Stainless Steel Kep Lock Nuts Manufacturer in India
Ramesh Steel Corporation, was incepted in 1983 by Mr. Ramesh D Jain, a renowned name in Steel Industry, Ramesh Steel corporation is known as a specialist of manufacturing steel Fasteners ,Duplex Steel Fasteners, Stainless Steel Fasteners, Kep Lock Nuts, Bolts ,Nuts ,Screws & Washer since more than 3 decades ,Mr. Ramesh D. Jain is having more than 35 years of experience in manufacturing of customized Fasteners depends upon the requirements of our clients based in Saudi Arabia, Kuwait, Turkey, United Arab Emirates, Oman, Egypt, Indonesia, Malaysia, Singapore, Thailand, Sri Lanka, Russia, West Africa & Latin America,

Ramesh Steel Corporation we stand behind our products, a team of our experienced engineers, we dedicate for complex & strict defined requirements, we have manufactured fasteners based on complex drawings where many companies have refused to manufacture the same to our customers because of their complexity & requirements of special grades, Ramesh Steel Corporation is Centrally located in Mumbai, India, Ramesh Steel Corporation has played a vital role in the growth of Duplex Steel Fasteners, Stainless Steel Fasteners, Kep Lock Nuts, Bolts & Nuts Screws & Washer, we are manufacturing Fasteners in different metals & grades like Nickel 200/201, Monel 400/K500, Inconel 600, Inconel 625, Inconel 800, Inconel 825, Hastelloy C22/ C276, Alloy 20, Titanium, Duplex & Super Duplex in form of Kep Lock Nuts bolts, Nuts, Screws, Washers Etc.
Kep Lock Nuts
Keps nuts are hex nuts with captive (non-removable) free-spinning lock washers, which are often external tooth. The nut turns freely during installation until the lock washer contacts and bites into the mating surface as the nut is tightened. If the mating surface is painted or plated, corrosion can occur if the lock washer penetrates and removes the surface treatment. Used in commercial and industrial applications, Keps nuts are also known as: captive washer lock nuts, Keps lock nuts, K-Lock nuts.
Since they are not prevailing torque type lock nuts, they are not "locked" until fully seated and tightened.
Threads are standard right-hand and Unified inch coarse series (UNC, Unified National Coarse) or Unified inch fine (UNF, Unified National Fine).
Keps nut size refers to its nominal thread diameter. Typically, sizes range from about #4 to 3/8". Sizes less than 1/4" are listed as a number size (the larger the number the larger the size) while sizes that are 1/4" and larger are specified in inches, usually fractional rather than decimal.
Nut width across flats, which is wrench size, and thickness vary with the size of the Keps nut.
Steel, zinc plated, is a common material and finish.
Keps nuts are popular because they are low cost, reusable and the one-piece solution saves time over installing a separate lock washer and nut. However, if either the nut or washer is damaged, both must be replaced. Since they are not prevailing torque type lock nuts, they are suitable for use on long threaded assemblies and will not gall mating threads.
Kep Lock Nuts Dimensions
Dimensional Data | |||||||||
Size | Material Thickness | Across Flats A/F in mm | Hole Diameter d Ø in mm | d1 Ø in mm | d2 Ø in mm | Spigot Length | TR Part Number | ||
h in mm | h 1 in mm | ||||||||
M2.5 | 1 | 5.5 | 4.5 | 4.5 | 4.7 | 3 | 0.9 | M2.5 - -1ST TC1 | Standard Spigot Ex-Stock |
M3 | 1 | 5.5 | 4.5 | 4.5 | 4.7 | 3 | 0.9 | M3 - -1ST TC1 | |
M4 | 1 | 7 | 5.5 | 5.5 | 5.7 | 3.2 | 0.9 | M4 - -1ST TC1 | |
M5 | 1 | 8 | 6.5 | 6.5 | 6.75 | 4 | 0.9 | M5 - -1ST TC1 | |
M6 | 1 | 10 | 8 | 8 | 8.3 | 5 | 0.9 | M6 - -1ST TC1 | |
M8 | 2 | 13 | 10 | 10 | 10.3 | 6.5 | 1.8 | M8 - -2ST TC1 | |
M10 | 2 | 15 | 12.5 | 12.5 | 12.85 | 8 | 1.8 | M10 - -2ST TC1 | |
M12 | 3 | 17 | 14.5 | 14.5 | 14.85 | 10 | 2.8 | M12 - -3ST TC1 | |
M16 | 3 | 22 | 18.5 | 18.5 | 18.85 | 13 | 2.4 | M16 - -3ST TC1 | |
M20 | 4 | 27 | 23 | 23 | 23.4 | 16 | 3.9 | M20 - -4ST TC1 | |
M2.5 | 1.5 | 5.5 | 4.5 | 4.5 | 4.7 | 3 | 1.4 | M2.5 -1.5ST TC1 | Intermediate Spigot Ex-Stock |
M3 | 1.5 | 5.5 | 4.5 | 4.5 | 4.7 | 3 | 1.4 | M3 - 1.5ST TC1 | |
M4 | 1.5 | 7 | 5.5 | 5.5 | 5.7 | 3.2 | 1.4 | M4 - 1.5ST TC1 | |
M5 | 1.5 | 8 | 6.5 | 6.5 | 6.75 | 4 | 1.4 | M5 - 1.5ST TC1 | |
M6 | 1.5 | 10 | 8 | 8 | 8.3 | 5 | 1.4 | M6 - 1.5ST TC1 | |
M2.5 | 2 | 5.5 | 4.5 | 4.5 | 4.7 | 3 | 1.8 | M2.5 - -2ST TC1 | Long Spigot Ex-Stock |
M3 | 2 | 5.5 | 4.5 | 4.5 | 4.7 | 3 | 1.8 | M3 - -2ST TC1 | |
M4 | 2 | 7 | 5.5 | 5.5 | 5.7 | 4.5 | 1.8 | M4 - -2ST TC1 | |
M5 | 2 | 8 | 6.5 | 6.5 | 6.75 | 5 | 1.8 | M5 - -2ST TC1 | |
M6 | 2 | 10 | 8 | 8 | 8.3 | 5 | 1.8 | M6 - -2ST TC1 |
Kep Lock Nuts Price
K Lock Nuts
FOB Price: US $1800-3500 / Ton