Mounting Fixings – Mouser Estonia

.hide-partial { max-height: none; } .show-more { display: none; }

Ultrasonic/Heat Staking Inserts

SI (Standard Inserts) Ultrasonic/Heat Staking Inserts are hexagonal-shaped body inserts that provide rotational torque resistance and knurling provides torque out resistance. The heat staking inserts are installed by pressing the insert into the mounting hole with a thermal press to melt the plastic surrounding the insert. The SI^® brand inserts employ press-in and heat/ultrasonic installation methods to provide strong, reusable, and permanent threads in plastic. These SI^® inserts are available in brass, stainless steel, and aluminum. The applications include wearables, smartphones, handheld devices, automotive, aerospace and defense, medical, transportation, industrial, and recreational equipment.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 268

Applied Filters:

Product

Type

Material

Mounting Hole Size

Length

Outside Diameter

Thread Size

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Material	Mounting Hole Size	Length	Outside Diameter	Thread Size	Packaging
Mounting Fixings ULTRASONIC INSERT, BRASS IUB-M3-1 SI 1: 0,189 € 22.694In Stock 52.000On Order	Mfr. Part No. IUB-M3-1 Mouser Part No 153-IUB-M3-1	SI	Mounting Fixings ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	22.694In Stock 52.000On Order On Order Ship Dates Mfr. No: IUB-M3-1 Stock: 22.694 Can Dispatch Immediately On Order: 25.000 Expected 2/12/2027 27.000 Expected 3/12/2027 Factory Lead Time: 17 Weeks	0,189 € 0,137 € 0,109 € 0,099 € View 0,091 € 0,089 € 0,084 € 0,082 € 0,079 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	3.89 mm	3.43 mm	4.37 mm	M3
Mounting Fixings HI-TORQUE INSERT, BRASS IUTB-M2 SI 1: 0,396 € 14.546In Stock	Mfr. Part No. IUTB-M2 Mouser Part No 153-IUTB-M2	SI	Mounting Fixings HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	14.546In Stock	0,396 € 0,286 € 0,229 € 0,206 € View 0,191 € 0,186 € 0,175 € 0,171 € 0,165 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	3.23 mm	4 mm	3.73 mm	M2
Mounting Fixings HI-TORQUE INSERT, BRASS IUTFB-M6 SI 1: 0,679 € 5.803In Stock 16.427On Order	Mfr. Part No. IUTFB-M6 Mouser Part No 153-IUTFB-M6	SI	Mounting Fixings HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	5.803In Stock 16.427On Order On Order Ship Dates Mfr. No: IUTFB-M6 Stock: 5.803 Can Dispatch Immediately On Order: 4.927 Pending 11.500 Expected 2/12/2027 Factory Lead Time: 19 Weeks	0,679 € 0,506 € 0,416 € 0,353 € View 0,35 € 0,338 € 0,326 € 0,321 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	8.03 mm	12.7 mm	9.53 mm	M6	Bulk
Mounting Fixings ULTRASONIC INSERT, STAINLESS IUC-440-2 SI 1: 0,456 € 8.795In Stock	Mfr. Part No. IUC-440-2 Mouser Part No 153-IUC-440-2	SI	Mounting Fixings ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	8.795In Stock	0,456 € 0,321 € 0,256 € 0,242 € View 0,205 € 0,196 € 0,192 € 0,185 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.141 in	0.219 in	0.172 in	4-40
Mounting Fixings HI-TORQUE INSERT, STAINLESS IUTC-M4 SI 1: 0,912 € 4.695In Stock 10.000Expected 3/5/2027	Mfr. Part No. IUTC-M4 Mouser Part No 153-IUTC-M4	SI	Mounting Fixings HI-TORQUE INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	4.695In Stock 10.000Expected 3/5/2027	0,912 € 0,682 € 0,531 € 0,501 € View 0,489 € 0,473 € 0,457 € 0,44 € 0,434 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	5.67 mm	8.15 mm	6.17 mm	M4
Mounting Fixings HI-TORQUE INSERT, BRASS IUTFB-M4 SI 1: 0,516 € 26.933In Stock 11.000Expected 11/10/2026	Mfr. Part No. IUTFB-M4 Mouser Part No 153-IUTFB-M4	SI	Mounting Fixings HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	26.933In Stock 11.000Expected 11/10/2026	0,516 € 0,369 € 0,295 € 0,266 € View 0,247 € 0,24 € 0,226 € 0,221 € 0,213 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	5.67 mm	8.15 mm	7.14 mm	M4
Mounting Fixings ULTRASONIC INSERT, STAINLESS IUC-M6-2 SI 1: 1,22 € 8.662In Stock	Mfr. Part No. IUC-M6-2 Mouser Part No 153-IUC-M6-2	SI	Mounting Fixings ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	8.662In Stock	1,22 € 0,912 € 0,706 € 0,665 € View 0,65 € 0,629 € 0,607 € 0,586 € Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	8.15 mm	12.7 mm	9.52 mm	M6
Mounting Fixings ULTRASONIC INSERT, STAINLESS IUC-024-2 SI 1: 0,834 € 9.048In Stock 1.132On Order	Mfr. Part No. IUC-024-2 Mouser Part No 153-IUC-024-2	SI	Mounting Fixings ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9.048In Stock 1.132On Order	0,834 € 0,622 € 0,484 € 0,457 € View 0,445 € 0,431 € 0,416 € 0,401 € 0,395 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.246 in	0.375 in	0.297 in	10-24
Mounting Fixings ULTRASONIC INSERT, STAINLESS IUCC-M3-1 SI 1: 0,55 € 11.866In Stock	Mfr. Part No. IUCC-M3-1 Mouser Part No 153-IUCC-M3-1	SI	Mounting Fixings ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	11.866In Stock	0,55 € 0,386 € 0,31 € 0,279 € View 0,258 € 0,251 € 0,237 € 0,231 € 0,224 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	5.05 mm	3.81 mm	5.56 mm	M3
Mounting Fixings HI-TORQUE INSERT, STAINLESS STEEL 12.70X9.50 M8 THREAD ULTRASONIC HEAT STAKING DIAGONAL IUTC-M8 SI 1: 1,25 € 10.201In Stock	Mfr. Part No. IUTC-M8 Mouser Part No 153-IUTC-M8	SI	Mounting Fixings HI-TORQUE INSERT, STAINLESS STEEL 12.70X9.50 M8 THREAD ULTRASONIC HEAT STAKING DIAGONAL Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	10.201In Stock	1,25 € 0,929 € 0,722 € 0,679 € View 0,665 € 0,642 € 0,62 € 0,599 € Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	9.6 mm	12.7 mm	10.31 mm	M8
Mounting Fixings ULTRASONIC INSERT, BRASS IUB-M2.5-2 SI 1: 0,421 € 9.056In Stock	Mfr. Part No. IUB-M2.5-2 Mouser Part No 153-IUB-M2.5-2	SI	Mounting Fixings ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9.056In Stock	0,421 € 0,296 € 0,237 € 0,213 € View 0,195 € 0,192 € 0,181 € 0,177 € 0,171 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	3.58 mm	5.56 mm	4.37 mm	M2.5
Mounting Fixings HI-TORQUE INSERT, BRASS IUTFB-440 SI 1: 0,413 € 9.989In Stock	Mfr. Part No. IUTFB-440 Mouser Part No 153-IUTFB-440	SI	Mounting Fixings HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9.989In Stock	0,413 € 0,29 € 0,232 € 0,209 € View 0,191 € 0,188 € 0,177 € 0,174 € 0,168 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	0.158 in	0.226 in	0.218 in	4-40	Bulk
Mounting Fixings ULTRASONIC INSERT, BRASS IUB-0420-1 SI 1: 0,473 € 555In Stock	Mfr. Part No. IUB-0420-1 Mouser Part No 153-IUB-0420-1	SI	Mounting Fixings ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	555In Stock	0,473 € 0,336 € 0,269 € 0,243 € View 0,225 € 0,219 € 0,206 € 0,202 € 0,195 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	0.349 in	0.3 in	0.375 in	1/4-20
Mounting Fixings ULTRASONIC INSERT, BRASS IUB-832-1 SI 1: 0,232 € 2.271In Stock 10.000Expected 12/14/2026	Mfr. Part No. IUB-832-1 Mouser Part No 153-IUB-832-1	SI	Mounting Fixings ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	2.271In Stock 10.000Expected 12/14/2026	0,232 € 0,168 € 0,134 € 0,12 € View 0,112 € 0,109 € 0,102 € 0,101 € 0,097 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	0.226 in	0.185 in	0.25 in	8-32
Mounting Fixings ULTRASONIC INSERT, BRASS IUB-M5-1 SI 1: 0,37 € 6.331In Stock	Mfr. Part No. IUB-M5-1 Mouser Part No 153-IUB-M5-1	SI	Mounting Fixings ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	6.331In Stock	0,37 € 0,267 € 0,213 € 0,192 € View 0,178 € 0,173 € 0,163 € 0,16 € 0,154 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	6.78 mm	5.72 mm	7.54 mm	M5
Mounting Fixings ULTRASONIC INSERT, BRASS IUBB-M5-1 SI 1: 0,37 € 682In Stock	Mfr. Part No. IUBB-M5-1 Mouser Part No 153-IUBB-M5-1	SI	Mounting Fixings ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	682In Stock	0,37 € 0,259 € 0,207 € 0,195 € View 0,165 € 0,158 € 0,155 € 0,15 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	7.7 mm	6.71 mm	8.33 mm	M5
Mounting Fixings HI-TORQUE INSERT, BRASS 5.72X6.27 M5 THREAD ULTRASONIC HEAT STAKING DIAGONAL IUTB-M5-572 SI 1: 0,482 € 10.311In Stock	Mfr. Part No. IUTB-M5-572 Mouser Part No 153-IUTB-M5-572	SI	Mounting Fixings HI-TORQUE INSERT, BRASS 5.72X6.27 M5 THREAD ULTRASONIC HEAT STAKING DIAGONAL Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	10.311In Stock	0,482 € 0,341 € 0,273 € 0,246 € View 0,229 € 0,222 € 0,21 € 0,205 € 0,198 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	6.43 mm	5.72 mm		M5
Mounting Fixings ULTRASONIC INSERT, BRASS IUB-440-1 SI 1: 0,189 € 9.774In Stock	Mfr. Part No. IUB-440-1 Mouser Part No 153-IUB-440-1	SI	Mounting Fixings ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9.774In Stock	0,189 € 0,133 € 0,107 € 0,101 € View 0,084 € 0,081 € 0,079 € 0,077 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	0.153 in	0.135 in	0.172 in	4-40
Mounting Fixings ULTRASONIC INSERT, STAINLESS IUC-0428-1 SI 1: 1,09 € 694In Stock	Mfr. Part No. IUC-0428-1 Mouser Part No 153-IUC-0428-1	SI	Mounting Fixings ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	694In Stock	1,09 € 0,815 € 0,635 € 0,598 € View 0,585 € 0,566 € 0,546 € 0,526 € Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.349 in	0.3 in	0.375 in	1/4-28
Mounting Fixings HI-TORQUE INSERT, ALUM IUTA-M5 SI 1: 0,413 € 811In Stock	Mfr. Part No. IUTA-M5 Mouser Part No 153-IUTA-M5	SI	Mounting Fixings HI-TORQUE INSERT, ALUM Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	811In Stock	0,413 € 0,292 € 0,234 € 0,221 € View 0,187 € 0,179 € 0,175 € 0,169 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	6.43 mm	9.52 mm	6.93 mm	M5
Mounting Fixings HI-TORQUE INSERT, STAINLESS IUTC-M2 SI 1: 0,421 € 7.224In Stock	Mfr. Part No. IUTC-M2 Mouser Part No 153-IUTC-M2	SI	Mounting Fixings HI-TORQUE INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	7.224In Stock	0,421 € 0,298 € 0,238 € 0,224 € View 0,19 € 0,182 € 0,178 € 0,172 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	3.23 mm	4 mm	3.73 mm	M2
Mounting Fixings HI-TORQUE INSERT, STAINLESS IUTC-032 SI 1: 0,834 € 1.183In Stock	Mfr. Part No. IUTC-032 Mouser Part No 153-IUTC-032	SI	Mounting Fixings HI-TORQUE INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	1.183In Stock	0,834 € 0,621 € 0,489 € 0,415 € View 0,401 € 0,395 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.253 in	0.375 in	0.273 in	10-32
Mounting Fixings HI-TORQUE INSERT, BRASS IUTFB-832 SI 1: 0,507 € 89In Stock	Mfr. Part No. IUTFB-832 Mouser Part No 153-IUTFB-832	SI	Mounting Fixings HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	89In Stock	0,507 € 0,363 € 0,291 € 0,261 € View 0,243 € 0,237 € 0,223 € 0,218 € 0,211 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	0.223 in	0.321 in	0.281 in	8-32	Bulk
Mounting Fixings ULTRASONIC INSERT, ALUM IUA-440-1 SI 1: 0,224 € 1.426In Stock	Mfr. Part No. IUA-440-1 Mouser Part No 153-IUA-440-1	SI	Mounting Fixings ULTRASONIC INSERT, ALUM Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	1.426In Stock	0,224 € 0,162 € 0,13 € 0,117 € View 0,108 € 0,105 € 0,099 € 0,097 € 0,094 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	0.153 in	0.135 in	0.172 in	4-40
Mounting Fixings ULTRASONIC INSERT, BRASS IUB-632-2 SI 1: 0,232 € 7.377In Stock	Mfr. Part No. IUB-632-2 Mouser Part No 153-IUB-632-2	SI	Mounting Fixings ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	7.377In Stock	0,232 € 0,164 € 0,132 € 0,124 € View 0,105 € 0,10 € 0,098 € 0,095 €	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	0.185 in	0.25 in	0.219 in	6-32