Mounting Hardware – Mouser Japan

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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 (JPY) 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 Hardware HI-TORQUE INSERT, BRASS .150X.183 6-32 THREAD ULTRASONIC HEAT STAKING DIAGONAL IUTB-632-150 SI 1: ¥53.2 9,160In Stock	Mfr. Part # IUTB-632-150 Mouser Part # 153-IUTB-632-150	SI	Mounting Hardware HI-TORQUE INSERT, BRASS .150X.183 6-32 THREAD ULTRASONIC HEAT STAKING DIAGONAL Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9,160In Stock	¥53.2 ¥37.2 ¥29.9 ¥28.1 View ¥23.8 ¥22.8 ¥22.3 ¥21.4	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	0.189 in	0.15 in		6-32
Mounting Hardware ULTRASONIC INSERT, BRASS IUB-440-1 SI 1: ¥36.5 9,774In Stock	Mfr. Part # IUB-440-1 Mouser Part # 153-IUB-440-1	SI	Mounting Hardware ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9,774In Stock	¥36.5 ¥25.7 ¥20.6 ¥19.4 View ¥16.3 ¥15.6 ¥15.3 ¥14.8	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	0.153 in	0.135 in	0.172 in	4-40
Mounting Hardware ULTRASONIC INSERT, STAINLESS IUC-0428-1 SI 1: ¥210.9 694In Stock	Mfr. Part # IUC-0428-1 Mouser Part # 153-IUC-0428-1	SI	Mounting Hardware ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	694In Stock	¥210.9 ¥157.5 ¥122.6 ¥115.4 View ¥112.9 ¥109.3 ¥105.5 ¥101.7 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.349 in	0.3 in	0.375 in	1/4-28
Mounting Hardware HI-TORQUE INSERT, ALUM IUTA-M5 SI 1: ¥79.7 811In Stock	Mfr. Part # IUTA-M5 Mouser Part # 153-IUTA-M5	SI	Mounting Hardware HI-TORQUE INSERT, ALUM Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	811In Stock	¥79.7 ¥56.5 ¥45.2 ¥42.7 View ¥36 ¥34.5 ¥33.7 ¥32.7	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	6.43 mm	9.52 mm	6.93 mm	M5
Mounting Hardware HI-TORQUE INSERT, STAINLESS IUTC-M2 SI 1: ¥81.4 7,224In Stock	Mfr. Part # IUTC-M2 Mouser Part # 153-IUTC-M2	SI	Mounting Hardware HI-TORQUE INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	7,224In Stock	¥81.4 ¥57.5 ¥46 ¥43.4 View ¥36.7 ¥35.2 ¥34.4 ¥33.2	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	3.23 mm	4 mm	3.73 mm	M2
Mounting Hardware ISC-440 DBL ENDED NUT ISC-440 SI 1: ¥112.9 557In Stock	Mfr. Part # ISC-440 Mouser Part # 153-ISC-440	SI	Mounting Hardware ISC-440 DBL ENDED NUT Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	557In Stock	¥112.9 ¥79.7 ¥63.8 ¥60.1 View ¥51 ¥48.8 ¥47.7 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Nut, Double Ended	Stainless Steel	0.157 in	0.226 in	0.182 in	4-40
Mounting Hardware ISC-M5 DBL ENDED NUT ISC-M5 SI 1: ¥181 65In Stock	Mfr. Part # ISC-M5 Mouser Part # 153-ISC-M5	SI	Mounting Hardware ISC-M5 DBL ENDED NUT Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	65In Stock	¥181 ¥135.4 ¥105.3 ¥99.3 View ¥97.2 ¥93.8 ¥90.7 ¥87.4 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Nut, Double Ended	Stainless Steel	6.4 mm	9.52 mm	7.01 mm	M5
Mounting Hardware ULTRASONIC INSERT, ALUMINUM IUA-M2.5-2 SI 1: ¥64.8 785In Stock	Mfr. Part # IUA-M2.5-2 Mouser Part # 153-IUA-M2.5-2	SI	Mounting Hardware ULTRASONIC INSERT, ALUMINUM Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	785In Stock	¥64.8 ¥45.3 ¥36.4 ¥34.2 View ¥28.9 ¥27.7 ¥27.1 ¥26.2	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	3.58 mm	5.56 mm	4.37 mm	M2.5
Mounting Hardware ULTRASONIC INSERT, BRASS IUB-M6-1 SI 1: ¥94.7 898In Stock 10,000Expected 1/29/2027	Mfr. Part # IUB-M6-1 Mouser Part # 153-IUB-M6-1	SI	Mounting Hardware ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	898In Stock 10,000Expected 1/29/2027	¥94.7 ¥68.3 ¥54.6 ¥49.2 View ¥45.7 ¥44.3 ¥41.9 ¥41 ¥39.5	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	8.86 mm	7.62 mm	9.52 mm	M6
Mounting Hardware ULTRASONIC INSERT, STAINLESS IUC-0420-1 SI 1: ¥201 114In Stock	Mfr. Part # IUC-0420-1 Mouser Part # 153-IUC-0420-1	SI	Mounting Hardware ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	114In Stock	¥201 ¥151 ¥117.4 ¥110.8 View ¥108.3 ¥104.6 ¥101.2 ¥97.5 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.349 in	0.3 in	0.375 in	1/4-20
Mounting Hardware ULTRASONIC INSERT, STAINLESS IUC-832-2 SI 1: ¥136.2 1,215In Stock	Mfr. Part # IUC-832-2 Mouser Part # 153-IUC-832-2	SI	Mounting Hardware ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	1,215In Stock	¥136.2 ¥95.7 ¥76.6 ¥72.1 View ¥61.1 ¥58.6 ¥57.3 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.208 in	0.312 in	0.25 in	8-32
Mounting Hardware HI-TORQUE INSERT, ALUMINUM .300X.310 1/4-20 THREAD ULTRASONIC HEAT STAKING DIAGONAL IUTA-0420-300 SI 1: ¥103 615In Stock	Mfr. Part # IUTA-0420-300 Mouser Part # 153-IUTA-0420-300	SI	Mounting Hardware HI-TORQUE INSERT, ALUMINUM .300X.310 1/4-20 THREAD ULTRASONIC HEAT STAKING DIAGONAL Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	615In Stock	¥103 ¥73.1 ¥58.6 ¥52.7 View ¥49 ¥47.7 ¥44.8 ¥43.9 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	0.316 in	0.3 in	0.342 in	1/4-20
Mounting Hardware HI-TORQUE INSERT, BRASS IUTB-M5 SI 1: ¥86.4 6,108In Stock	Mfr. Part # IUTB-M5 Mouser Part # 153-IUTB-M5	SI	Mounting Hardware HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	6,108In Stock	¥86.4 ¥60.6 ¥48.7 ¥45.8 View ¥38.7 ¥37 ¥36.4 ¥35	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	6.43 mm	9.52 mm	6.93 mm	M5
Mounting Hardware HI-TORQUE INSERT, STAINLESS IUTC-M3.5 SI 1: ¥122.9 4,655In Stock 5,250Expected 10/30/2026	Mfr. Part # IUTC-M3.5 Mouser Part # 153-IUTC-M3.5	SI	Mounting Hardware HI-TORQUE INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	4,655In Stock 5,250Expected 10/30/2026	¥122.9 ¥86.5 ¥69.3 ¥65.3 View ¥55.3 ¥53 ¥51.8 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	4.81 mm	7.14 mm	5.33 mm	M3.5
Mounting Hardware HI-TORQUE INSERT, BRASS IUTFB-M3.5 SI 1: ¥94.7 337In Stock	Mfr. Part # IUTFB-M3.5 Mouser Part # 153-IUTFB-M3.5	SI	Mounting Hardware HI-TORQUE INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	337In Stock	¥94.7 ¥68.1 ¥54.5 ¥49 View ¥45.5 ¥44.3 ¥41.7 ¥40.9 ¥39.5	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	4.81 mm	7.14 mm	6.35 mm	M3.5	Bulk
Mounting Hardware ISB-M4 DBL ENDED NUT ISB-M4 SI 1: ¥112.9 363In Stock	Mfr. Part # ISB-M4 Mouser Part # 153-ISB-M4	SI	Mounting Hardware ISB-M4 DBL ENDED NUT Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	363In Stock	¥112.9 ¥81.2 ¥64.9 ¥58.5 View ¥54.3 ¥52.8 ¥49.8 ¥48.7 Quote	Min.: 1 Mult.: 1	Screws & Fasteners	Nut, Double Ended	Brass	5.62 mm	8.15 mm	6.22 mm	M4
Mounting Hardware ULTRASONIC INSERT, ALUM IUA-M5-2 SI 1: ¥59.8 1,121In Stock	Mfr. Part # IUA-M5-2 Mouser Part # 153-IUA-M5-2	SI	Mounting Hardware ULTRASONIC INSERT, ALUM Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	1,121In Stock	¥59.8 ¥41.7 ¥33.4 ¥31.6 View ¥26.6 ¥25.6 ¥24.9 ¥24.1	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	6.25 mm	9.53 mm	7.54 mm	M5
Mounting Hardware ULTRASONIC INSERT, BRASS IUB-M3.5-2 SI 1: ¥48.2 1,230In Stock	Mfr. Part # IUB-M3.5-2 Mouser Part # 153-IUB-M3.5-2	SI	Mounting Hardware ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	1,230In Stock	¥48.2 ¥33.9 ¥27.1 ¥25.6 View ¥21.6 ¥20.6 ¥20.3 ¥19.6	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	4.7 mm	6.35 mm	5.56 mm	M3.5
Mounting Hardware ULTRASONIC INSERT, BRASS IUB-M6-2 SI 1: ¥166.1 785In Stock	Mfr. Part # IUB-M6-2 Mouser Part # 153-IUB-M6-2	SI	Mounting Hardware ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	785In Stock	¥166.1 ¥124.1 ¥102.2 ¥86.7 View ¥85.9 ¥83.1 ¥80.1 ¥78.9	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	8.15 mm	12.7 mm	9.52 mm	M6
Mounting Hardware ULTRASONIC INSERT, STAINLESS IUC-032-2 SI 1: ¥147.8 525In Stock	Mfr. Part # IUC-032-2 Mouser Part # 153-IUC-032-2	SI	Mounting Hardware ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	525In Stock	¥147.8 ¥110.5 ¥86 ¥81.1 View ¥79.4 ¥76.7 ¥74.1 ¥71.4 ¥70.3	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.246 in	0.375 in	0.297 in	10-32
Mounting Hardware ULTRASONIC INSERT, STAINLESS IUC-832-1 SI 1: ¥104.6 9In Stock	Mfr. Part # IUC-832-1 Mouser Part # 153-IUC-832-1	SI	Mounting Hardware ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9In Stock	¥104.6 ¥74.4 ¥59.6 ¥53.7 View ¥49.8 ¥48.5 ¥45.7 ¥44.7 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.226 in	0.185 in	0.25 in	8-32
Mounting Hardware ULTRASONIC INSERT, STAINLESS IUC-M2.5-2 SI 1: ¥117.9 1,149In Stock	Mfr. Part # IUC-M2.5-2 Mouser Part # 153-IUC-M2.5-2	SI	Mounting Hardware ULTRASONIC INSERT, STAINLESS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	1,149In Stock	¥117.9 ¥83.7 ¥67.1 ¥63.1 View ¥53.5 ¥51.3 ¥50.2 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	3.58 mm	5.56 mm	4.37 mm	M2.5
Mounting Hardware HI-TORQUE INSERT, BRASS 4.70X5.51 M4 THREAD ULTRASONIC HEAT STAKING DIAGONAL IUTB-M4-470 SI 1: ¥81.4 9,898In Stock	Mfr. Part # IUTB-M4-470 Mouser Part # 153-IUTB-M4-470	SI	Mounting Hardware HI-TORQUE INSERT, BRASS 4.70X5.51 M4 THREAD ULTRASONIC HEAT STAKING DIAGONAL Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	9,898In Stock	¥81.4 ¥56.8 ¥45.5 ¥42.9 View ¥36.2 ¥34.7 ¥33.9 ¥32.7	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	5.67 mm	4.7 mm		M4
Mounting Hardware ISB-M3 DBL ENDED ISB-M3 SI 1: ¥66.4 4,914In Stock	Mfr. Part # ISB-M3 Mouser Part # 153-ISB-M3	SI	Mounting Hardware ISB-M3 DBL ENDED Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	4,914In Stock	¥66.4 ¥47.2 ¥37.7 ¥35.5 View ¥30.1 ¥28.7 ¥28.2 ¥27.2	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	3.99 mm	5.74 mm	4.62 mm	M3
Mounting Hardware ULTRASONIC INSERT, BRASS IUB-M4-2 SI 1: ¥56.5 3,318In Stock 10,000Expected 1/25/2027	Mfr. Part # IUB-M4-2 Mouser Part # 153-IUB-M4-2	SI	Mounting Hardware ULTRASONIC INSERT, BRASS Learn More about SI standard inserts ultrasonic heat staking inserts	Datasheet	3,318In Stock 10,000Expected 1/25/2027	¥56.5 ¥40.2 ¥32.2 ¥29.1 View ¥26.9 ¥26.2 ¥24.7 ¥24.1 ¥23.3	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Brass	5.28 mm	7.92 mm	6.35 mm	M4