Mounting Fixings – Mouser Poland

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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.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PLN) 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 HI-TORQUE INSERT, STAINLESS IUTC-0420 SI 1: 4,58 zł 3 764In Stock	Mfr. Part No. IUTC-0420 Mouser Part No 153-IUTC-0420	SI	Mounting Fixings HI-TORQUE INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	3 764In Stock	4,58 zł 3,40 zł 2,68 zł 2,27 zł View 2,19 zł Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.316 in	0.5 in	0.342 in	1/4-20
Mounting Fixings HI-TORQUE INSERT, STAINLESS STEEL 3.43X3.86 M3 THREAD ULTRASONIC HEAT STAKING DIAGONAL IUTC-M3-343 SI 1: 3,07 zł 8 756In Stock	Mfr. Part No. IUTC-M3-343 Mouser Part No 153-IUTC-M3-343	SI	Mounting Fixings HI-TORQUE INSERT, STAINLESS STEEL 3.43X3.86 M3 THREAD ULTRASONIC HEAT STAKING DIAGONAL Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	8 756In Stock	3,07 zł 2,18 zł 1,74 zł 1,64 zł View 1,39 zł 1,33 zł 1,31 zł Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	4.01 mm	3.43 mm	4.55 mm	M3
Mounting Fixings ULTRASONIC INSERT, BRASS IUB-M3-1 SI 1: 0,832 zł 31 738In Stock	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	31 738In Stock	0,832 zł 0,603 zł 0,48 zł 0,436 zł View 0,40 zł 0,392 zł 0,37 zł 0,361 zł 0,348 zł	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-832 SI 1: 1,40 zł 13 261In Stock	Mfr. Part No. IUTB-832 Mouser Part No 153-IUTB-832	SI	Mounting Fixings HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	13 261In Stock	1,40 zł 0,986 zł 0,788 zł 0,744 zł View 0,629 zł 0,603 zł 0,585 zł 0,568 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	0.223 in	0.321 in	0.243 in	8-32
Mounting Fixings HI-TORQUE INSERT, STAINLESS IUTC-632 SI 1: 2,99 zł 8 305In Stock	Mfr. Part No. IUTC-632 Mouser Part No 153-IUTC-632	SI	Mounting Fixings HI-TORQUE INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	8 305In Stock	2,99 zł 2,10 zł 1,69 zł 1,58 zł View 1,34 zł 1,28 zł 1,26 zł Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.189 in	0.281 in	0.21 in	6-32
Mounting Fixings HI-TORQUE INSERT, STAINLESS IUTC-M4 SI 1: 4,01 zł 8 335In Stock	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	8 335In Stock	4,01 zł 3,00 zł 2,34 zł 2,20 zł View 2,15 zł 2,08 zł 2,01 zł 1,94 zł 1,91 zł	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 3.43X3.86 M3 THREAD ULTRASONIC HEAT STAKING DIAGONAL IUTB-M3-343 SI 1: 1,55 zł 15 214In Stock	Mfr. Part No. IUTB-M3-343 Mouser Part No 153-IUTB-M3-343	SI	Mounting Fixings HI-TORQUE INSERT, BRASS 3.43X3.86 M3 THREAD ULTRASONIC HEAT STAKING DIAGONAL Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	15 214In Stock	1,55 zł 1,10 zł 0,88 zł 0,792 zł View 0,735 zł 0,717 zł 0,673 zł 0,66 zł 0,634 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	4.01 mm	3.43 mm		M3
Mounting Fixings HI-TORQUE INSERT, BRASS IUTB-M6 SI 1: 3,07 zł 7 348In Stock	Mfr. Part No. IUTB-M6 Mouser Part No 153-IUTB-M6	SI	Mounting Fixings HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	7 348In Stock	3,07 zł 2,18 zł 1,74 zł 1,64 zł View 1,39 zł 1,33 zł 1,31 zł Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	8.03 mm	12.7 mm	8.69 mm	M6
Mounting Fixings ULTRASONIC,INSERT,STAINLESS IUCC-M5-2 SI 1: 3,78 zł 9 496In Stock	Mfr. Part No. IUCC-M5-2 Mouser Part No 153-IUCC-M5-2	SI	Mounting Fixings ULTRASONIC,INSERT,STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9 496In Stock	3,78 zł 2,81 zł 2,19 zł 2,06 zł View 2,02 zł 1,95 zł 1,88 zł 1,81 zł 1,79 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	7.06 mm	11.1 mm	8.33 mm	M5
Mounting Fixings HI-TORQUE INSERT, STAINLESS STEEL 3.18X3.07 M2 THREAD ULTRASONIC HEAT STAKING DIAGONAL IUTC-M2-318 SI 1: 2,04 zł 10 451In Stock	Mfr. Part No. IUTC-M2-318 Mouser Part No 153-IUTC-M2-318	SI	Mounting Fixings HI-TORQUE INSERT, STAINLESS STEEL 3.18X3.07 M2 THREAD ULTRASONIC HEAT STAKING DIAGONAL Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	10 451In Stock	2,04 zł 1,44 zł 1,15 zł 1,04 zł View 0,959 zł 0,933 zł 0,88 zł 0,862 zł 0,832 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	3.23 mm	3.18 mm	3.73 mm	M2
Mounting Fixings ULTRASONIC INSERT, STAINLESS IUC-632-2 SI 1: 2,50 zł 8 408In Stock	Mfr. Part No. IUC-632-2 Mouser Part No 153-IUC-632-2	SI	Mounting Fixings ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	8 408In Stock	2,50 zł 1,76 zł 1,41 zł 1,27 zł View 1,17 zł 1,14 zł 1,07 zł 1,05 zł 1,02 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.185 in	0.25 in	0.219 in	6-32
Mounting Fixings HI-TORQUE INSERT, BRASS IUTB-M3 SI 1: 1,40 zł 62 985In Stock	Mfr. Part No. IUTB-M3 Mouser Part No 153-IUTB-M3	SI	Mounting Fixings HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	62 985In Stock	1,40 zł 0,994 zł 0,796 zł 0,717 zł View 0,664 zł 0,647 zł 0,607 zł 0,598 zł 0,576 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	4.01 mm	5.74 mm	4.55 mm	M3
Mounting Fixings ULTRASONIC INSERT, STAINLESS IUC-M2.5-1 SI 1: 2,65 zł 10 444In Stock	Mfr. Part No. IUC-M2.5-1 Mouser Part No 153-IUC-M2.5-1	SI	Mounting Fixings ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	10 444In Stock	2,65 zł 1,86 zł 1,49 zł 1,34 zł View 1,25 zł 1,21 zł 1,14 zł 1,12 zł Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	3.89 mm	3.43 mm	4.37 mm	M2.5
Mounting Fixings HI-TORQUE INSERT, STAINLESS IUTC-M6 SI 1: 5,02 zł 9 133In Stock	Mfr. Part No. IUTC-M6 Mouser Part No 153-IUTC-M6	SI	Mounting Fixings HI-TORQUE INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9 133In Stock	5,02 zł 3,70 zł 2,88 zł 2,71 zł View 2,65 zł 2,57 zł 2,48 zł 2,39 zł Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	8.03 mm	12.7 mm	8.69 mm	M6
Mounting Fixings HI-TORQUE INSERT, BRASS IUTFB-M5 SI 1: 3,56 zł 9 769In Stock	Mfr. Part No. IUTFB-M5 Mouser Part No 153-IUTFB-M5	SI	Mounting Fixings HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9 769In Stock	3,56 zł 2,50 zł 2,01 zł 1,81 zł View 1,68 zł 1,63 zł 1,54 zł 1,50 zł Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	6.43 mm	9.53 mm	7.92 mm	M5
Mounting Fixings HI-TORQUE INSERT, STAINLESS IUTC-M2.5 SI 1: 3,26 zł 10 935In Stock	Mfr. Part No. IUTC-M2.5 Mouser Part No 153-IUTC-M2.5	SI	Mounting Fixings HI-TORQUE INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	10 935In Stock	3,26 zł 2,31 zł 1,85 zł 1,66 zł View 1,54 zł 1,50 zł 1,42 zł 1,38 zł Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	4.01 mm	5.74 mm	4.55 mm	M2.5
Mounting Fixings ULTRASONIC INSERT, BRASS IUB-M5-2 SI 1: 2,23 zł 9 710In Stock	Mfr. Part No. IUB-M5-2 Mouser Part No 153-IUB-M5-2	SI	Mounting Fixings ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9 710In Stock	2,23 zł 1,58 zł 1,26 zł 1,19 zł View 1,01 zł 0,959 zł 0,942 zł 0,911 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	6.25 mm	9.53 mm	7.54 mm	M5
Mounting Fixings HI-TORQUE INSERT, BRASS IUTB-M2 SI 1: 1,74 zł 16 187In 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	16 187In Stock	1,74 zł 1,26 zł 1,01 zł 0,906 zł View 0,84 zł 0,818 zł 0,77 zł 0,752 zł 0,726 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	3.23 mm	4 mm	3.73 mm	M2
Mounting Fixings HI-TORQUE INSERT IUTA-M3 SI 1: 1,21 zł 14 310In Stock 17 000Expected 12/21/2026	Mfr. Part No. IUTA-M3 Mouser Part No 153-IUTA-M3	SI	Mounting Fixings HI-TORQUE INSERT Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	14 310In Stock 17 000Expected 12/21/2026	1,21 zł 0,871 zł 0,695 zł 0,629 zł View 0,581 zł 0,568 zł 0,532 zł 0,524 zł 0,502 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	4.01 mm	5.74 mm	4.55 mm	M3
Mounting Fixings HI-TORQUE INSERT, STAINLESS IUTC-M3 SI 1: 3,22 zł 39 067In Stock	Mfr. Part No. IUTC-M3 Mouser Part No 153-IUTC-M3	SI	Mounting Fixings HI-TORQUE INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	39 067In Stock	3,22 zł 2,29 zł 1,83 zł 1,65 zł View 1,53 zł 1,49 zł 1,41 zł 1,38 zł Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	4.01 mm	5.74 mm	4.55 mm	M3
Mounting Fixings HI-TORQUE INSERT, STAINLESS STEEL 4.70X5.51 M4 THREAD ULTRASONIC HEAT STAKING DIAGONAL IUTC-M4-470 SI 1: 4,16 zł 4 256In Stock 10 000Expected 11/17/2026	Mfr. Part No. IUTC-M4-470 Mouser Part No 153-IUTC-M4-470	SI	Mounting Fixings HI-TORQUE INSERT, STAINLESS STEEL 4.70X5.51 M4 THREAD ULTRASONIC HEAT STAKING DIAGONAL Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	4 256In Stock 10 000Expected 11/17/2026	4,16 zł 3,13 zł 2,44 zł 2,30 zł View 2,25 zł 2,17 zł 2,09 zł 2,02 zł 1,99 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	5.67 mm	4.7 mm	6.17 mm	M4
Mounting Fixings HI-TORQUE INSERT, STAINLESS IUTC-M5 SI 1: 3,52 zł 7 646In Stock	Mfr. Part No. IUTC-M5 Mouser Part No 153-IUTC-M5	SI	Mounting Fixings HI-TORQUE INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	7 646In Stock	3,52 zł 2,63 zł 2,05 zł 1,93 zł View 1,89 zł 1,83 zł 1,76 zł 1,70 zł 1,67 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	6.43 mm	9.52 mm	6.93 mm	M5
Mounting Fixings HI-TORQUE INSERT, BRASS IUTFB-M2 SI 1: 1,82 zł 8 794In Stock 10 000Expected 2/12/2027	Mfr. Part No. IUTFB-M2 Mouser Part No 153-IUTFB-M2	SI	Mounting Fixings HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	8 794In Stock 10 000Expected 2/12/2027	1,82 zł 1,31 zł 1,04 zł 0,942 zł View 0,876 zł 0,849 zł 0,801 zł 0,783 zł 0,757 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	3.23 mm	3.99 mm	4.75 mm	M2	Bulk
Mounting Fixings HI-TORQUE INSERT, BRASS IUTFB-M4 SI 1: 2,27 zł 9 201In Stock 31 000On Order	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	9 201In Stock 31 000On Order On Order Ship Dates Mfr. No: IUTFB-M4 Stock: 9 201 Can Dispatch Immediately On Order: 20 000 Expected 10/12/2026 11 000 Expected 1/4/2027 Factory Lead Time: 24 Weeks	2,27 zł 1,62 zł 1,30 zł 1,17 zł View 1,09 zł 1,06 zł 0,994 zł 0,972 zł 0,937 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	5.67 mm	8.15 mm	7.14 mm	M4
Mounting Fixings ULTRASONIC INSERT, BRASS IUB-M3-2 SI 1: 0,986 zł 146 668In Stock 56 798On Order	Mfr. Part No. IUB-M3-2 Mouser Part No 153-IUB-M3-2	SI	Mounting Fixings ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	146 668In Stock 56 798On Order On Order Ship Dates Mfr. No: IUB-M3-2 Stock: 146 668 Can Dispatch Immediately On Order: 12 674 Pending 44 124 Expected 10/20/2026 Factory Lead Time: 18 Weeks	0,986 zł 0,673 zł 0,541 zł 0,506 zł View 0,427 zł 0,414 zł 0,40 zł 0,392 zł	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	3.58 mm	5.56 mm	4.37 mm	M3