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-0420 SI 1: £0.78 11,081In 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	11,081In 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 FLANGE INSERT BRASS PFLB-M3-1 SI 1: £0.428 8,454In 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	8,454In 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 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 THERMOPLASTIC INSERT,STAINLESS NFPC-M4 SI 1: £0.601 11,196In 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	11,196In 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 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 POST MOLD INSERT, BRASS PPB-M4-2 SI 1: £0.39 9,790In Stock	Mfr. Part No. PPB-M4-2 Mouser Part No 153-PPB-M4-2	SI	Mounting Fixings POST MOLD INSERT, BRASS Learn More about SI press in inserts	Datasheet	9,790In Stock	£0.39 £0.277 £0.223 £0.20 View £0.183 £0.18 £0.169 £0.166 £0.16	Min.: 1 Mult.: 1	Inserts	Threaded Insert			7.95 mm	5.87 mm	M4
Mounting Fixings THERMOPLASTIC INSERT,STAINLESS NFPC-032 SI 1: £0.586 10,756In 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	10,756In 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 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 THERMOPLASTIC INSERT,STAINLESS NFPC-M8 SI 1: £1.05 3,430In Stock 10,000Expected 12/02/2027	Mfr. Part No. NFPC-M8 Mouser Part No 153-NFPC-M8	SI	Mounting Fixings THERMOPLASTIC INSERT,STAINLESS Learn More about SI press in inserts	Datasheet	3,430In Stock 10,000Expected 12/02/2027	£1.05 £0.788 £0.617 £0.524 View £0.505 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	9.53 mm	9.27 mm	9.53 mm	M8
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 £0.161 £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-440-1 SI 1: £0.361 1,848In 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	1,848In 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-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 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 THERMOPLASTIC INSERT,STAINLESS NFPC-M3 SI 1: £0.503 4,171In Stock 10,000Expected 19/10/2026	Mfr. Part No. NFPC-M3 Mouser Part No 153-NFPC-M3	SI	Mounting Fixings THERMOPLASTIC INSERT,STAINLESS Learn More about SI press in inserts	Datasheet	4,171In Stock 10,000Expected 19/10/2026	£0.503 £0.36 £0.287 £0.259 View £0.24 £0.233 £0.221 £0.216 £0.209	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	4.75 mm	5.84 mm	4.75 mm	M3
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 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-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 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 THERMOPLASTIC INSERT,ALUMINUM NFPA-M4 SI 1: £0.398 292In Stock	Mfr. Part No. NFPA-M4 Mouser Part No 153-NFPA-M4	SI	Mounting Fixings THERMOPLASTIC INSERT,ALUMINUM Learn More about SI press in inserts	Datasheet	292In Stock	£0.398 £0.285 £0.228 £0.206 View £0.19 £0.185 £0.175 £0.171 £0.165	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum	6.35 mm	6.73 mm	6.35 mm	M4
Mounting Fixings THERMOPLASTIC INSERT,STAINLESS NFPC-832 SI 1: £0.705 600In Stock	Mfr. Part No. NFPC-832 Mouser Part No 153-NFPC-832	SI	Mounting Fixings THERMOPLASTIC INSERT,STAINLESS Learn More about SI press in inserts	Datasheet	600In Stock	£0.705 £0.496 £0.397 £0.374 View £0.318 £0.304 £0.298 Quote	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Stainless Steel	0.25 in	0.265 in	0.25 in	8-32
Mounting Fixings POST MOLD FLANGE INSERT ALUM PFLA-440-2 SI 1: £0.353 608In Stock	Mfr. Part No. PFLA-440-2 Mouser Part No 153-PFLA-440-2	SI	Mounting Fixings POST MOLD FLANGE INSERT ALUM Learn More about SI press in inserts	Datasheet	608In Stock	£0.353 £0.25 £0.201 £0.18 View £0.168 £0.163 £0.153 £0.15 £0.145	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum		0.228 in	0.219 in	4-40
Mounting Fixings POST MOLD FLANGE INSERT ALUM PFLA-M3-1 SI 1: £0.346 565In Stock	Mfr. Part No. PFLA-M3-1 Mouser Part No 153-PFLA-M3-1	SI	Mounting Fixings POST MOLD FLANGE INSERT ALUM Learn More about SI press in inserts	Datasheet	565In Stock	£0.346 £0.245 £0.196 £0.177 View £0.164 £0.16 £0.15 £0.148 £0.142	Min.: 1 Mult.: 1	Inserts	Threaded Insert	Aluminum		4.22 mm	5.56 mm	M3
Mounting Fixings POST MOLD FLANGE INSERT BRASS PFLB-M6-1 SI 1: £0.705 140In Stock	Mfr. Part No. PFLB-M6-1 Mouser Part No 153-PFLB-M6-1	SI	Mounting Fixings POST MOLD FLANGE INSERT BRASS Learn More about SI press in inserts	Datasheet	140In Stock	£0.705 £0.529 £0.412 £0.388 View £0.38 £0.368 £0.354 £0.341 £0.337	Min.: 1 Mult.: 1	Inserts	Threaded Insert			9.86 mm	9.53 mm	M6
Mounting Fixings POST MOLD INSERT, BRASS PPB-632-2 SI 1: £0.346 882In Stock	Mfr. Part No. PPB-632-2 Mouser Part No 153-PPB-632-2	SI	Mounting Fixings POST MOLD INSERT, BRASS Learn More about SI press in inserts	Datasheet	882In Stock	£0.346 £0.246 £0.196 £0.177 View £0.164 £0.16 £0.151 £0.148 £0.142	Min.: 1 Mult.: 1	Inserts	Threaded Insert			0.313 in	0.2 in	6-32