Screws & Fasteners – Mouser India

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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 (INR) 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 SS-M5-2ZI, RAMP THREAD SS-RTM5-2ZI PEM 1: ₹24.84 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	10,652In Stock	₹24.84 ₹17.96 ₹16.24 ₹14.14 View ₹12.99 ₹12.80 ₹10.80 ₹10.22	Min.: 1 Mult.: 1	Nuts	Self Clinching	M5 x 0.8		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-632-0ZI, RAMP THREAD S-RT632-0ZI PEM 1: ₹21.02 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	10,994In Stock	₹21.02 ₹15.76 ₹14.24 ₹12.42 View ₹11.37 ₹10.89 ₹9.75 ₹9.46 ₹8.98	Min.: 1 Mult.: 1	Nuts	Self Clinching	6-32		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-0420-0ZI, RAMP THREAD S-RT0420-0ZI PEM 1: ₹42.99 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	364In Stock	₹42.99 ₹31.34 ₹28.47 ₹24.94 View ₹23.03 ₹22.93 ₹19.39 ₹19.11	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: ₹21.97 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	550In Stock	₹21.97 ₹15.86 ₹14.33 ₹12.52 View ₹11.46 ₹11.27 ₹9.55 ₹9.08	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: ₹45.86 1,085In Stock 10,000Expected 06-01-2027	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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	1,085In Stock 10,000Expected 06-01-2027	₹45.86 ₹34.30 ₹31.15 ₹27.32 View ₹25.13 ₹23.69 ₹22.17 ₹21.78 ₹20.92	Min.: 1 Mult.: 1	Nuts	Self Clinching	M6 x 1		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners SS-RT032-1ZI PEM 1: ₹24.84 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	997In Stock	₹24.84 ₹18.92 ₹17.10 ₹14.90 View ₹13.66 ₹12.80 ₹12.13 ₹11.46 ₹10.89	Min.: 1 Mult.: 1	Nuts	Self Clinching	10-32		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-440-0ZI, RAMP THREAD S-RT440-0ZI PEM 1: ₹21.02 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	9,373In Stock	₹21.02 ₹15.96 ₹14.33 ₹12.32 View ₹11.27 ₹11.08 ₹9.27 ₹8.98	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: ₹21.02 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	8,926In Stock	₹21.02 ₹15.96 ₹14.33 ₹12.32 View ₹11.27 ₹11.08 ₹9.27 ₹8.98	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: ₹24.84 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	29In Stock	₹24.84 ₹19.20 ₹17.39 ₹15.10 View ₹13.85 ₹12.99 ₹12.23 ₹11.56 ₹10.99	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: ₹24.84 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	92In Stock	₹24.84 ₹18.82 ₹17.01 ₹14.71 View ₹13.57 ₹12.71 ₹12.04 ₹11.37 ₹10.80	Min.: 1 Mult.: 1	Nuts	Self Clinching	M5 x 0.8		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-M6-00ZI, RAMP THREAD S-RTM6-00ZI PEM 1: ₹44.90 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	6,255In Stock	₹44.90 ₹33.92 ₹30.76 ₹26.94 View ₹24.84 ₹23.41 ₹22.17 ₹21.50 ₹20.73	Min.: 1 Mult.: 1	Nuts	Self Clinching	M6 x 1		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-M3-1ZI, RAMP THREAD S-RTM3-1ZI PEM 1: ₹21.02 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	9,441In Stock	₹21.02 ₹15.67 ₹14.14 ₹12.32 View ₹11.27 ₹11.18 ₹9.36 ₹8.98	Min.: 1 Mult.: 1	Nuts	Self Clinching	M3 x 0.5	4.22 mm	Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-M6-1ZI, RAMP THREAD S-RTM6-1ZI PEM 1: ₹44.90 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	16,076In Stock	₹44.90 ₹33.06 ₹30.00 ₹26.27 View ₹24.27 ₹22.93 ₹19.39	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: ₹55.41 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	374In Stock	₹55.41 ₹41.56 ₹37.74 ₹33.06 View ₹30.48 ₹28.76 ₹27.23 ₹26.37 ₹25.41	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: ₹55.41 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	2,461In Stock	₹55.41 ₹41.56 ₹37.74 ₹33.06 View ₹30.48 ₹28.76 ₹27.23 ₹26.37 ₹25.41	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: ₹20.06 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	540In Stock	₹20.06 ₹15.67 ₹14.14 ₹12.32 View ₹11.27 ₹10.60 ₹10.03 ₹9.46 ₹8.98	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: ₹21.97 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	680In Stock	₹21.97 ₹16.82 ₹15.19 ₹13.18 View ₹12.13 ₹11.37 ₹10.70 ₹10.13 ₹9.65	Min.: 1 Mult.: 1	Nuts	Self Clinching	M4 x 0.7		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-0420-2ZI, RAMP THREAD S-RT0420-2ZI PEM 1: ₹45.86 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	2In Stock	₹45.86 ₹34.30 ₹31.15 ₹27.32 View ₹25.13 ₹23.69 ₹22.45 ₹21.78 ₹20.92	Min.: 1 Mult.: 1	Nuts	Self Clinching	1/4-20		Carbon Steel	Zinc	Round, Knurled
Screws & Fasteners S-RM4-2ZI, RAMP THREAD S-RTM4-2ZI PEM 1: ₹21.97 9,993Expected 25-11-2026	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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	9,993Expected 25-11-2026	₹21.97 ₹15.86 ₹14.33 ₹12.42 View ₹11.46 ₹11.27 ₹9.46 ₹8.98	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: ₹20.45 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	66,000Factory Stock Available More Info Available	₹20.45	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: ₹8.98 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	24,950Factory Stock Available More Info Available	₹8.98	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: ₹9.65 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	14,920Factory Stock Available More Info Available	₹9.65	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: ₹20.45 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	13,155Factory Stock Available More Info Available	₹20.45	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: ₹10.99 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	93,000Factory Stock Available More Info Available	₹10.99	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: ₹8.98 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 This item may require additional import fees and documentation. Customs delays may also occur.	Datasheet	Non-Stocked Lead-Time 20 Weeks	₹8.98	Min.: 10,000 Mult.: 1,000	Nuts	Self Clinching	4-40		Carbon Steel	Zinc	Round, Knurled

RT™ Free-Running Locknuts

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