Mounting Fixings – Mouser United Kingdom

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Press-In Inserts

SI (Standard Inserts) Press-In Inserts are designed to be installed by pressing the inserts into pre-molded or drilled holes. The installation is accomplished using a standard press at any time during production. These inserts eliminate the need for heat or ultrasonic equipment and molding inserts. The press-in inserts are available in aluminum, brass, steel, and stainless steel materials. Typical applications include electronics (wearable, smartphones, and hand-held devices), automotive, aerospace, defense, medical, transportation, and industrial and recreational equipment.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) 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
Mounting Fixings THERMOPLASTIC INSERT,STAINLESS NFPC-M6 SI 1: £0.736 10,208In Stock 173Expected 06/11/2026	Mfr. Part No. NFPC-M6 Mouser Part No 153-NFPC-M6	SI	Mounting Fixings THERMOPLASTIC INSERT,STAINLESS Learn More about SI press in inserts	Datasheet	10,208In Stock 173Expected 06/11/2026	£0.736 £0.546 £0.43 £0.365 View £0.353 £0.347	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	7.92 mm	8 mm	7.92 mm	M6
Mounting Fixings POST MOLD FLANGE INSERT BRASS PFLB-M5-1 SI 1: £0.555 8,296In Stock	Mfr. Part No. PFLB-M5-1 Mouser Part No 153-PFLB-M5-1	SI	Mounting Fixings POST MOLD FLANGE INSERT BRASS Learn More about SI press in inserts	Datasheet	8,296In Stock	£0.555 £0.394 £0.315 £0.292 View £0.248 £0.241 £0.236 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert			6.86 mm	7.95 mm	M5
Mounting Fixings POST MOLD INSERT, BRASS PPB-M4-1 SI 1: £0.383 9,353In Stock	Mfr. Part No. PPB-M4-1 Mouser Part No 153-PPB-M4-1	SI	Mounting Fixings POST MOLD INSERT, BRASS Learn More about SI press in inserts	Datasheet	9,353In Stock	£0.383 £0.273 £0.218 £0.196 View £0.183 £0.178 £0.168 £0.163 £0.158	Min.: 1 Mult.: 1	Inserts	Threaded Insert			6.35 mm	5.87 mm	M4
Mounting Fixings THERMOPLASTIC INSERT,STAINLESS NFPC-0420 SI 1: £0.78 11,071In Stock	Mfr. Part No. NFPC-0420 Mouser Part No 153-NFPC-0420	SI	Mounting Fixings THERMOPLASTIC INSERT,STAINLESS Learn More about SI press in inserts	Datasheet	11,071In Stock	£0.78 £0.588 £0.457 £0.431 View £0.421 £0.407 £0.394 £0.379 £0.373	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.312 in	0.315 in	0.312 in	1/4-20
Mounting Fixings POST MOLD INSERT, BRASS PPB-M3-2 SI 1: £0.428 10,392In Stock	Mfr. Part No. PPB-M3-2 Mouser Part No 153-PPB-M3-2	SI	Mounting Fixings POST MOLD INSERT, BRASS Learn More about SI press in inserts	Datasheet	10,392In Stock	£0.428 £0.302 £0.242 £0.217 View £0.201 £0.196 £0.185 £0.181 £0.175	Min.: 1 Mult.: 1	Inserts	Threaded Insert			6.35 mm	4.29 mm	M3
Mounting Fixings POST MOLD FLANGE INSERT BRASS PFLB-M3-1 SI 1: £0.428 8,304In Stock	Mfr. Part No. PFLB-M3-1 Mouser Part No 153-PFLB-M3-1	SI	Mounting Fixings POST MOLD FLANGE INSERT BRASS Learn More about SI press in inserts	Datasheet	8,304In Stock	£0.428 £0.302 £0.242 £0.228 View £0.193 £0.185 £0.181 £0.175	Min.: 1 Mult.: 1	Inserts	Threaded Insert			4.22 mm	5.56 mm	M3
Mounting Fixings THERMOPLASTIC INSERT,STAINLESS NFPC-032 SI 1: £0.586 10,640In Stock	Mfr. Part No. NFPC-032 Mouser Part No 153-NFPC-032	SI	Mounting Fixings THERMOPLASTIC INSERT,STAINLESS Learn More about SI press in inserts	Datasheet	10,640In Stock	£0.586 £0.437 £0.34 £0.32 View £0.313 £0.302 £0.292 £0.282 £0.277	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.25 in	0.265 in	0.25 in	10-32
Mounting Fixings THERMOPLASTIC INSERT,STAINLESS NFPC-M5 SI 1: £0.728 9,375In Stock	Mfr. Part No. NFPC-M5 Mouser Part No 153-NFPC-M5	SI	Mounting Fixings THERMOPLASTIC INSERT,STAINLESS Learn More about SI press in inserts	Datasheet	9,375In Stock	£0.728 £0.514 £0.411 £0.371 View £0.344 £0.334 £0.315 £0.308 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	6.35 mm	6.73 mm	6.35 mm	M5
Mounting Fixings THERMOPLASTIC INSERT,STAINLESS NFPC-M4 SI 1: £0.601 11,182In Stock	Mfr. Part No. NFPC-M4 Mouser Part No 153-NFPC-M4	SI	Mounting Fixings THERMOPLASTIC INSERT,STAINLESS Learn More about SI press in inserts	Datasheet	11,182In Stock	£0.601 £0.446 £0.347 £0.327 View £0.32 £0.309 £0.298 £0.287 £0.284	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	6.35 mm	6.73 mm	6.35 mm	M4
Mounting Fixings POST MOLD INSERT, BRASS PPB-M3-1 SI 1: £0.338 9,049In Stock	Mfr. Part No. PPB-M3-1 Mouser Part No 153-PPB-M3-1	SI	Mounting Fixings POST MOLD INSERT, BRASS Learn More about SI press in inserts	Datasheet	9,049In Stock	£0.338 £0.244 £0.195 £0.175 View £0.158 £0.149 £0.146 £0.141	Min.: 1 Mult.: 1	Inserts	Threaded Insert			4.77 mm	4.29 mm	M3
Mounting Fixings POST MOLD FLANGE INSERT BRASS PFLB-632-1 SI 1: £0.368 10,488In Stock	Mfr. Part No. PFLB-632-1 Mouser Part No 153-PFLB-632-1	SI	Mounting Fixings POST MOLD FLANGE INSERT BRASS Learn More about SI press in inserts	Datasheet	10,488In Stock	£0.368 £0.256 £0.205 £0.193 View £0.163 £0.157 £0.153 £0.148	Min.: 1 Mult.: 1	Inserts	Threaded Insert			0.222 in	0.25 in	6-32
Mounting Fixings NFPA-M6 SI 1: £0.623 445In Stock	Mfr. Part No. NFPA-M6 Mouser Part No 153-NFPA-M6	SI	Mounting Fixings Learn More about SI press in inserts	Datasheet	445In Stock	£0.623 £0.447 £0.357 £0.322 View £0.299 £0.291 £0.274 £0.268 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert					M6
Mounting Fixings POST MOLD INSERT, BRASS PPB-632-1 SI 1: £0.33 8,146In Stock	Mfr. Part No. PPB-632-1 Mouser Part No 153-PPB-632-1	SI	Mounting Fixings POST MOLD INSERT, BRASS Learn More about SI press in inserts	Datasheet	8,146In Stock	£0.33 £0.237 £0.19 £0.17 View £0.158 £0.154 £0.146 £0.142 £0.137	Min.: 1 Mult.: 1	Inserts	Threaded Insert			0.25 in	0.2 in	6-32
Mounting Fixings POST MOLD INSERT, BRASS PKB-440 SI 1: £0.45 1,028In Stock 10,000Expected 19/11/2026	Mfr. Part No. PKB-440 Mouser Part No 153-PKB-440	SI	Mounting Fixings POST MOLD INSERT, BRASS Learn More about SI press in inserts	Datasheet	1,028In Stock 10,000Expected 19/11/2026	£0.45 £0.323 £0.259 £0.233 View £0.217 £0.21 £0.198 £0.194 £0.188	Min.: 1 Mult.: 1	Inserts	Threaded Insert			0.188 in	0.156 in	4-40
Mounting Fixings POST MOLD INSERT, ALUM PPA-632-1 SI 1: £0.308 840In Stock	Mfr. Part No. PPA-632-1 Mouser Part No 153-PPA-632-1	SI	Mounting Fixings POST MOLD INSERT, ALUM Learn More about SI press in inserts	Datasheet	840In Stock	£0.308 £0.22 £0.176 £0.158 View £0.148 £0.143 £0.135 £0.132 £0.127	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum		0.25 in	0.2 in	6-32
Mounting Fixings POST MOLD INSERT, BRASS PKB-632 SI 1: £0.428 1,268In Stock	Mfr. Part No. PKB-632 Mouser Part No 153-PKB-632	SI	Mounting Fixings POST MOLD INSERT, BRASS Learn More about SI press in inserts	Datasheet	1,268In Stock	£0.428 £0.304 £0.244 £0.229 View £0.195 £0.186 £0.182 £0.175	Min.: 1 Mult.: 1	Inserts	Threaded Insert			0.25 in	0.188 in	6-32
Mounting Fixings POST MOLD FLANGE INSERT BRASS PFLB-440-1 SI 1: £0.361 1,748In Stock	Mfr. Part No. PFLB-440-1 Mouser Part No 153-PFLB-440-1	SI	Mounting Fixings POST MOLD FLANGE INSERT BRASS Learn More about SI press in inserts	Datasheet	1,748In Stock	£0.361 £0.256 £0.205 £0.185 View £0.171 £0.167 £0.157 £0.153 £0.148	Min.: 1 Mult.: 1	Inserts	Threaded Insert			0.166 in	0.219 in	4-40
Mounting Fixings POST MOLD INSERT, ALUM PPA-M3-1 SI 1: £0.285 10,105In Stock	Mfr. Part No. PPA-M3-1 Mouser Part No 153-PPA-M3-1	SI	Mounting Fixings POST MOLD INSERT, ALUM Learn More about SI press in inserts	Datasheet	10,105In Stock	£0.285 £0.203 £0.162 £0.147 View £0.133 £0.132 £0.124 £0.12 £0.117	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum		4.77 mm	4.29 mm	M3
Mounting Fixings POST MOLD FLANGE INSERT BRASS PFLB-832-1 SI 1: £0.45 6,696In Stock	Mfr. Part No. PFLB-832-1 Mouser Part No 153-PFLB-832-1	SI	Mounting Fixings POST MOLD FLANGE INSERT BRASS Learn More about SI press in inserts	Datasheet	6,696In Stock	£0.45 £0.315 £0.253 £0.228 View £0.211 £0.205 £0.193 £0.189 £0.182	Min.: 1 Mult.: 1	Inserts	Threaded Insert			0.246 in	0.281 in	8-32
Mounting Fixings POST MOLD FLANGE INSERT ALUM PFLA-M5-2 SI 1: £0.398 2,750In Stock	Mfr. Part No. PFLA-M5-2 Mouser Part No 153-PFLA-M5-2	SI	Mounting Fixings POST MOLD FLANGE INSERT ALUM Learn More about SI press in inserts	Datasheet	2,750In Stock	£0.398 £0.286 £0.229 £0.206 View £0.191 £0.186 £0.175 £0.171 £0.166	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum		8.43 mm	7.95 mm	M5
Mounting Fixings POST MOLD-IN INSERT, ALUM PKA-M4 SI 1: £0.30 429In Stock	Mfr. Part No. PKA-M4 Mouser Part No 153-PKA-M4	SI	Mounting Fixings POST MOLD-IN INSERT, ALUM Learn More about SI press in inserts	Datasheet	429In Stock	£0.30 £0.21 £0.168 £0.158 View £0.134 £0.128 £0.126 £0.12	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum		7.92 mm	5.56 mm	M4
Mounting Fixings NFPA-M5 SI 1: £0.398 294In Stock	Mfr. Part No. NFPA-M5 Mouser Part No 153-NFPA-M5	SI	Mounting Fixings Learn More about SI press in inserts	Datasheet	294In Stock	£0.398 £0.282 £0.226 £0.212 View £0.18 £0.173 £0.169 £0.163	Min.: 1 Mult.: 1	Inserts	Threaded Insert					M5
Mounting Fixings THERMOPLASTIC INSERT,STAINLESS NFPC-632 SI 1: £0.48 3,710In Stock 6,216Expected 06/11/2026	Mfr. Part No. NFPC-632 Mouser Part No 153-NFPC-632	SI	Mounting Fixings THERMOPLASTIC INSERT,STAINLESS Learn More about SI press in inserts	Datasheet	3,710In Stock 6,216Expected 06/11/2026	£0.48 £0.338 £0.271 £0.255 View £0.217 £0.207 £0.203 £0.196	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.187 in	0.23 in	0.187 in	6-32
Mounting Fixings POST MOLD FLANGE INSERT ALUM PFLA-M4-2 SI 1: £0.338 389In Stock	Mfr. Part No. PFLA-M4-2 Mouser Part No 153-PFLA-M4-2	SI	Mounting Fixings POST MOLD FLANGE INSERT ALUM Learn More about SI press in inserts	Datasheet	389In Stock	£0.338 £0.237 £0.19 £0.179 View £0.152 £0.145 £0.142 £0.137	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum		7.06 mm	7.14 mm	M4
Mounting Fixings POST MOLD INSERT, BRASS PKB-M5 SI 1: £0.571 490In Stock	Mfr. Part No. PKB-M5 Mouser Part No 153-PKB-M5	SI	Mounting Fixings POST MOLD INSERT, BRASS Learn More about SI press in inserts	Datasheet	490In Stock	£0.571 £0.402 £0.322 £0.303 View £0.258 £0.246 £0.241 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert			9.53 mm	6.35 mm	M5