INA ZM / ZMA Precision Locknuts (M6-M150)

INA precision locknuts series ZM and wider series ZMA with radial set screws, for axial location and preload setting of crossed roller bearings XV and other precision bearing arrangements.

Key features

Radial set screws lock the nut on the thread
ZMA versions with larger outside diameter and width for higher axial loads
Fine metric threads from M6x0.5 upward
Tightening torque, axial load and breakaway torque data listed per size

Specifications

Series	ZM, ZMA
Locking	Radial set screws
Application	Crossed roller bearings XV
Source	INA Crossed Roller Bearings for High Precision Applications (KSX), p. 46, 59-60

ZM 06		Thread: M6x0.5 \| D: 16 mm \| h: 8 mm \| Mass: 0.01 kg
ZM 08		Thread: M8x0.75 \| D: 16 mm \| h: 8 mm \| Mass: 0.01 kg
ZM 10		Thread: M10x1 \| D: 18 mm \| h: 8 mm \| Mass: 0.01 kg
ZM 12		Thread: M12x1 \| D: 22 mm \| h: 8 mm \| Mass: 0.015 kg
ZM 15		Thread: M15x1 \| D: 25 mm \| h: 8 mm \| Mass: 0.018 kg
ZMA 15/33		Thread: M15x1 \| D: 33 mm \| h: 16 mm \| Mass: 0.08 kg
ZM 17		Thread: M17x1 \| D: 28 mm \| h: 10 mm \| Mass: 0.028 kg
ZM 20		Thread: M20x1 \| D: 32 mm \| h: 10 mm \| Mass: 0.035 kg
ZMA 20/38		Thread: M20x1 \| D: 38 mm \| h: 20 mm \| Mass: 0.12 kg
ZMA 20/52		Thread: M20x1 \| D: 52 mm \| h: 25 mm \| Mass: 0.32 kg
ZM 25		Thread: M25x1.5 \| D: 38 mm \| h: 12 mm \| Mass: 0.055 kg
ZMA 25/45		Thread: M25x1.5 \| D: 45 mm \| h: 20 mm \| Mass: 0.16 kg
ZMA 25/58		Thread: M25x1.5 \| D: 58 mm \| h: 28 mm \| Mass: 0.43 kg
ZM 30		Thread: M30x1.5 \| D: 45 mm \| h: 12 mm \| Mass: 0.075 kg
ZMA 30/52		Thread: M30x1.5 \| D: 52 mm \| h: 22 mm \| Mass: 0.22 kg
ZMA 30/65		Thread: M30x1.5 \| D: 65 mm \| h: 30 mm \| Mass: 0.55 kg
ZM 35		Thread: M35x1.5 \| D: 52 mm \| h: 12 mm \| Mass: 0.099 kg
ZMA 35/58		Thread: M35x1.5 \| D: 58 mm \| h: 22 mm \| Mass: 0.26 kg
ZMA 35/70		Thread: M35x1.5 \| D: 70 mm \| h: 30 mm \| Mass: 0.61 kg
ZM 40		Thread: M40x1.5 \| D: 58 mm \| h: 14 mm \| Mass: 0.14 kg
ZMA 40/62		Thread: M40x1.5 \| D: 62 mm \| h: 22 mm \| Mass: 0.27 kg
ZMA 40/75		Thread: M40x1.5 \| D: 75 mm \| h: 30 mm \| Mass: 0.67 kg
ZM 45		Thread: M45x1.5 \| D: 65 mm \| h: 14 mm \| Mass: 0.17 kg
ZMA 45/68		Thread: M45x1.5 \| D: 68 mm \| h: 24 mm \| Mass: 0.35 kg
ZMA 45/85		Thread: M45x1.5 \| D: 85 mm \| h: 32 mm \| Mass: 0.92 kg
ZM 50		Thread: M50x1.5 \| D: 70 mm \| h: 14 mm \| Mass: 0.19 kg
ZMA 50/75		Thread: M50x1.5 \| D: 75 mm \| h: 25 mm \| Mass: 0.43 kg
ZMA 50/92		Thread: M50x1.5 \| D: 92 mm \| h: 32 mm \| Mass: 1.06 kg
ZM 55		Thread: M55x2 \| D: 75 mm \| h: 16 mm \| Mass: 0.23 kg
ZMA 55/98		Thread: M55x2 \| D: 98 mm \| h: 32 mm \| Mass: 1.17 kg
ZM 60		Thread: M60x2 \| D: 80 mm \| h: 16 mm \| Mass: 0.25 kg
ZMA 60/98		Thread: M60x2 \| D: 98 mm \| h: 32 mm \| Mass: 1.07 kg
ZM 65		Thread: M65x2 \| D: 85 mm \| h: 16 mm \| Mass: 0.27 kg
ZMA 65/105		Thread: M65x2 \| D: 105 mm \| h: 32 mm \| Mass: 1.21 kg
ZM 70		Thread: M70x2 \| D: 92 mm \| h: 18 mm \| Mass: 0.36 kg
ZMA 70/110		Thread: M70x2 \| D: 110 mm \| h: 35 mm \| Mass: 1.4 kg
ZM 75		Thread: M75x2 \| D: 98 mm \| h: 18 mm \| Mass: 0.4 kg
ZMA 75/125		Thread: M75x2 \| D: 125 mm \| h: 38 mm \| Mass: 2.11 kg
ZM 80		Thread: M80x2 \| D: 105 mm \| h: 18 mm \| Mass: 0.46 kg
ZMA 80/120		Thread: M80x2 \| D: 120 mm \| h: 35 mm \| Mass: 1.33 kg
ZM 85		Thread: M85x2 \| D: 110 mm \| h: 18 mm \| Mass: 0.49 kg
ZM 90		Thread: M90x2 \| D: 120 mm \| h: 20 mm \| Mass: 0.7 kg
ZMA 90/130		Thread: M90x2 \| D: 130 mm \| h: 38 mm \| Mass: 2.01 kg
ZMA 90/155		Thread: M90x2 \| D: 155 mm \| h: 38 mm \| Mass: 3.36 kg
ZM 100		Thread: M100x2 \| D: 130 mm \| h: 20 mm \| Mass: 0.77 kg
ZMA 100/140		Thread: M100x2 \| D: 140 mm \| h: 38 mm \| Mass: 2.23 kg
ZM 105		Thread: M105x2 \| D: 140 mm \| h: 22 mm \| Mass: 1.05 kg
ZM 110		Thread: M110x2 \| D: 145 mm \| h: 22 mm \| Mass: 1.09 kg
ZM 115		Thread: M115x2 \| D: 150 mm \| h: 22 mm \| Mass: 1.13 kg
ZM 120		Thread: M120x2 \| D: 155 mm \| h: 24 mm \| Mass: 1.28 kg
ZM 125		Thread: M125x2 \| D: 160 mm \| h: 24 mm \| Mass: 1.33 kg
ZM 130		Thread: M130x2 \| D: 165 mm \| h: 24 mm \| Mass: 1.36 kg
ZM 140		Thread: M140x2 \| D: 180 mm \| h: 26 mm \| Mass: 1.85 kg
ZM 150		Thread: M150x2 \| D: 195 mm \| h: 26 mm \| Mass: 2.24 kg

Lock Nuts & WashersINA

54 product codes available in this family

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INA ZM / ZMA Precision Locknuts (M6-M150)

Brand INA·Lock Nuts & Washers

Available part numbers (54)

ZM 06, ZM 08, ZM 10, ZM 12, ZM 15, ZMA 15/33, ZM 17, ZM 20, ZMA 20/38, ZMA 20/52 + 44 more — see full table ↓

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Product codes & specifications

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RFQ List (0)

	Product code	Spec
	ZM 06	Thread: M6x0.5 \| D: 16 mm \| h: 8 mm \| Mass: 0.01 kg
	ZM 08	Thread: M8x0.75 \| D: 16 mm \| h: 8 mm \| Mass: 0.01 kg
	ZM 10	Thread: M10x1 \| D: 18 mm \| h: 8 mm \| Mass: 0.01 kg
	ZM 12	Thread: M12x1 \| D: 22 mm \| h: 8 mm \| Mass: 0.015 kg
	ZM 15	Thread: M15x1 \| D: 25 mm \| h: 8 mm \| Mass: 0.018 kg
	ZMA 15/33	Thread: M15x1 \| D: 33 mm \| h: 16 mm \| Mass: 0.08 kg
	ZM 17	Thread: M17x1 \| D: 28 mm \| h: 10 mm \| Mass: 0.028 kg
	ZM 20	Thread: M20x1 \| D: 32 mm \| h: 10 mm \| Mass: 0.035 kg
	ZMA 20/38	Thread: M20x1 \| D: 38 mm \| h: 20 mm \| Mass: 0.12 kg
	ZMA 20/52	Thread: M20x1 \| D: 52 mm \| h: 25 mm \| Mass: 0.32 kg
	ZM 25	Thread: M25x1.5 \| D: 38 mm \| h: 12 mm \| Mass: 0.055 kg
	ZMA 25/45	Thread: M25x1.5 \| D: 45 mm \| h: 20 mm \| Mass: 0.16 kg
	ZMA 25/58	Thread: M25x1.5 \| D: 58 mm \| h: 28 mm \| Mass: 0.43 kg
	ZM 30	Thread: M30x1.5 \| D: 45 mm \| h: 12 mm \| Mass: 0.075 kg
	ZMA 30/52	Thread: M30x1.5 \| D: 52 mm \| h: 22 mm \| Mass: 0.22 kg
	ZMA 30/65	Thread: M30x1.5 \| D: 65 mm \| h: 30 mm \| Mass: 0.55 kg
	ZM 35	Thread: M35x1.5 \| D: 52 mm \| h: 12 mm \| Mass: 0.099 kg
	ZMA 35/58	Thread: M35x1.5 \| D: 58 mm \| h: 22 mm \| Mass: 0.26 kg
	ZMA 35/70	Thread: M35x1.5 \| D: 70 mm \| h: 30 mm \| Mass: 0.61 kg
	ZM 40	Thread: M40x1.5 \| D: 58 mm \| h: 14 mm \| Mass: 0.14 kg
	ZMA 40/62	Thread: M40x1.5 \| D: 62 mm \| h: 22 mm \| Mass: 0.27 kg
	ZMA 40/75	Thread: M40x1.5 \| D: 75 mm \| h: 30 mm \| Mass: 0.67 kg
	ZM 45	Thread: M45x1.5 \| D: 65 mm \| h: 14 mm \| Mass: 0.17 kg
	ZMA 45/68	Thread: M45x1.5 \| D: 68 mm \| h: 24 mm \| Mass: 0.35 kg
	ZMA 45/85	Thread: M45x1.5 \| D: 85 mm \| h: 32 mm \| Mass: 0.92 kg
	ZM 50	Thread: M50x1.5 \| D: 70 mm \| h: 14 mm \| Mass: 0.19 kg
	ZMA 50/75	Thread: M50x1.5 \| D: 75 mm \| h: 25 mm \| Mass: 0.43 kg
	ZMA 50/92	Thread: M50x1.5 \| D: 92 mm \| h: 32 mm \| Mass: 1.06 kg
	ZM 55	Thread: M55x2 \| D: 75 mm \| h: 16 mm \| Mass: 0.23 kg
	ZMA 55/98	Thread: M55x2 \| D: 98 mm \| h: 32 mm \| Mass: 1.17 kg
	ZM 60	Thread: M60x2 \| D: 80 mm \| h: 16 mm \| Mass: 0.25 kg
	ZMA 60/98	Thread: M60x2 \| D: 98 mm \| h: 32 mm \| Mass: 1.07 kg
	ZM 65	Thread: M65x2 \| D: 85 mm \| h: 16 mm \| Mass: 0.27 kg
	ZMA 65/105	Thread: M65x2 \| D: 105 mm \| h: 32 mm \| Mass: 1.21 kg
	ZM 70	Thread: M70x2 \| D: 92 mm \| h: 18 mm \| Mass: 0.36 kg
	ZMA 70/110	Thread: M70x2 \| D: 110 mm \| h: 35 mm \| Mass: 1.4 kg
	ZM 75	Thread: M75x2 \| D: 98 mm \| h: 18 mm \| Mass: 0.4 kg
	ZMA 75/125	Thread: M75x2 \| D: 125 mm \| h: 38 mm \| Mass: 2.11 kg
	ZM 80	Thread: M80x2 \| D: 105 mm \| h: 18 mm \| Mass: 0.46 kg
	ZMA 80/120	Thread: M80x2 \| D: 120 mm \| h: 35 mm \| Mass: 1.33 kg
	ZM 85	Thread: M85x2 \| D: 110 mm \| h: 18 mm \| Mass: 0.49 kg
	ZM 90	Thread: M90x2 \| D: 120 mm \| h: 20 mm \| Mass: 0.7 kg
	ZMA 90/130	Thread: M90x2 \| D: 130 mm \| h: 38 mm \| Mass: 2.01 kg
	ZMA 90/155	Thread: M90x2 \| D: 155 mm \| h: 38 mm \| Mass: 3.36 kg
	ZM 100	Thread: M100x2 \| D: 130 mm \| h: 20 mm \| Mass: 0.77 kg
	ZMA 100/140	Thread: M100x2 \| D: 140 mm \| h: 38 mm \| Mass: 2.23 kg
	ZM 105	Thread: M105x2 \| D: 140 mm \| h: 22 mm \| Mass: 1.05 kg
	ZM 110	Thread: M110x2 \| D: 145 mm \| h: 22 mm \| Mass: 1.09 kg
	ZM 115	Thread: M115x2 \| D: 150 mm \| h: 22 mm \| Mass: 1.13 kg
	ZM 120	Thread: M120x2 \| D: 155 mm \| h: 24 mm \| Mass: 1.28 kg
	ZM 125	Thread: M125x2 \| D: 160 mm \| h: 24 mm \| Mass: 1.33 kg
	ZM 130	Thread: M130x2 \| D: 165 mm \| h: 24 mm \| Mass: 1.36 kg
	ZM 140	Thread: M140x2 \| D: 180 mm \| h: 26 mm \| Mass: 1.85 kg
	ZM 150	Thread: M150x2 \| D: 195 mm \| h: 26 mm \| Mass: 2.24 kg

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INA ZM / ZMA Precision Locknuts (M6-M150)