Backup Washer

The HYTORC Backup Washer is a comprehensive add-on eliminating completely the need of separate backup wrenches during bolting. The surface design locks the fastener strictly to the surface and prevents the nut from rotating during work. The HYTORC fasteners series also includes innovative HYTORC Washers which allow counter-arm-free working and significantly improve the speed and safety of joint work.

Reusable and sustainable solution
Only a small additional cost
Current bolts and nuts can be used with the HYTORC Washers
Available in bolt sizes M16-M150

Description

Backup Washer
Bolt Size (M)	Hex Size (mm)	Drive	Item	d1 (mm)	d4 (mm)	h (mm)
M20	30	3/4″	ZBW-M20	21,1	34,6	3,3
M22	32	3/4″	ZBW-M22	23,1	36,8	3,3
M24	36	3/4″	ZBW-M24	25,3	41,9	4
M27	41	3/4″	ZBW-M27	28,7	47,5	4
M30	46	3/4″	ZBW102-M30	31,4	53,1	4,8
M33	50	3/4″	ZBW104-M33	34,2	58,6	4,8
M36	55	3/4″	ZBW106-M36	37,9	64,2	4,8
M39	60	3/4″	ZBW108-M39	40,4	69,6	4,8
M27	41	1″	ZBW-M27	28,7	47,5	4
M30	46	1″	ZBW102-M30	31,4	53,1	4,8
M33	50	1″	ZBW104-M33	34,2	58,6	4,8
M36	55	1″	ZBW106-M36	37,9	64,2	4,8
M39	60	1″	ZBW108-M39	40,4	69,6	4,8
M42	65	1″	ZBW110-M42	43,3	75,2	6,2
M45	70	1″	ZBW112-M45	46,2	80,6	6,2
M48	75	1″	ZBW114-M48	50,1	86,2	6,2
M52	80	1″	ZBW200-M52	54,1	91,6	6,2
M39	60	1 1/2″	ZBW108-M39	40,4	69,6	4,8
M42	65	1 1/2″	ZBW110-M42	43,3	75,2	6,2
M45	70	1 1/2″	ZBW112-M45	46,2	80,6	6,2
M48	75	1 1/2″	ZBW114-M48	50,1	86,2	6,2
M52	80	1 1/2″	ZBW200-M52	54,1	91,6	6,2
M56	85	1 1/2″	ZBW204-M56	59,3	104,6	7,6
M64	95	1 1/2″	ZBW208-M64	67,5	114,3	8,5
M72	105	1 1/2″	ZBW-M72	74	125	8,5
M80	115	1 1/2″	ZBW-M80	82	133,4	10,3

Washer Driver
Item	ØA (mm)	ØB (mm)	C (mm)	Drive
DZAK-M20-M30X-NHP	58,5	48,5	76	3/4″
DZAK-012-104X	58,5	51,8	80,6	3/4″
DZAK-014-107X	58,5	56	78,5	3/4″
DZAK-100-110X	63,5	61	88,9	3/4″
DZAK-102-113X	71,3	68,7	93,9	3/4″
DZAK-104-200X	78,5	76	95,8	3/4″
DZAK-106-203X	84,5	82	104,6	3/4″
DZAK-108-206X	90	87	105,7	3/4″
DZAL-100-110X	71,2	63,5	95,2	1″
DZAL-102-113X	71,2	69,9	99,8	1″
DZAL-104-200X	78,5	76	110	1″
DZAL-106-203X	85	82	106,8	1″
DZAL-108-206X	89,5	87,3	116,8	1″
DZAL-110-209X	99,3	94	132,3	1″
DZAL-112-212X	103,7	99,1	133,6	1″
DZAL-114-215X	112,9	107	134,5	1″
DZAL-200-302X	116,2	113	143,9	1″
DZAM-108-206X	105,2	88,9	132,7	1 1/2″
DZAM-110-209X	101,6	101,6	136	1 1/2″
DZAM-112-212X	107,1	107,1	135,3	1 1/2″
DZAM-114-215X	112	112	138,9	1 1/2″
DZAM-200-302X	121	121	146,1	1 1/2″
DZAM-204-308X	133	133	151,1	1 1/2″
DZAM-208-314X	144	144	164,7	1 1/2″
DZAM-212-402X	155	155	172,4	1 1/2″
DZAM-300-410X	166	166	183,6	1 1/2″

Brand

HYTORC

HYTORC

HYTORC is the world’s leader in hydraulic and pneumatic torque wrench manufacturing. With over 50 years of experience focused entirely on developing the highest quality industrial bolting systems, HYTORC is the most trusted name in the industry. The latest product line features patented industry-firsts like hands-free operation, onboard documentation systems and industry-leading bolt load accuracy to reduce nut loosening and joint failure. Haitor has been cooperating with HYTORC throughout its whole lifetime. Visit manufacturer's website >>