GUP 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, GUP 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.

Available from stock in diameters ranging from M10 to M60, both in steel and stainless steel, with other sizes available to order.

Please contact us with your requirements to further your enquiry.

The KMTA precision nut have three locking pins equally spaced around, so that it can be locked onto the shaft by tight the grub screws. The end face of three brass pins are machined to match the shaft thread. When tightened to the recommended torque, the locking pin can provide sufficient friction between the ends and the unloaded thread flanks to prevent the nut from loosening under normal operating conditions

Available from stock in diameters ranging from M25 to M100, both in steel and stainless steel, with other sizes available to order.

Please contact us with your requirements to further your enquiry.

The KMT precision nut have three locking pins equally spaced around, so that it can be locked onto the shaft by tight the grub screws. The end face of three brass pins are machined to match the shaft thread. When tightened to the recommended torque, the locking pin can provide sufficient friction between the ends and the unloaded thread flanks to prevent the nut from loosening under normal operating conditions

Nuts up to the dimensions KMT 15 M 75×2 has an additional branch and can therefore also be tightened with a wrench flats.

Available from stock in diameters ranging from M10 to M100, both in steel and stainless steel, with other sizes available to order.

Please contact us with your requirements to further your enquiry.

DIN 70852 slotted spanner locknut can be used for adjusting the amount of play or for securing shaft-hub connections in an axial direction, for example. Comparing KM nut, DIN 70852 nut is more space saving. With more thread sizes, these nuts are more flexible.

Available from stock in diameters ranging from M10 to M100, both in steel and stainless steel, with other sizes available to order.

Please contact us with your requirements to further your enquiry.

Type C: male

Type D: female d4 = d3

Type G: female d4 > d3

Type C / D

case hardening steel

case hardened all round depth 0.2 to 0.4 mm

hardness (550+ 100) HV 10

Type G

Heat-treated steel

tempered

hardness (350 + 80) HV 30

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.

Types

Type W: Steel, not hardened 

Type WNI: Stainless Steel, not hardened

Type H: Steel, hardened 

Type W
Steel
- Tensile strength class 5
- not hardened
- blackened 

Type WNI
Stainless Steel AISI 304 - not hardened 

Type H
Steel
- Tensile strength class 5

hardened HRC 60 ± 2 (thread not hardened) 

Mating surface ground or fine turned
INFORMATION
On slotted locknuts DIN 1804 the ground surface d3 stands proud
and should be used as a mating surface.