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.

Results: 268
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Description Datasheet Availability Pricing (DKK) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Type
Material
Mounting Hole Size
Length
Outside Diameter
Thread Size
Packaging
SI Mounting Fixings ULTRASONIC INSERT, STAINLESS
Datasheet
9.845Expected 26/02/2027
3,08 kr.
2,20 kr.
1,77 kr.
1,58 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 0.153 in 0.135 in 0.172 in 4-40
SI Mounting Fixings ULTRASONIC INSERT, STAINLESS
Datasheet
10.000Expected 25/01/2027
5,33 kr.
3,78 kr.
3,03 kr.
2,85 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 6.78 mm 5.72 mm 7.54 mm M5
SI Mounting Fixings HI-TORQUE INSERT, BRASS
Datasheet
47.938On Order
2,50 kr.
1,77 kr.
1,42 kr.
1,34 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 4.01 mm 5.74 mm 4.55 mm M2.5
SI Mounting Fixings HI-TORQUE INSERT, STAINLESS
Datasheet
8.617Expected 13/11/2026
8,58 kr.
6,42 kr.
5,02 kr.
4,73 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 0.316 in 0.5 in 0.342 in 1/4-28
SI Mounting Fixings HI-TORQUE INSERT, STAINLESS
Datasheet
9.683Expected 11/01/2027
3,40 kr.
2,45 kr.
1,96 kr.
1,77 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 0.127 in 0.157 in 0.147 in 2-56
SI Mounting Fixings HI-TORQUE INSERT, STAINLESS
Datasheet
10.000Expected 12/02/2027
4,10 kr.
2,95 kr.
2,36 kr.
2,13 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 0.158 in 0.226 in 0.179 in 4-40
SI Mounting Fixings HI-TORQUE INSERT, BRASS
Datasheet
22.230On Order
5,07 kr.
3,77 kr.
3,10 kr.
2,63 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 8.03 mm 12.7 mm 9.53 mm M6 Bulk
SI Mounting Fixings ULTRASONIC INSERT, STAINLESS
Datasheet
807Expected 17/11/2026
4,04 kr.
2,87 kr.
2,31 kr.
2,07 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 0.199 in 0.15 in 0.219 in 6-32
SI Mounting Fixings ISC-M6 DBL ENDED NUT
Datasheet
200Expected 01/01/2027
9,18 kr.
6,86 kr.
5,34 kr.
5,04 kr.
View
Min.: 1
Mult.: 1
Screws & Fasteners Nut, Double Ended Stainless Steel 8 mm 12.7 mm 8.58 mm M6
SI Mounting Fixings ULTRASONIC INSERT, ALUM
Datasheet
6.313Expected 11/01/2027
1,80 kr.
1,31 kr.
1,04 kr.
0,94 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Aluminum 0.185 in 0.25 in 0.219 in 6-32
SI Mounting Fixings ULTRASONIC INSERT, AULM
Datasheet
8.501Expected 13/11/2026
1,92 kr.
1,34 kr.
1,07 kr.
1,01 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Aluminum 3.58 mm 5.56 mm 4.37 mm M3
SI Mounting Fixings ULTRASONIC INSERT, AULM
Datasheet
1.998Expected 01/01/2027
1,86 kr.
1,32 kr.
1,06 kr.
0,955 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Aluminum 5.74 mm 4.7 mm 6.35 mm M4
SI Mounting Fixings ULTRASONIC INSERT, AL
Datasheet
9.349Expected 27/11/2026
2,25 kr.
1,59 kr.
1,27 kr.
1,15 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Aluminum 4.7 mm 6.35 mm 5.56 mm M3
SI Mounting Fixings ULTRASONIC INSERT, BRASS
Datasheet
9.020Expected 12/02/2027
1,80 kr.
1,28 kr.
1,03 kr.
0,925 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 0.141 in 0.219 in 0.172 in 4-40
SI Mounting Fixings ULTRASONIC INSERT, BRASS
Datasheet
9.076Expected 29/01/2027
2,31 kr.
1,62 kr.
1,30 kr.
1,22 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 4.7 mm 6.35 mm 5.56 mm M3
SI Mounting Fixings ULTRASONIC INSERT, STAINLESS
Datasheet
1.000Expected 05/02/2027
5,71 kr.
4,26 kr.
3,36 kr.
2,84 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 6.25 mm 9.53 mm 7.54 mm M5
SI Mounting Fixings HI-TORQUE INSERT, ALUMINUM .125X.121 2-56 THREAD ULTRASONIC HEAT STAKING DIAGONAL
Datasheet
4In Stock
2,18 kr.
1,56 kr.
1,25 kr.
1,13 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Aluminum 0.127 in 0.125 in 2-56
SI Mounting Fixings HI-TORQUE INSERT, BRASS
Datasheet
498On Order
3,08 kr.
2,19 kr.
1,75 kr.
1,58 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 4.81 mm 7.14 mm 5.33 mm M3.5
SI Mounting Fixings HI-TORQUE INSERT, BRASS
Datasheet
1.997Expected 30/10/2026
3,40 kr.
2,41 kr.
1,92 kr.
1,81 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Brass 0.189 in 0.281 in 0.25 in 6-32
SI Mounting Fixings ULTRASONIC INSERT, STAINLESS
Datasheet
14In Stock
7,76 kr.
5,83 kr.
4,54 kr.
4,28 kr.
View
Min.: 1
Mult.: 1
Inserts Threaded Insert Stainless Steel 0.349 in 0.3 in 0.375 in 1/4-20
SI Mounting Fixings ISA-0420 DBL ENDED NUT
Datasheet
Non-Stocked
1,52 kr.
1,49 kr.
1,44 kr.
Min.: 10.000
Mult.: 1.000
Screws & Fasteners Nut, Double Ended Aluminum 0.315 in 0.5 in 0.338 in 1/4-20
SI Mounting Fixings ISA-256 DBL ENDED NUT ALUM
Datasheet
Non-Stocked
1,04 kr.
1,01 kr.
0,985 kr.
Min.: 10.000
Mult.: 1.000
Screws & Fasteners Nut, Double Ended Aluminum 0.126 in 0.157 in 0.151 in 2-56
SI Mounting Fixings ISA-440 DBL ENDED NUT
Datasheet
Non-Stocked
1,07 kr.
1,04 kr.
1,01 kr.
Min.: 10.000
Mult.: 1.000
Screws & Fasteners Nut, Double Ended Aluminum 0.157 in 0.226 in 0.182 in 4-40
SI Mounting Fixings ISA-632 DBL ENDED NUT, ALUM
Datasheet
Non-Stocked
1,06 kr.
1,03 kr.
1,00 kr.
Min.: 10.000
Mult.: 1.000
Screws & Fasteners Nut, Double Ended Aluminum 0.188 in 0.281 in 0.215 in 6-32
SI Mounting Fixings ISA-832 DBL ENDED NUT
Datasheet
Non-Stocked
1,22 kr.
1,19 kr.
1,16 kr.
Min.: 10.000
Mult.: 1.000
Screws & Fasteners Nut, Double Ended Aluminum 0.221 in 0.321 in 0.245 in 8-32