DIN 980V Lock Nut

DIN 980 V Lock Nut specifies all-metal hexagon locknuts with a slotted clamping section at the top. The V designation indicates a closed clamping design that deforms during installation, creating prevailing torque that effectively resists loosening under severe vibration and dynamic loads.

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Product introduction

Common Specifications

Materials	Carbon steel
Class	8, 10, 12
Range	M3 – M36
Thread	Coarse , Fine, Extra Fine, Special-Fine
Surface	Plain, zinc plated, hot-dip galvanized, GEOMET, ZINC-NICKLE, DACROMATE etc.

Key Features

Slotted clamping section provides all-metal prevailing torque
Closed design (V version) for consistent locking performance
Suitable for high-temperature applications up to 300°C
Reusable with maintained locking torque
Conforms to DIN 980 V specifications

All-metal locknut

Application industry

Heavy machinery and construction equipment
Automotive powertrain and exhaust systems
High-temperature industrial applications
Off-highway vehicles

data table

product-650-228

Size	M3	M4	M5	M6	M8	M10	M12	M14	M16	M18	M20	M22	M24	M27	M30	M33	M36	M39
Coase	0.5	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5	2.5	3	3	3.5	3.5	4	4
Fine	0.35	0.5	0.5	0.75	1	1.25	1.5	1.5	1.5	2	2	2	2	2	3	3	3	3
Extra Fine	-	-	-	-	0.75	1	1.25	1	1	1.5	1.5	1.5	1.5	1.5	2	2	-	-
s Min (mm)	5.32	6.78	7.78	9.78	12.73	16.73	18.67	21.67	23.67	26.16	29.16	31	35	40	45	49	53.8	58.8
s Max (mm)	5.5	7	8	10	13	17	19	22	24	27	30	32	36	41	46	50	55	60
e Min (mm)	6.01	7.66	8.79	11.05	14.38	18.9	21.1	24.49	26.75	29.56	32.95	35.03	39.55	45.2	50.85	55.37	60.79	66.44
m Min (mm)	3.4	3.9	4.8	5.7	7.5	9	11	12	14	16	18	20	22	25	28	31	34	37
m Max (mm)	3.7	4.2	5.1	6	8	10	12	14	16	18	20	22	24	27	30	33	36	39

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