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 (JPY) 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 Hardware ULTRASONIC INSERT, STAINLESS
Datasheet
8,458In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 0.185 in 0.25 in 0.219 in 6-32
SI Mounting Hardware HI-TORQUE INSERT, BRASS
Datasheet
64,823In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Brass 4.01 mm 5.74 mm 4.55 mm M3


SI Mounting Hardware ULTRASONIC INSERT, BRASS
Datasheet
34,838In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Brass 3.89 mm 3.43 mm 4.37 mm M3
SI Mounting Hardware HI-TORQUE INSERT, BRASS
Datasheet
13,267In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Brass 0.223 in 0.321 in 0.243 in 8-32
SI Mounting Hardware HI-TORQUE INSERT, STAINLESS
Datasheet
3,764In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 0.316 in 0.5 in 0.342 in 1/4-20
SI Mounting Hardware HI-TORQUE INSERT, STAINLESS STEEL 3.43X3.86 M3 THREAD ULTRASONIC HEAT STAKING DIAGONAL
Datasheet
8,956In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 4.01 mm 3.43 mm 4.55 mm M3
SI Mounting Hardware HI-TORQUE INSERT, STAINLESS
Datasheet
8,305In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 0.189 in 0.281 in 0.21 in 6-32
SI Mounting Hardware HI-TORQUE INSERT, BRASS 3.43X3.86 M3 THREAD ULTRASONIC HEAT STAKING DIAGONAL
Datasheet
15,214In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Brass 4.01 mm 3.43 mm M3
SI Mounting Hardware HI-TORQUE INSERT, BRASS
Datasheet
7,358In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Brass 8.03 mm 12.7 mm 8.69 mm M6
SI Mounting Hardware HI-TORQUE INSERT, STAINLESS
Datasheet
8,885In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 5.67 mm 8.15 mm 6.17 mm M4
SI Mounting Hardware ULTRASONIC INSERT, STAINLESS
Datasheet
10,444In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 3.89 mm 3.43 mm 4.37 mm M2.5
SI Mounting Hardware HI-TORQUE INSERT, STAINLESS
Datasheet
9,233In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 8.03 mm 12.7 mm 8.69 mm M6
SI Mounting Hardware HI-TORQUE INSERT, BRASS
Datasheet
9,769In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Brass 6.43 mm 9.53 mm 7.92 mm M5
SI Mounting Hardware ULTRASONIC,INSERT,STAINLESS
Datasheet
9,496In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 7.06 mm 11.1 mm 8.33 mm M5
SI Mounting Hardware HI-TORQUE INSERT, STAINLESS STEEL 3.18X3.07 M2 THREAD ULTRASONIC HEAT STAKING DIAGONAL
Datasheet
10,451In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 3.23 mm 3.18 mm 3.73 mm M2
SI Mounting Hardware HI-TORQUE INSERT, STAINLESS
Datasheet
10,955In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 4.01 mm 5.74 mm 4.55 mm M2.5
SI Mounting Hardware ULTRASONIC INSERT, STAINLESS
Datasheet
16,313In Stock
99,000On Order
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 3.58 mm 5.56 mm 4.37 mm M3

SI Mounting Hardware HI-TORQUE INSERT, BRASS
Datasheet
8,188In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Brass 6.43 mm 9.52 mm 6.93 mm M5
SI Mounting Hardware HI-TORQUE INSERT, BRASS
Datasheet
16,527In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Brass 3.23 mm 4 mm 3.73 mm M2
SI Mounting Hardware HI-TORQUE INSERT, STAINLESS
Datasheet
39,271In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 4.01 mm 5.74 mm 4.55 mm M3
SI Mounting Hardware HI-TORQUE INSERT, STAINLESS STEEL 4.70X5.51 M4 THREAD ULTRASONIC HEAT STAKING DIAGONAL
Datasheet
4,786In Stock
10,000Expected 11/17/2026
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 5.67 mm 4.7 mm 6.17 mm M4
SI Mounting Hardware HI-TORQUE INSERT, STAINLESS
Datasheet
7,646In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Stainless Steel 6.43 mm 9.52 mm 6.93 mm M5
SI Mounting Hardware HI-TORQUE INSERT, BRASS
Datasheet
8,905In Stock
10,000Expected 2/12/2027
Min.: 1
Mult.: 1

Inserts Threaded Insert Brass 3.23 mm 3.99 mm 4.75 mm M2 Bulk
SI Mounting Hardware ULTRASONIC INSERT, BRASS
Datasheet
118,425In Stock
115,041On Order
Min.: 1
Mult.: 1

Inserts Threaded Insert Brass 3.58 mm 5.56 mm 4.37 mm M3
SI Mounting Hardware HI-TORQUE INSERT, BRASS
Datasheet
7,628In Stock
Min.: 1
Mult.: 1

Inserts Threaded Insert Brass 4.01 mm 5.74 mm 5.54 mm M2.5 Bulk