GUK Nylon Insert Locking Nuts

GUK Nylon Insert Locking Nuts are suitable for similar applications as the ‘KM Series’ locknut.

The addition of the nylon insert, located towards the top of the nut, deforms over the mating thread and captures the bolt or stud. This provides a locking feature, causing resistance – or prevailing torque – keeping the nut locked into position and resistant to vibration.

In addition to the polyamide insert locking feature, GUK Locking Nuts have four equally spaced slots machined into the outer diameter of the nut, which enable the nut to be secured into position using the appropriate tab washer, by bending the tab into the slots.

These locknuts are not suitable in applications with high temperatures.

GUK Nylon Insert Locking Nuts are available in diameters from M10 to M100. Other sizes available to order.

Technical Data & Available Sizes
Reference	d (mm)	D (mm)	D2 (mm)	H (mm)	h (mm)	s (mm)	t (mm)	Grooves

GUK 0	M10 x 0.75	18	15	7.6	4.5	3	15	4
GUK 1	M12 x 1.00	21	18	7.6	4.5	3	18	4
GUK 2	M15 x 1.00	24	21	8.6	5.5	4	21	4
GUK 3	M17 x 1.00	28	24	8.7	5.5	4	24	4
GUK 4	M20 x 1.00	32	27	9.6	6.0	4	27	4
GUK 5	M25 x 1.50	38	33	10.5	6.5	5	33	4
GUK 6	M30 x 1.50	44	38	10.7	6.6	5	38	4
GUK 7	M35 x 1.50	50	44	11.3	7.0	5	44	4
GUK 8	M40 x 1.50	56	50	12.3	7.7	6	50	4
GUK 9	M45 x 1.50	62	55	12.3	7.8	6	55	4
GUK 10	M50 x 1.50	68	61	12.9	8.1	6	61	4
GUK 11	M55 x 2.00	75	68	13.4	8.2	7	68	6
GUK 12	M60 x 2.00	80	73	13.4	8.2	7	73	6
GUK 13	M65 x 2.00	85	77	14.5	9.0	7	77	6
GUK 14	M70 x 2.00	92	84	14.5	9.2	8	84	6
GUK 15	M75 x 2.00	98	89	15.5	10.0	8	89	6
GUK 16	M80 x 2.00	105	96	16.5	11.2	10	96	8
GUK 17	M85 x 2.00	110	100	17.5	12.1	10	100	8
GUK 18	M90 x 2.00	210	110	17.7	12.5	10	110	8
GUK 19	M95 x 2.00	125	115	18.7	13.5	10	115	8
GUK 20	M100 x 2.00	130	120	19.7	14.5	10	120	8