heatstaking, and ultrasonic welding provide options to insert metal parts into your injection-molded part. We stock threaded inserts for these processes to support your unique design needs.

Insert molding adds a preformed part—often metal—during the injection molding process. Ultrasonic welding and heat staking are post-processing options to add inserts in thermoplastics to support different—and often times, more complex—geometries. Ultrasonic welding uses a high frequency vibration to generate heat and drive the insert into the part, while heat staking generates heat by using a conductive surface. Our applications engineering team can provide insight into the best solution for your project.

Click here to download the CAD files of our stocked inserts.

Stocked Threaded Inserts

• Blind-brass Inserts (Mold-in)
• Thru-brass Inserts (Mold-in)
• Tapered Inserts (Heat Stake/Ultrasonic)

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INS #	Thread	Length
INS-PL0001	2-56 UNC	0.156 in.
INS-PL0002	4-40 UNC	0.205 in.
INS-PL0003	6-32 UNC	0.25 in.
INS-PL0004	8-32 UNC	0.25 in.
INS-PL0005	10-24 UNC	0.356 in.
INS-PL0006	1/4-20 UNC	0.344 in.
INS-PL0007	M3x5	5.21mm
INS-PL0008	M4x7	6.35mm
INS-PL0009	M5x8	7.13mm

INS #	Thread	Length
INS-PL0010	2-56 UNC	0.125 in.
INS-PL0011	4-40 UNC	0.187 in.
INS-PL0012	6-32 UNC	0.219 in.
INS-PL0013	8-32 UNC	0.312 in.
INS-PL0014	10-24 UNC	0.281 in.
INS-PL0015	1/4-20 UNC	0.5 in.
INS-PL0016	M3x5	4.77mm
INS-PL0017	M4x7	8.00mm

 

 

Inch		Metric		A	B	C	D	E	F	Min. Boss
Thread Size	Part Number	Thread Size	Part Number	± 0.004 in. (long)	± 0.004 in. (short)	± 0.004 in.	± 0.004 in.	0.002 in.	0.002 in.
2-56	256 x 115H	M2.0 x 0.4	M20 x 115H		0.115 in.	0.123 in.	0.141 in.	0.129 in.	0.118 in.	0.246 in.
	256 x 188H		M20 x 188H	0.118 in.		0.112 in.	0.141 in.	0.123 in.	0.107 in.	0.246 in.
4-40	440 x 135H	M2.5 x 0.45	M25 x 135H		0.135 in.	0.157 in.	0.172 in.	0.159 in.	0.153 in.	0.318 in.
	440 x 219H		M25 x 219H	0.219 in.		0.146 in.	0.172 in.	0.159 in.	0.141 in.	0.318 in.
6-32	632 x 150H	M3.5 x 0.6	M35 x 150H		0.150 in.	0.203 in.	0.219 in.	0.206 in.	0.199 in.	0.412 in.
	632 x 105H
8-32	832 x 185H	M4.0 x 0.7	M40 x 185H		0.185 in.	0.230 in.	0.250 in.	0.234 in.	0.226 in.	0.468 in.
	832 x 312H		M40 312H	0.3127 in.		0.213 in.	0.250 in.	0.234 in.	0.208 in.	0.468 in.