A Fastener Megastore™ with Lower Prices and Volume Discounts!

DIN 985 Nylon Insert Hex Lock Nuts

PDF file iconDIN 985 SpecificationsPDF file iconMetric Fastener Data
DIN 985 Nylon Insert Hex Lock Nut

DIN 985 Nylon Insert Hex Lock Nuts are internally machine screw threaded hex nuts that rely upon an undersized captive nylon (polyamide) washer to create the prevailing torque feature that resists rotation and, hence, loosening. Identified as "regular" pattern or "thin type," they are considered one-way lock nuts because they are always installed so the nylon insert threads on last. While the non-metallic insert functions as a gas and moisture seal, it is limited with regard to temperature (-58 to +250°F) and chemicals it can withstand. And even though the insert is resilient and largely recovers to its original size when the nut is removed, nylon insert lock nuts can only be reused a limited number of times. It is unlikely that thread galling will occur with steel nuts but the additional mating thread friction introduced by the nylon insert may cause galling with stainless steel nuts. Class 6, 8 and 10 steel nuts are available as are A2, A4 and A4-80 stainless steel. Coarse threads are standard but many sizes are offered with fine and extra fine threads. The finish for steel is zinc plated. Thread tolerance is 6H; right-hand threads are standard. Always ensure that the nut Class is equal to or greater than the screw Class. DIN 985 Nylon Insert Hex Lock Nuts are similar to ISO 7040 and ANSI B18.16.3M. If a heavy pattern (high type) nylon insert hex lock nut is required, consider DIN 982.

Print Print
Pages: ◄ ► 1 2 3 4 5 …6

Filters

Size:

Size

-- Select --
Grade:

Grade

-- Select --
Material:

Material

-- Select --
Finish:

Finish

-- Select --
?Help
Code Product Qty. Package Qty. Carton
NPF636-500 M6-1.0 Nylon Insert Hex Lock Nut DIN 985, Class 8, Zinc Plated
NPG636-500 M6-1.0 Nylon Insert Hex Lock Nut DIN 985, Class 8, Zinc Yellow Plated
NPN636-500 M6-1.0 Nylon Insert Hex Lock Nut DIN 985, Class 10, Zinc Plated
NPR636-500 M6-1.0 Nylon Insert Hex Lock Nut DIN 985, Class 10, Zinc Yellow Plated
NQA636-500 M6-1.0 Nylon Insert Hex Lock Nut DIN 985, A2 Stainless Steel
NQB636-500 M6-1.0 Nylon Insert Hex Lock Nut DIN 985, A4 Stainless Steel
NPF649-500 M7-1.0 Nylon Insert Hex Lock Nut DIN 985, Class 8, Zinc Plated
NPH663-500 M8-1.0 Fine Thread Nylon Insert Hex Lock Nut DIN 985, Class 8, Zinc Plated
NPK663-500 M8-1.0 Fine Thread Nylon Insert Hex Lock Nut DIN 985, Class 8, Zinc Yellow Plated
NPP663-500 M8-1.0 Fine Thread Nylon Insert Hex Lock Nut DIN 985, Class 10, Zinc Plated
NPF664-500 M8-1.25 Nylon Insert Hex Lock Nut DIN 985, Class 8, Zinc Plated
NPG664-500 M8-1.25 Nylon Insert Hex Lock Nut DIN 985, Class 8, Zinc Yellow Plated
NPN664-500 M8-1.25 Nylon Insert Hex Lock Nut DIN 985, Class 10, Zinc Plated
NPR664-500 M8-1.25 Nylon Insert Hex Lock Nut DIN 985, Class 10, Zinc Yellow Plated
NQA664-500 M8-1.25 Nylon Insert Hex Lock Nut DIN 985, A2 Stainless Steel
NQB664-500 M8-1.25 Nylon Insert Hex Lock Nut DIN 985, A4 Stainless Steel
NQC664-500 M8-1.25 Nylon Insert Hex Lock Nut DIN 985, A4-80 Stainless Steel
NPJ691-500 M10-1.0 Extra Fine Thread Nylon Insert Hex Lock Nut DIN 985, Class 8, Zinc Plated
NPL691-500 M10-1.0 Extra Fine Thread Nylon Insert Hex Lock Nut DIN 985, Class 8, Zinc Yellow Plated
NPQ691-500 M10-1.0 Extra Fine Thread Nylon Insert Hex Lock Nut DIN 985, Class 10, Zinc Plated
NPT691-500 M10-1.0 Extra Fine Thread Nylon Insert Hex Lock Nut DIN 985, Class 10, Zinc Yellow Plated
NPH693-500 M10-1.25 Fine Thread Nylon Insert Hex Lock Nut DIN 985, Class 8, Zinc Plated
NPK693-500 M10-1.25 Fine Thread Nylon Insert Hex Lock Nut DIN 985, Class 8, Zinc Yellow Plated
NPP693-500 M10-1.25 Fine Thread Nylon Insert Hex Lock Nut DIN 985, Class 10, Zinc Plated
NPS693-500 M10-1.25 Fine Thread Nylon Insert Hex Lock Nut DIN 985, Class 10, Zinc Yellow Plated
Pages: ◄ ► 1 2 3 4 5 …6

Product Filter Help

It's easy and fast to find the exact item you're looking for using these filters. Depending on the item, you can filter by Size (diameter and thread), Length, Grade/Class, Material and Finish/Plating. Here's how…

  • Click in a Select box to view the options. It may be necessary to scroll to see the entire list. The number of matching items is displayed in parentheses ( ).
  • Click on the desired item and -- Select -- will change to 1 Selected. You can select more than one item in each Select box. For example, you can select two sizes and 1 Selected will change to 2 Selected.
  • Click in other Select boxes and make more choices. Available options will be based on selections you've already made.
  • Even though there are thousands of fasteners to choose from a particular material or finish may not be available in every size and length. So, try different combinations of filters like Size, Grade and Material to see matching Lengths and Finishes.
  • To deselect a single filter option, click in the Select box and click on the selected option. It will appear at the top of the list in bold. To clear all filter selections, click on the Clear Filters button.

Even after filtering there may be several pages of items. The number of pages will be displayed to the left of the Add All Selected Items button. Click on a page number or the arrows to page forward and back.

Press Esc to close this window.