Mounting Hardware – Mouser Japan

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Molded-In Inserts

SI (Standard Inserts) Molded-In Inserts are installed during the molding process, and the inserts are located in the mold cavity by core pins. The core pins are withdrawn when the mold is opened, leaving the inserts permanently encapsulated in the plastic section with only the threads exposed. Inserts installed during the molding process avoid the need for additional procedures or installation equipment. The molded-in inserts include blind threaded inserts (IBA/IBB/IBC), self-locking blind threaded inserts (ILBC), through threaded inserts ( ITA/ITB/ITC), and knurled inserts (STKA/STKB/STKC). Typical applications include electronics (wearables, smartphones, and hand-held 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	Length	Outside Diameter	Thread Size
Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS STKB-440-4 SI 1: ¥78.1 7,570Expected 1/29/2027	Mfr. Part # STKB-440-4 Mouser Part # 153-STKB-440-4	SI	Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS Learn More about SI molded in inserts	Datasheet	7,570Expected 1/29/2027	¥78.1 ¥56.3 ¥45 ¥40.5 View ¥37.7 ¥36.5 ¥34.5 ¥33.7 ¥32.6	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Leaded Brass	0.125 in	0.188 in	4-40
Mounting Hardware MOLD-IN INSERT, BLIND, BRASS IBB-M5-8 SI 1: ¥108 Non-Stocked	Mfr. Part # IBB-M5-8 Mouser Part # 153-IBB-M5-8	SI	Mounting Hardware MOLD-IN INSERT, BLIND, BRASS Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥108 ¥76.9 ¥61.5 ¥55.3 View ¥51.5 ¥50 ¥47.2 ¥46.2 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Leaded Brass	13.48 mm	7.14 mm	M5
Mounting Hardware MOLD-IN INSERT ALUM IBA-M2.5-6 SI 10,000: ¥22.6 Non-Stocked Lead-Time 6 Weeks	Mfr. Part # IBA-M2.5-6 Mouser Part # 153-IBA-M2.5-6	SI	Mounting Hardware MOLD-IN INSERT ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked Lead-Time 6 Weeks	¥22.6 ¥22.1 ¥21.4	Min.: 10,000 Mult.: 1,000	Inserts	Threaded Insert	Aluminum	6.35 mm	4.78 mm	M2.5
Mounting Hardware IBLC-032-8 SI 10,000: ¥292.3 Non-Stocked Lead-Time 4 Weeks	Mfr. Part # IBLC-032-8 Mouser Part # 153-IBLC-032-8	SI	Mounting Hardware Learn More about SI molded in inserts	Datasheet	Non-Stocked Lead-Time 4 Weeks	¥292.3	Min.: 10,000 Mult.: 5,000	Inserts	Threaded Insert		0.25 in		10-32
Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS STKB-0420-6 SI 1: ¥134.5 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # STKB-0420-6 Mouser Part # 153-STKB-0420-6	SI	Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS Learn More about SI molded in inserts	Datasheet	Non-Stocked Lead-Time 12 Weeks	¥134.5 ¥95.5 ¥76.4 ¥68.8 View ¥63.9 ¥62.1 ¥58.5 ¥57.3 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Leaded Brass	0.187 in	0.375 in	1/4-20
Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS STKB-832-6 SI 10,000: ¥47 Non-Stocked Lead-Time 4 Weeks	Mfr. Part # STKB-832-6 Mouser Part # 153-STKB-832-6	SI	Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS Learn More about SI molded in inserts	Datasheet	Non-Stocked Lead-Time 4 Weeks	¥47 ¥46 Quote Quote	Min.: 10,000 Mult.: 1,000	Inserts	Threaded Insert	Leaded Brass	0.187 in	0.25 in	8-32
Mounting Hardware INTERNAL THRD SPACER KNRL S/S STKC-832-4 SI 10,000: ¥72.1 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # STKC-832-4 Mouser Part # 153-STKC-832-4	SI	Mounting Hardware INTERNAL THRD SPACER KNRL S/S Learn More about SI molded in inserts	Datasheet	Non-Stocked Lead-Time 10 Weeks	¥72.1 ¥71.1	Min.: 10,000 Mult.: 1,000	Inserts	Threaded Insert	Stainless Steel	0.125 in	0.25 in	8-32
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-024-10 SI 10,000: ¥38.5 Non-Stocked	Mfr. Part # IBA-024-10 Mouser Part # 153-IBA-024-10	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥38.5 ¥37.7 ¥36.4	Min.: 10,000 Mult.: 500	Inserts	Threaded Insert	Aluminum	0.625 in	0.281 in	10-24
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-024-12 SI 10,000: ¥44.3 Non-Stocked	Mfr. Part # IBA-024-12 Mouser Part # 153-IBA-024-12	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥44.3 ¥43.4 Quote Quote	Min.: 10,000 Mult.: 500	Inserts	Threaded Insert	Aluminum	0.716 in	0.281 in	10-24
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-024-4 SI 10,000: ¥28.7 Non-Stocked	Mfr. Part # IBA-024-4 Mouser Part # 153-IBA-024-4	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥28.7 ¥28.1 ¥27.1	Min.: 10,000 Mult.: 500	Inserts	Threaded Insert	Aluminum	0.356 in	0.281 in	10-24
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-024-6 SI 10,000: ¥29.7 Non-Stocked	Mfr. Part # IBA-024-6 Mouser Part # 153-IBA-024-6	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥29.7 ¥29.1 ¥28.1	Min.: 10,000 Mult.: 500	Inserts	Threaded Insert	Aluminum	0.438 in	0.281 in	10-24
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-032-10 SI 10,000: ¥31.1 Non-Stocked	Mfr. Part # IBA-032-10 Mouser Part # 153-IBA-032-10	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥31.1 ¥30.4 ¥29.4	Min.: 10,000 Mult.: 500	Inserts	Threaded Insert	Aluminum	0.469 in	0.281 in	10-32
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-032-4 SI 10,000: ¥26.2 Non-Stocked	Mfr. Part # IBA-032-4 Mouser Part # 153-IBA-032-4	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥26.2 ¥25.7 ¥24.9	Min.: 10,000 Mult.: 1,000	Inserts	Threaded Insert	Aluminum	0.281 in	0.281 in	10-32
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-0420-10 SI 10,000: ¥47.3 Non-Stocked	Mfr. Part # IBA-0420-10 Mouser Part # 153-IBA-0420-10	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥47.3 ¥46.3 Quote Quote	Min.: 10,000 Mult.: 500	Inserts	Threaded Insert	Aluminum	0.719 in	0.344 in	1/4-20
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-0420-12 SI 10,000: ¥58.6 Non-Stocked	Mfr. Part # IBA-0420-12 Mouser Part # 153-IBA-0420-12	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥58.6 ¥57.5 Quote Quote	Min.: 10,000 Mult.: 500	Inserts	Threaded Insert	Aluminum	0.819 in	0.344 in	1/4-20
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-0420-4 SI 10,000: ¥32.7 Non-Stocked	Mfr. Part # IBA-0420-4 Mouser Part # 153-IBA-0420-4	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥32.7 ¥32.1 ¥31.1	Min.: 10,000 Mult.: 1,000	Inserts	Threaded Insert	Aluminum	0.344 in	0.344 in	1/4-20
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-0518-10 SI 10,000: ¥60 Non-Stocked	Mfr. Part # IBA-0518-10 Mouser Part # 153-IBA-0518-10	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥60 ¥58.6 Quote Quote	Min.: 10,000 Mult.: 500	Inserts	Threaded Insert	Aluminum	0.811 in	0.438 in	5/16-18
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-0518-12 SI 10,000: ¥65.1 Non-Stocked	Mfr. Part # IBA-0518-12 Mouser Part # 153-IBA-0518-12	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥65.1 ¥63.8 Quote Quote	Min.: 10,000 Mult.: 500	Inserts	Threaded Insert	Aluminum	0.949 in	0.438 in	5/16-18
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-0518-4 SI 10,000: ¥46 Non-Stocked	Mfr. Part # IBA-0518-4 Mouser Part # 153-IBA-0518-4	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥46 ¥45 Quote Quote	Min.: 10,000 Mult.: 1,000	Inserts	Threaded Insert	Aluminum	0.438 in	0.438 in	5/16-18
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-0518-6 SI 10,000: ¥51.8 Non-Stocked	Mfr. Part # IBA-0518-6 Mouser Part # 153-IBA-0518-6	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥51.8 ¥50.7 Quote Quote	Min.: 10,000 Mult.: 1,000	Inserts	Threaded Insert	Aluminum	0.594 in	0.438 in	5/16-18
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-0518-8 SI 10,000: ¥66.4 Non-Stocked	Mfr. Part # IBA-0518-8 Mouser Part # 153-IBA-0518-8	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥66.4 ¥65.1 Quote Quote	Min.: 10,000 Mult.: 1,000	Inserts	Threaded Insert	Aluminum	0.719 in	0.438 in	5/16-18
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-0616-10 SI 10,000: ¥86.5 Non-Stocked	Mfr. Part # IBA-0616-10 Mouser Part # 153-IBA-0616-10	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥86.5 Quote Quote	Min.: 10,000 Mult.: 500	Inserts	Threaded Insert	Aluminum	0.935 in	0.5 in	3/8-16
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-0616-12 SI 10,000: ¥89.2 Non-Stocked	Mfr. Part # IBA-0616-12 Mouser Part # 153-IBA-0616-12	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥89.2 Quote Quote	Min.: 10,000 Mult.: 500	Inserts	Threaded Insert	Aluminum	1 in	0.5 in	3/8-16
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-0616-4 SI 10,000: ¥68.9 Non-Stocked	Mfr. Part # IBA-0616-4 Mouser Part # 153-IBA-0616-4	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥68.9 ¥67.9	Min.: 10,000 Mult.: 250	Inserts	Threaded Insert	Aluminum	0.5 in	0.5 in	3/8-16
Mounting Hardware MOLD-IN INSERT, BLIND, ALUM IBA-0616-6 SI 10,000: ¥75.6 Non-Stocked	Mfr. Part # IBA-0616-6 Mouser Part # 153-IBA-0616-6	SI	Mounting Hardware MOLD-IN INSERT, BLIND, ALUM Learn More about SI molded in inserts	Datasheet	Non-Stocked	¥75.6 ¥74.6	Min.: 10,000 Mult.: 1,000	Inserts	Threaded Insert	Aluminum	0.688 in	0.5 in	3/8-16