Screws & Fasteners – Mouser Poland

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RT™ Free-Running Locknuts

PEM RT™ Free-Running Locknuts feature all-metal construction and are resistant to vibrational loosening. These locknuts from PEM allow the screw to turn freely until a clamp load is applied, and the modified thread angle on the loaded flank provides a vibration-resistant locking feature. The back side of the panel is flush or sub-flush for screw installation, and the locking feature reusability is not affected by the number of on/off cycles.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PLN) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Thread Size	Length	Material	Plating	Screw Head
Screws & Fasteners S-M6-00ZI, RAMP THREAD S-RTM6-00ZI PEM 1: 1,78 zł 6 255In Stock	Mfr. Part No. S-RTM6-00ZI Mouser Part No 153-S-RTM6-00ZI	PEM	Screws & Fasteners S-M6-00ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	6 255In Stock	1,78 zł 1,34 zł 1,22 zł 1,07 zł View 0,986 zł 0,928 zł 0,88 zł 0,854 zł 0,823 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	M6 x 1		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-440-0ZI, RAMP THREAD S-RT440-0ZI PEM 1: 0,832 zł 9 373In Stock	Mfr. Part No. S-RT440-0ZI Mouser Part No 153-S-RT440-0ZI	PEM	Screws & Fasteners S-440-0ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	9 373In Stock	0,832 zł 0,634 zł 0,568 zł 0,488 zł View 0,444 zł 0,44 zł 0,365 zł 0,356 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	4-40		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-M3-2ZI, RAMP THREAD S-RTM3-2ZI PEM 1: 0,832 zł 8 926In Stock	Mfr. Part No. S-RTM3-2ZI Mouser Part No 153-S-RTM3-2ZI	PEM	Screws & Fasteners S-M3-2ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	8 926In Stock	0,832 zł 0,634 zł 0,568 zł 0,488 zł View 0,444 zł 0,44 zł 0,365 zł 0,356 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	M3 x 0.5	4.22 mm	Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners SS-RT032-2ZI PEM 1: 0,986 zł 29In Stock	Mfr. Part No. SS-RT032-2ZI Mouser Part No 153-SS-RT032-2ZI	PEM	Screws & Fasteners Learn More about PEM rt free running locknuts	Datasheet	29In Stock	0,986 zł 0,761 zł 0,691 zł 0,598 zł View 0,55 zł 0,515 zł 0,484 zł 0,458 zł 0,436 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	10-32		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners SS-M5-0ZI, RAMP THREAD SS-RTM5-0ZI PEM 1: 0,986 zł 92In Stock	Mfr. Part No. SS-RTM5-0ZI Mouser Part No 153-SS-RTM5-0ZI	PEM	Screws & Fasteners SS-M5-0ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	92In Stock	0,986 zł 0,744 zł 0,673 zł 0,581 zł View 0,537 zł 0,502 zł 0,475 zł 0,449 zł 0,427 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	M5 x 0.8		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-M3-1ZI, RAMP THREAD S-RTM3-1ZI PEM 1: 0,832 zł 9 441In Stock	Mfr. Part No. S-RTM3-1ZI Mouser Part No 153-S-RTM3-1ZI	PEM	Screws & Fasteners S-M3-1ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	9 441In Stock	0,832 zł 0,62 zł 0,559 zł 0,488 zł View 0,444 zł 0,37 zł 0,356 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	M3 x 0.5	4.22 mm	Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners SS-M5-2ZI, RAMP THREAD SS-RTM5-2ZI PEM 1: 0,986 zł 10 652In Stock	Mfr. Part No. SS-RTM5-2ZI Mouser Part No 153-SS-RTM5-2ZI	PEM	Screws & Fasteners SS-M5-2ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	10 652In Stock	0,986 zł 0,713 zł 0,642 zł 0,559 zł View 0,515 zł 0,506 zł 0,427 zł 0,405 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	M5 x 0.8		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-0420-0ZI, RAMP THREAD S-RT0420-0ZI PEM 1: 1,70 zł 364In Stock	Mfr. Part No. S-RT0420-0ZI Mouser Part No 153-S-RT0420-0ZI	PEM	Screws & Fasteners S-0420-0ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	364In Stock	1,70 zł 1,24 zł 1,13 zł 0,986 zł View 0,911 zł 0,906 zł 0,77 zł 0,757 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	1/4-20		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-832-2ZI, RAMP THREAD S-RT832-2ZI PEM 1: 0,871 zł 550In Stock	Mfr. Part No. S-RT832-2ZI Mouser Part No 153-S-RT832-2ZI	PEM	Screws & Fasteners S-832-2ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	550In Stock	0,871 zł 0,629 zł 0,568 zł 0,497 zł View 0,453 zł 0,444 zł 0,378 zł 0,361 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	8-32		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-M6-2ZI, RAMP THREAD S-RTM6-2ZI PEM 1: 1,82 zł 1 085In Stock 10 000Expected 1/6/2027	Mfr. Part No. S-RTM6-2ZI Mouser Part No 153-S-RTM6-2ZI	PEM	Screws & Fasteners S-M6-2ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	1 085In Stock 10 000Expected 1/6/2027	1,82 zł 1,36 zł 1,23 zł 1,08 zł View 0,994 zł 0,937 zł 0,88 zł 0,862 zł 0,827 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	M6 x 1		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners SS-RT032-1ZI PEM 1: 0,986 zł 997In Stock	Mfr. Part No. SS-RT032-1ZI Mouser Part No 153-SS-RT032-1ZI	PEM	Screws & Fasteners Learn More about PEM rt free running locknuts	Datasheet	997In Stock	0,986 zł 0,748 zł 0,678 zł 0,59 zł View 0,541 zł 0,506 zł 0,48 zł 0,453 zł 0,431 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	10-32		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-632-0ZI, RAMP THREAD S-RT632-0ZI PEM 1: 0,832 zł 10 994In Stock	Mfr. Part No. S-RT632-0ZI Mouser Part No 153-S-RT632-0ZI	PEM	Screws & Fasteners S-632-0ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	10 994In Stock	0,832 zł 0,625 zł 0,563 zł 0,493 zł View 0,449 zł 0,431 zł 0,387 zł 0,374 zł 0,356 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	6-32		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-0420-2ZI, RAMP THREAD S-RT0420-2ZI PEM 1: 1,82 zł 2In Stock	Mfr. Part No. S-RT0420-2ZI Mouser Part No 153-S-RT0420-2ZI	PEM	Screws & Fasteners S-0420-2ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	2In Stock	1,82 zł 1,36 zł 1,23 zł 1,08 zł View 0,994 zł 0,937 zł 0,889 zł 0,862 zł 0,827 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	1/4-20		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-M6-1ZI, RAMP THREAD S-RTM6-1ZI PEM 1: 1,78 zł 16 076In Stock	Mfr. Part No. S-RTM6-1ZI Mouser Part No 153-S-RTM6-1ZI	PEM	Screws & Fasteners S-M6-1ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	16 076In Stock	1,78 zł 1,31 zł 1,19 zł 1,04 zł View 0,959 zł 0,906 zł 0,77 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	M6 x 1		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-0518-1ZI, RAMP THREAD S-RT0518-1ZI PEM 1: 2,20 zł 374In Stock	Mfr. Part No. S-RT0518-1ZI Mouser Part No 153-S-RT0518-1ZI	PEM	Screws & Fasteners S-0518-1ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	374In Stock	2,20 zł 1,65 zł 1,50 zł 1,31 zł View 1,21 zł 1,14 zł 1,08 zł 1,04 zł 1,01 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	5/16-18		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-0518-2ZI, RAMP THREAD S-RT0518-2ZI PEM 1: 2,20 zł 2 461In Stock	Mfr. Part No. S-RT0518-2ZI Mouser Part No 153-S-RT0518-2ZI	PEM	Screws & Fasteners S-0518-2ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	2 461In Stock	2,20 zł 1,65 zł 1,50 zł 1,31 zł View 1,21 zł 1,14 zł 1,08 zł 1,04 zł 1,01 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	5/16-18		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-632-2ZI, RAMP THREAD S-RT632-2ZI PEM 1: 0,796 zł 540In Stock	Mfr. Part No. S-RT632-2ZI Mouser Part No 153-S-RT632-2ZI	PEM	Screws & Fasteners S-632-2ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	540In Stock	0,796 zł 0,62 zł 0,559 zł 0,488 zł View 0,444 zł 0,418 zł 0,396 zł 0,374 zł 0,356 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	6-32		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-M4-0ZI, RAMP THREAD S-RTM4-0ZI PEM 1: 0,871 zł 680In Stock	Mfr. Part No. S-RTM4-0ZI Mouser Part No 153-S-RTM4-0ZI	PEM	Screws & Fasteners S-M4-0ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	680In Stock	0,871 zł 0,664 zł 0,603 zł 0,524 zł View 0,48 zł 0,449 zł 0,422 zł 0,40 zł 0,383 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	M4 x 0.7		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-RM4-2ZI, RAMP THREAD S-RTM4-2ZI PEM 1: 0,871 zł 9 993Expected 11/25/2026	Mfr. Part No. S-RTM4-2ZI Mouser Part No 153-S-RTM4-2ZI	PEM	Screws & Fasteners S-RM4-2ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	9 993Expected 11/25/2026	0,871 zł 0,629 zł 0,568 zł 0,493 zł View 0,453 zł 0,444 zł 0,374 zł 0,356 zł	Min.: 1 Mult.: 1	Nuts	Self Clinching	M4 x 0.7		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-0420-1ZI, RAMP THREAD S-RT0420-1ZI PEM 10 000: 0,81 zł 66 000Factory Stock Available	Mfr. Part No. S-RT0420-1ZI Mouser Part No 153-S-RT0420-1ZI	PEM	Screws & Fasteners S-0420-1ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	66 000Factory Stock Available More Info Available	0,81 zł	Min.: 10 000 Mult.: 1 000	Nuts	Self Clinching	1/4-20		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-440-1ZI, RAMP THREAD S-RT440-1ZI PEM 10 000: 0,356 zł 24 950Factory Stock Available	Mfr. Part No. S-RT440-1ZI Mouser Part No 153-S-RT440-1ZI	PEM	Screws & Fasteners S-440-1ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	24 950Factory Stock Available More Info Available	0,356 zł	Min.: 10 000 Mult.: 1 000	Nuts	Self Clinching	4-40		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-832-1ZI, RAMP THREAD S-RT832-1ZI PEM 10 000: 0,383 zł 14 920Factory Stock Available	Mfr. Part No. S-RT832-1ZI Mouser Part No 153-S-RT832-1ZI	PEM	Screws & Fasteners S-832-1ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	14 920Factory Stock Available More Info Available	0,383 zł	Min.: 10 000 Mult.: 1 000	Nuts	Self Clinching	8-32		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-M6-0ZI, RAMP THREAD S-RTM6-0ZI PEM 10 000: 0,81 zł 13 155Factory Stock Available	Mfr. Part No. S-RTM6-0ZI Mouser Part No 153-S-RTM6-0ZI	PEM	Screws & Fasteners S-M6-0ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	13 155Factory Stock Available More Info Available	0,81 zł	Min.: 10 000 Mult.: 1 000	Nuts	Self Clinching	M6 x 1		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners SS-RT032-0ZI PEM 10 000: 0,436 zł 93 000Factory Stock Available	Mfr. Part No. SS-RT032-0ZI Mouser Part No 153-SS-RT032-0ZI	PEM	Screws & Fasteners Learn More about PEM rt free running locknuts	Datasheet	93 000Factory Stock Available More Info Available	0,436 zł	Min.: 10 000 Mult.: 1 000	Nuts	Self Clinching	10-32		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-440-2ZI, RAMP THREAD S-RT440-2ZI PEM 10 000: 0,356 zł Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. S-RT440-2ZI Mouser Part No 153-S-RT440-2ZI	PEM	Screws & Fasteners S-440-2ZI, RAMP THREAD Learn More about PEM rt free running locknuts	Datasheet	Non-Stocked Lead-Time 20 Weeks	0,356 zł	Min.: 10 000 Mult.: 1 000	Nuts	Self Clinching	4-40		Carbon Steel	Zinc	Round, Knurled

RT™ Free-Running Locknuts

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